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Long-lived timber construction products deliver a net biogenic carbon storage benefit over the building service life.

The evidence leans towards this: 13 of 15 directional studies support it.Working conclusion (automated, not yet expert-reviewed)

In plain terms

The evidence leans towards this: 13 of 15 directional studies support it.

This sentence is generated from the same numbers shown below — consensus share, confidence band and the number of indexed studies. Open any section to see exactly how it was reached.

Version 21 · WI-EV v1.7.0 · last swept 2026-11-02

Evidence strength
58/100
Supported

How much and how good the evidence is, not whether the claim is true.

Confidence
Low confidence

Too few, too old or too conflicting sources to specify from.

Consensus
84%13 of 15 directional studies

13 support · 2 contradict · 38 relevant – no direction · 15 directional

Studies
53

1990–2026

Confidence is limited most by volume of evidence (6/30).

Directional studies by test type
(a) Field test in the claim's exposure0
(b) Field test in a different exposure0
(c) Laboratory decay or weathering test0
(d) Mechanism or chemistry study15

Weighted in this order in the Evidence strength. Reviews are listed separately and never counted as directional studies (15 reviews). 4 duplicate records were merged (same title and authors under another identifier).

Behind the answer

All of the data, one click away.

Nothing here is hidden — it is folded, so the answer stays readable. Open any section to see exactly how the numbers were produced.

Stance basis for the 53 pooled studies: 2 judged from full text · 51 abstract only. Full-text verdicts count only after a staff reviewer approves them.

How the score is built6 weighted components, 58/100 total
Volume of evidence

15 directional studies, weighted by grade.

6/30
Study quality

Mean evidence grade 59/100 across the pool.

15/25
Agreement

84% of weighted directional evidence agrees.

14/20
Peer review

92% published in peer-reviewed venues.

9/10
Recency

Median publication year 2022.

10/10
Reproducibility

77% resolvable by DOI and independently checkable.

4/5
Where the literature disagrees2 conflicting pairs, with the likely reason
Supports

Comparative life cycle assessment of cross laminated timber building and concrete building with special focus on biogenic carbon

Energy and Buildings · 2022 · Grade A · Peer-reviewed

The CLT building had lower global-warming impact when biogenic carbon was included.

Contradicts

The carbon costs of global wood harvests

Nature · 2023 · Grade A · Peer-reviewed

The study characterizes wood harvest as imposing carbon costs and challenges accounting that portrays wood use as carbon-negative.

Why they differ

Test method: consequential life cycle assessment vs carbon-accounting approaches. Exposure: mid-rise apartment buildings vs global wood harvests.

Supports

Climate change mitigation effect of harvested wood products in regions of Japan

Carbon Balance and Management · 2015 · Grade B · Peer-reviewed

The model quantified a positive carbon-storage mitigation effect from harvested wood products.

Contradicts

Effects on Carbon Storage of Conversion of Old-Growth Forests to Young Forests

Science · 1990 · Grade B · Peer-reviewed

Even including carbon sequestered in wooden buildings, timber harvest produced a net atmospheric carbon dioxide flux.

Why they differ

Test method: production approach modelling vs simulations and mass balance calculations. Exposure: regions of Japan vs wooden buildings and harvested forests. Duration: projections to 2050 vs at least 200 years.

How the consensus moved over timeConsensus recomputed using only the evidence published up to each year
YearPublishedCumulativeSupportContradictConsensus
199011010%
200912010%
2010241150%
2012152167%
2013273172%
2014184178%
2015195182%
20162116185%
20172136185%
20181146185%
20193176185%
20204216185%
20214256185%
20224299190%
202353411282%
202474111282%
202564713284%
202665313284%
Revision history20 published revisions
  1. v21consensus 85% → 84%, confidence moderate → low.2026-11-01 · score 58 · 84%
  2. v20WI-EV v1.7.0: Supported. Direction calculated from existing weighted primary studies (14 support, 2 contradict). Evidence strength 58/100; moderate confidence. Verdict thresholds: two-thirds weighted support or opposition, otherwise Mixed; fewer than three directional studies = Unclear. Score arithmetic, classifications and confidence thresholds unchanged. No score was set by hand. Re-swept; no change to the published figures.2026-11-01 · score 58 · 85%
  3. v191 new study indexed.2026-10-19 · score 58 · 85%
  4. v18WI-EV v1.6.0: Supported. Direction calculated from existing weighted primary studies (14 support, 2 contradict). Evidence strength 58/100; moderate confidence. Verdict thresholds: two-thirds weighted support or opposition, otherwise Mixed; fewer than three directional studies = Unclear. Score arithmetic, classifications and confidence thresholds unchanged. No score was set by hand. Re-swept; no change to the published figures.2026-10-14 · score 58 · 85%
  5. v17WI-EV v1.5.0: tiers re-checked; above-ground field studies (EN 330, L-joint, lap-joint, double-layer, in-service surveys) are tier (a) for above-ground claims. 54 relevant primary studies, 16 directional (0 field in the claim's exposure). No score was set by hand. 1 new study indexed.2026-10-14 · score 58 · 85%
  6. v16WI-EV v1.4.0: studies weighted by test type (field in the claim's exposure > field elsewhere > laboratory > mechanism), reviews moved out of the directional pool (14), 3 duplicate records merged. 53 relevant primary studies, 16 directional (0 field in the claim's exposure). No score was set by hand. Evidence strength -15 to 58, consensus 87% → 85%.2026-10-14 · score 58 · 85%
  7. v155 new studies indexed, Evidence strength +2 to 73, consensus 86% → 87%.2026-10-14 · score 73 · 87%
  8. v1428 new studies indexed, Evidence strength +6 to 71, consensus 83% → 86%.2026-10-14 · score 71 · 86%
  9. v13WI-EV v1.3.0 recall expansion: expanded query set, IRG-WP documents and OpenAlex citation chaining; every new record passed the same wood-domain rule and relevance classifier. 37 relevant studies, 14 directional. No score was set by hand. 11 new studies indexed, Evidence strength +5 to 65, consensus 100% → 83%, confidence low → moderate.2026-10-14 · score 65 · 83%
  10. v12Evidence strength +1 to 60.2026-10-12 · score 60 · 100%
  11. v11WI-EV v1.2.0 relevance fix: 13 of 39 previously counted studies removed as not relevant (reasons kept in the public audit log); 26 relevant studies remain, 3 directional. Evidence strength -4 to 59, confidence moderate → low.2026-10-12 · score 59 · 100%
  12. v102 new studies indexed.2026-08-16 · score 63 · 100%
  13. v91 new study indexed.2026-08-15 · score 63 · 100%
  14. v81 new study indexed.2026-08-10 · score 63 · 100%
  15. v71 new study indexed, Evidence strength +1 to 63, confidence low → moderate.2026-08-08 · score 63 · 100%
  16. v6Evidence strength +2 to 62.2026-08-08 · score 62 · 100%
  17. v51 new study indexed, Evidence strength +1 to 60.2026-08-08 · score 60 · 100%
  18. v47 new studies indexed, Evidence strength -5 to 59.2026-08-07 · score 59 · 100%
  19. v312 new studies indexed, Evidence strength +1 to 64.2026-08-05 · score 64 · 100%
  20. v214 new studies indexed, Evidence strength +63 to 63, consensus 0% → 100%.2026-08-04 · score 63 · 100%
Every indexed record53 studies with stance, grade and citation count

Climate impacts of timber-frame buildings in a life cycle perspective: Implications of static and dynamic modelling approaches for biogenic carbon accounting

Ambrose Dodoo, Roger Sathre, Chiara Piccardo · 2026 · Environmental Impact Assessment Review · doi:10.1016/j.eiar.2025.108213 · Mechanism / chemistry

Timber-frame biogenic-carbon models differed significantly, but no direction for net service-life storage is stated.

Stance not stated in abstract

Judged from abstract

Grade C · 4 citations

Peer-reviewed

Wood and Wood-Based Products in Construction: Carbon Sequestration, Emissions and End-of-Life Scenarios

Michał Pierzchalski · 2026 · Drewno Prace Naukowe Doniesienia Komunikaty = Wood Research Papers Reports Announcements · doi:10.53502/wood-209238 · Mechanism / chemistry

The study compares construction-wood sequestration, emissions, and end-of-life scenarios without reporting a net service-life storage finding.

Stance not stated in abstract

Judged from abstract

Grade C · 1 citations

Peer-reviewed

Improving biogenic carbon modelling of harvested wood products using dynamic LCA: Assessing the climate change mitigation potential of underutilised wood

D Von Dufving, Andrew Norton, Patricia Schneider-Marin et al. · 2026 · Resources Conservation & Recycling Advances · doi:10.1016/j.rcradv.2026.200389 · Mechanism / chemistry

The study models biogenic carbon in construction wood products, but the available abstract reports no quantified net storage finding.

Stance not stated in abstract

Judged from abstract

Grade C · 0 citations

Peer-reviewed

Determining species- and tissue-sensitive biogenic carbon content in wood for LCA

D Von Dufving, Marijke Steeman, Liselotte De Ligne · 2026 · IOP Conference Series Earth and Environmental Science · doi:10.1088/1755-1315/1615/1/012015 · Mechanism / chemistry

The study quantifies species- and tissue-specific carbon content but does not establish net storage over a building service life.

Conference paper (not journal peer review)

Stance not stated in abstract

Judged from abstract

Grade D · 0 citations

Not peer-reviewed

Comparative life cycle assessment for two structural framing plan alternatives in a composite hybrid steel—cross laminated timber (CLT) building

Baiyu Chen, M. Eckelman, Michelle Laboy et al. · 2026 · Environmental Research: Infrastructure and Sustainability · doi:10.1088/2634-4505/ae368d · Mechanism / chemistry

The abstract describes CLT carbon storage as a potential benefit but provides no measured net storage result over service life.

Stance not stated in abstract

Judged from abstract

Grade C · 1 citations

Peer-reviewed

Life cycle assessment of an entirely wood floor system designed for carbon negativity, future adaptability, and end-of-life de/re/construction

Muzan Williams Ijeoma, Sovanroth Ou, Amin Nabati et al. · 2025 · Environmental Research: Infrastructure and Sustainability · doi:10.1088/2634-4505/adf665 · Mechanism / chemistry

The entirely wood floor system is explicitly designed for carbon negativity across adaptation and end-of-life stages.

Supports

Judged from abstract

Grade C · 1 citations

Peer-reviewed

LIFE CYCLE ASSESSMENT OF LOW CARBON SANDWICH PANELS WITH WOOD FIBRE CORE

Luana Tesch, Helena Gervásio, Hélder D. Craveiro · 2024 · ce/papers · doi:10.1002/cepa.3025 · Mechanism / chemistry

The study analyzes wood-fibre sandwich panels and biogenic carbon but reports no net storage result in the available abstract.

Stance not stated in abstract

Judged from abstract

Grade C · 0 citations

Peer-reviewed

Integrated sustainability assessment of wood building products: The case of larch and chestnut cascading systems in Northern Italy

Nuria Goldáraz-Salamero, Jorge Sierra-Pérez, Francesco Negro et al. · 2024 · The Science of The Total Environment · doi:10.1016/j.scitotenv.2024.175601 · Mechanism / chemistry

The study analyzes biogenic carbon and end-of-life scenarios for construction wood, but reports no directional finding.

Stance not stated in abstract

Judged from abstract

Grade B · 7 citations

Peer-reviewed

Forest dynamics in LCA: Integrating carbon fluxes from forest management systems into the life cycle assessment of a building

Camilla Marlene Ernst Andersen, Inge Stupak, Endrit Hoxha et al. · 2024 · Resources Conservation and Recycling · doi:10.1016/j.resconrec.2024.107805 · Mechanism / chemistry

The integrated method produced lower building greenhouse-gas estimates than static LCA, without isolating a net service-life storage benefit.

Stance not stated in abstract

Judged from abstract

Grade B · 12 citations

Peer-reviewed

Comparison of 16 national methods in the life cycle assessment of carbon storage in wood products in a reference building

C M Ouellet-Plamondon, M Balouktsi, L Delem et al. · 2024 · doi:10.1088/1755-1315/1363/1/012059 · Mechanism / chemistry

Full text: Results are method- and end-of-life-dependent: only some national assessments found net-negative balances, and the calculations did not account for service-life length or verify permanent storage. — “For the softwood beams, the assessments from Canada and New Zealand show a net negative biogenic CO2 balance considering phases A1-A3, A4-A5, and C1-C4.”

Also indexed as: doi:10.5445/IR/1000172840

Relevant – no direction

Judged from full text

Grade C · 0 citations

Peer-reviewed

Converting carbon vulnerable lands to wood plantations for use as building materials: Overall environmental performance and time-dependent assessment of carbon dioxide removals

Zhou Shen, Lorie Hamelin, Ligia Tiruta-Barna · 2023 · Journal of Cleaner Production · doi:10.1016/j.jclepro.2023.136040 · Mechanism / chemistry

The title indicates time-dependent carbon assessment of plantation wood used in buildings but states no net result.

Stance not stated in abstract

Judged from abstract

Grade B · 14 citations

Peer-reviewed

Carbon footprint assessment of a wood multi-residential building considering biogenic carbon

Claudiane Ouellet‐Plamondon, L Ramseier, Maria Balouktsi et al. · 2023 · Journal of Cleaner Production · doi:10.1016/j.jclepro.2023.136834 · Mechanism / chemistry

Full text: The analysis finds that timber stores biogenic carbon throughout its building service period, though this benefit is temporary unless carbon is permanently sequestered at end of life. — “For as long as the wood products are in service in a building, they lock biogenic carbon in, and buildings therefore function as carbon storage facilities.”

Supports

Judged from full text

Grade B · 72 citations

Peer-reviewed

The carbon costs of global wood harvests

Liqing Peng, Timothy D. Searchinger, Jessica Zionts et al. · 2023 · Nature · doi:10.1038/s41586-023-06187-1 · Mechanism / chemistry

The study characterizes wood harvest as imposing carbon costs and challenges accounting that portrays wood use as carbon-negative.

Contradicts

Judged from abstract

Grade A · 213 citations

Peer-reviewed

Comparative Study on Life-Cycle Assessment and Carbon Footprint of Hybrid, Concrete and Timber Apartment Buildings in Finland

Roni Rinne, Hüseyin Emre Ilgın, Markku Karjalainen · 2022 · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph19020774 · Mechanism / chemistry

The study assesses 50-year building carbon footprints, but the excerpt reports no finding on net biogenic carbon storage.

Found by citation chaining — cites doi:10.1016/j.egypro.2016.09.112

Stance not stated in abstract

Judged from abstract

Grade A · 111 citations

Peer-reviewed

Dynamic greenhouse gas life cycle inventory and impact profiles of wood used in Canadian buildings

Marieke Head, Annie Levasseur, Robert Beauregard et al. · 2020 · Building and Environment · doi:10.1016/j.buildenv.2020.106751 · Mechanism / chemistry

The title indicates dynamic greenhouse-gas assessment of wood in buildings but reports no directional carbon-storage finding.

Found by citation chaining — reference of doi:10.5334/bc.46

Stance not stated in abstract

Judged from abstract

Grade B · 69 citations

Peer-reviewed

GHG displacement factors of harvested wood products: the myth of substitution

Philippe LETURCQ · 2020 · Scientific Reports · doi:10.1038/s41598-020-77527-8 · Mechanism / chemistry

The study challenges substitution benefits and carbon neutrality, not whether construction products retain biogenic carbon during their service life.

Stance not stated in abstract

Judged from abstract

Grade B · 90 citations

Peer-reviewed

Comparative Life-Cycle Assessment of a High-Rise Mass Timber Building with an Equivalent Reinforced Concrete Alternative Using the Athena Impact Estimator for Buildings

Zhongjia Chen, Hongmei Gu, Richard D. Bergman et al. · 2020 · Sustainability · doi:10.3390/su12114708 · Mechanism / chemistry

The cradle-to-grave comparison bears on mass-timber carbon performance, but the excerpt provides no biogenic storage result.

Found by citation chaining — cites doi:10.1016/j.egypro.2016.09.112

Stance not stated in abstract

Judged from abstract

Grade A · 123 citations

Peer-reviewed

Carbon storage and CO2 dynamics from wood products harvested in Brazil during 1900–2016

Carlos Roberto Sanquetta, Margarida Tomé, Ana Cláudia Dias et al. · 2019 · Carbon Management · doi:10.1080/17583004.2019.1630242 · Mechanism / chemistry

The study evaluates Brazilian harvested-product stocks and fluxes, but the truncated abstract provides no findings about long-lived construction products.

Stance not stated in abstract

Judged from abstract

Grade C · 5 citations

Peer-reviewed

Modeling Carbon Sequestration In Harvested Wood Products

Laurel Bates · 2017 · NC Digital Online Collection of Knowledge and Scholarship (The University of North Carolina at Greensboro) · doi:10.71889/5fylantbak.29861492 · Mechanism / chemistry

The study tests credit sensitivity and decay models, but the available abstract reports no directional storage result.

Stance not stated in abstract

Judged from abstract

Grade C · 0 citations

Peer-reviewed

The effect of increasing lifespan and recycling rate on carbon storage in wood products from theoretical model to application for the European wood sector

Pau Brunet‐Navarro, Hubert Jochheim, Bart Muys · 2016 · Mitigation and Adaptation Strategies for Global Change · doi:10.1007/s11027-016-9722-z · Mechanism / chemistry

The model identifies longer product lifespans as a determining option for enhancing carbon stocks in wood products.

Supports

Judged from abstract

Grade B · 65 citations

Peer-reviewed

The Carbon Impacts of Wood Products

Richard D. Bergman, Maureen Puettmann, Adam Taylor et al. · 2014 · Forest Products Journal · doi:10.13073/fpj-d-14-00047 · Mechanism / chemistry

Wood products sequester atmospheric carbon and yield favorable carbon impacts compared with nonwood alternatives.

Supports

Judged from abstract

Grade B · 164 citations

Peer-reviewed

Carbon sequestration in LCA, a proposal for a new approach based on the global carbon cycle; cases on wood and on bamboo

Joost G. Vogtlander, Natascha M. van der Velden, Pablo van der Lugt · 2013 · The International Journal of Life Cycle Assessment · doi:10.1007/s11367-013-0629-6 · Mechanism / chemistry

The title proposes an LCA sequestration method for wood and bamboo but states no directional finding on construction-product storage.

Found by citation chaining — reference of doi:10.5334/bc.46

Stance not stated in abstract

Judged from abstract

Grade B · 111 citations

Peer-reviewed

Characterizing the Importance of Carbon Stored in Wood Products

Bruce R. Lippke, Jim Wilson, Jamie K. Meil et al. · 2010 · Wood and Fiber Science (Society of Wood Science and Technology) · Mechanism / chemistry

The life-cycle assessment includes wood in residential structures, but the available abstract omits its comparative carbon results.

Stance not stated in abstract

Judged from abstract

Grade C · 80 citations

Peer-reviewed

Forest management and carbon sequestration in wood products

Ingolf Profft, Martina Mund, Georg-Ernst Weber et al. · 2009 · European Journal of Forest Research · doi:10.1007/s10342-009-0283-5 · Mechanism / chemistry

The study quantifies carbon stocks and lifetimes of primary wood products, but the available abstract supplies no resulting values or direction.

Stance not stated in abstract

Judged from abstract

Grade B · 133 citations

Peer-reviewed

Effects on Carbon Storage of Conversion of Old-Growth Forests to Young Forests

Mark E. Harmon, William K. Ferrell, Jerry F. Franklin · 1990 · Science · doi:10.1126/science.247.4943.699 · Mechanism / chemistry

Even including carbon sequestered in wooden buildings, timber harvest produced a net atmospheric carbon dioxide flux.

Contradicts

Judged from abstract

Grade B · 819 citations

Peer-reviewed

Reviews and syntheses15 reviews — shown for context, never counted as directional studies or in the volume of evidence.
How this claim was searched27 records screened in the last search · 53 relevant · 4 relevant added via citation chaining
Records screened
27
Passed wood-domain rule
17
Relevant in pool
53
Relevant via citation chaining
4

Last search 2026-11-02 · WI-EV v1.7.0 · 0 new records added to the queue (0 from 0 citation-chain records, 0 from 13 IRG-WP documents). Every record passes the same wood-domain rule and relevance classifier; screened counts are unique records across all queries and sources.

Queries used (6)

  • Primary · biogenic carbon storage timber construction life cycle assessment EN 16449
  • harvested wood products carbon storage building
  • EN 16485 biogenic carbon timber
  • dynamic LCA biogenic carbon wood building
  • timber building carbon storage life cycle
  • wood construction carbon sequestration end of life

Sources: 16 open registries (primary query) · OpenAlex wood-domain search (all queries) · IRG-WP documents (all queries) · OpenAlex citation chaining

Excluded as not relevant51 studies removed from the pool and every score component. Kept here for audit with the reason.

Retaining Forest Biomass by Reducing Logging Damage

The study measures forest biomass retained through reduced logging damage, not carbon storage in timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2307/2389193

The Costs of Carbon Sequestration: A Revealed-Preference Approach

The study concerns forest growth as carbon sequestration, not carbon stored in long-lived timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1257/aer.89.4.994

Bioenergy Crops and Carbon Sequestration

Carbon sequestration by bioenergy crops concerns fuel feedstocks and soils, not long-lived timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1080/07352680590910393

Where are Europe’s last primary forests?

Mapping and conservation analysis of European primary forests does not examine timber construction or building-life carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1111/ddi.12778

Global meta‐analysis of wood decomposition rates: a role for trait variation among tree species?

Decomposition of woody debris in forests represents a different product and exposure from long-lived timber construction.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1111/j.1461-0248.2008.01259.x

Angiosperm wood structure: Global patterns in vessel anatomy and their relation to wood density and potential conductivity

Angiosperm vessel anatomy, density, and hydraulic conductivity do not address construction-product carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.3732/ajb.0900178

Forest management in southern China generates short term extensive carbon sequestration

Aboveground carbon gains from forest land-use changes do not test storage in timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1038/s41467-019-13798-8

The enduring world forest carbon sink

Global forest carbon uptake is measured without evaluating timber construction products over building service lives.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1038/s41586-024-07602-x

Forest Floor Characteristics within a Small Plot in Douglas‐Fir in Western Washington

Forest-floor mass, water, and nutrients beneath a plantation do not assess timber-product carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2136/sssaj1971.03615995003500060037x

Stand and Soil Changes Along A Mountain Hemlock Death and Regrowth Sequence

Forest ecosystem carbon changes after mountain hemlock death do not concern construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2307/1941019

Decomposition and nutrient release in Douglas-fir needle litter in relation to stand development

Needle-litter decomposition in forest stands is unrelated to carbon storage in timber buildings.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1139/x79-025

Accumulation of Organic Matter in a Series of Douglas-fir Stands

Stand biomass accumulation and wood productivity do not measure carbon retained in timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1139/x75-094

Conifer fine root and mycorrhizal root biomass within the forest floors of Douglas-fir stands of different ages and site productivities

Fine-root biomass in living Douglas-fir forests does not assess timber construction products or building-life carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1139/x83-065

Old‐Growth Pseudotsuga menziesii Communities of a Western Oregon Watershed: Biomass Distribution and Production Budgets

The work quantifies biomass and organic matter in old-growth forest communities rather than construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2307/1942174

Changes in Forest Floor Organic Matter and Nutrient Content Following Clear Cutting in Northern Hardwoods

The study examines forest-floor organic matter after clear-cutting, not building-product carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2307/1936666

Coarse Woody Debris in Douglas‐Fir Forests of Western Oregon and Washington

The study measures coarse woody debris in forests rather than carbon retained in timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2307/1941147

Carbon Dioxide Exchange Between Atmosphere and Ocean and the Question of an Increase of Atmospheric CO2 during the Past Decades

The study examines atmospheric-oceanic carbon dioxide exchange, using wood only for isotope evidence.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.3402/tellusa.v9i1.9075

Extension and validation of forest carbon flux model for dynamic Life Cycle Assessment

The work develops a managed-forest carbon flux model without specifically evaluating carbon storage in timber buildings.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1007/s11367-026-02695-0

Time dynamic climate impacts of a eucalyptus pulp product: Life cycle assessment including biogenic carbon and substitution effects

The assessed product is a pulp-based beverage carton rather than a long-lived timber construction product.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1111/gcbb.12894

Assembly history dictates ecosystem functioning: evidence from wood decomposer communities

The experiment concerns fungal decomposition and carbon release from wood in ecological communities, not construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1111/j.1461-0248.2010.01465.x

Evaluation of the environmental impacts of wood products for bio-energy through Life Cycle Assessment (LCA)

The work evaluates short-lived wood bioenergy and combustion emissions rather than timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14

From carbon neutral to climate neutral: Dynamic life cycle assessment for wood‐based panels produced in China

The study addresses dynamic climate accounting for wood-based panels without identifying them as long-lived building products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1111/jiec.13286

Prospective climate change impacts of Swiss forest management and wood utilization strategies by integrating biogenic carbon dynamics

The study evaluates national forest-management and wood-utilization strategies rather than timber storage over a building service life.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1016/j.resconrec.2025.108692

A Comparative Parametric Study on Dynamic Biogenic Carbon of Harvested Wood Products: Biomass Rotation Period vs. Product Lifetime

The study examines generic harvested wood product lifetimes without establishing results for timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.3390/en16073163

The Consequential Climate Impact of Bioenergy and Wood Products: A New Framework for the Assessment of Biogenic Carbon

The study develops a general biogenic-carbon accounting framework rather than testing long-lived timber construction products.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1111/gcbb.70169

Wood product carbon substitution benefits: a critical review of assumptions

The review evaluates substitution displacement factors, not biogenic carbon retained in timber products over building service life.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1186/s13021-021-00171-w

Advanced Timber Construction Industry: A Review of 350 Multi-Storey Timber Projects from 2000–2021

The review examines architectural typologies and structural systems rather than carbon storage or life-cycle climate performance.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.3390/buildings12040404

Wood buildings as a climate solution

The finding concerns avoided construction-phase emissions from material substitution, not biogenic carbon storage during building service life.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1016/j.dibe.2020.100030

Long‐term Coordination of Timber Production and Consumption Using a Dynamic Material and Energy Flow Analysis

The model analyzes regional timber production, consumption, waste, and energy flows without reporting building carbon-storage benefits.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1162/1088198042442342

Environmentally optimal wood use in Switzerland—Investigating the relevance of material cascades

The title concerns optimal wood-use cascades but states no finding about construction-product carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1016/j.resconrec.2017.12.026

A Vision for the Future

The paper discusses the preservation industry's future without evaluating carbon storage in long-lived timber construction.

Classifier · WI-EV v1.3.0 · 2026-10-14

Rates of emission from CCA-treated wood in the marine environment: measurement, modelling and requirements for further research

The study measures preservative leaching from marine wood rather than biogenic carbon storage in buildings.

Classifier · WI-EV v1.3.0 · 2026-10-14

Methods for improving preservative penetration into wood: a review

The review addresses preservative penetration into refractory wood, not biogenic carbon benefits over building service life.

Classifier · WI-EV v1.3.0 · 2026-10-14

Permethrin: A Critical Review of an Effective Wood Preservative Insecticide

The review concerns permethrin efficacy against wood-destroying organisms, not building-product carbon storage.

Classifier · WI-EV v1.3.0 · 2026-10-14

Extracellular mucilage (ECM) in wood decay basidiomycetes

The study examines fungal mucilage and biomass production, not biogenic carbon storage in timber construction.

Classifier · WI-EV v1.3.0 · 2026-10-14

Classification, Production, and Carbon Stock of Harvested Wood Products in China from 1961 to 2012

The study accounts for aggregate Chinese harvested wood products rather than carbon retained in timber buildings over their service lives.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.15376/biores.9.3.4311-4322

Carbon Stocks in Harvested Wood Products in Various Countries of the World

The study estimates national aggregate harvested-wood-product stocks without isolating long-lived timber construction products or building service lives.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.2488/jwrs.66.76

A review of structural, thermo-physical, acoustical, and environmental properties of wooden materials for building applications

The broad review title does not specifically establish biogenic carbon storage over a building service life.

Classifier · WI-EV v1.3.0 · 2026-10-14
doi:10.1016/j.buildenv.2016.12.033

Accounting for Biogenic Carbon and End-of-Life Allocation in Life Cycle Assessment of Multi-Output Wood Cascade Systems

The study concerns multi-output wood cascade systems rather than long-lived timber construction products over a building service life.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.1016/j.jclepro.2020.122795

A Summary of Life‐cycle Assessment Focusing on Embodied Carbon of Steel, Timber, and Concrete

The title addresses comparative embodied carbon without specifically testing biogenic storage over timber buildings’ service lives.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.1002/9781394300556.ch02

Life Cycle Assessment in Timber Construction and Existing Stock

The title mentions timber-construction LCA but does not identify biogenic carbon storage or service-life performance.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.11129/9783955536596-004

Balancing the green carbon cycle — Biogenic carbon within life cycle assessment

The paper evaluates general biogenic carbon accounting methods without establishing storage benefits for timber construction products.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.1007/s11367-025-02469-0

Strawbale buildings as carbon sinks: influence of the design and construction process on carbon emissions

No wood-domain term (wood, timber, lumber, softwood, hardwood, cladding or a species name) in title or abstract.

Wood-domain rule · WI-EV v1.2.0 · 2026-10-12
doi:10.1088/1755-1315/1363/1/012036

LCA standards for environmental product assessments in the bioeconomy with a focus on biogenic carbon: A systematic review

No wood-domain term (wood, timber, lumber, softwood, hardwood, cladding or a species name) in title or abstract.

Wood-domain rule · WI-EV v1.2.0 · 2026-10-12
doi:10.1007/s11367-024-02387-7

4. Life-cycle assessment

No wood-domain term (wood, timber, lumber, softwood, hardwood, cladding or a species name) in title or abstract.

Wood-domain rule · WI-EV v1.2.0 · 2026-10-12
doi:10.11129/9783955533953-005

Life-Cycle Assessment

No wood-domain term (wood, timber, lumber, softwood, hardwood, cladding or a species name) in title or abstract.

Wood-domain rule · WI-EV v1.2.0 · 2026-10-12
doi:10.1515/9783035608632-012

Policy implications of time-differentiated climate change analysis in life cycle assessment of building elements in Aotearoa New Zealand

The available abstract does not identify timber or wood among the assessed building assemblies.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.1007/s11367-025-02444-9

Cold-Press Manufacturing of Laminated Bamboo and Bamboo–Timber Composites for Sustainable Construction: A Life-Cycle Carbon Assessment

The assessment is cradle-to-gate and focuses primarily on laminated bamboo composites, not service-life timber storage.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.20944/preprints202604.1187.v1

Insulation Cork Boards—Environmental Life Cycle Assessment of an Organic Construction Material

The assessed construction product is cork insulation rather than timber.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.3390/ma9050394

Biogenic Carbon and Temporary Storage Addressed with Dynamic Life Cycle Assessment

The case study concerns a wooden chair rather than long-lived timber construction products.

Classifier · WI-EV v1.2.0 · 2026-10-12
doi:10.1111/j.1530-9290.2012.00503.x

Environmental potential of fungal insulation: a prospective life cycle assessment of mycelium-based composites

No wood-domain term (wood, timber, lumber, softwood, hardwood, cladding or a species name) in title or abstract.

Wood-domain rule · WI-EV v1.2.0 · 2026-10-12
doi:10.1007/s11367-023-02243-0

Stance classification is automated and reviewed against each record's own abstract; it is a reading of the literature, not a measurement. The Evidence strength is a rule-based function of indexed metadata under method WI-EV v1.7.0 and does not constitute proof of the statement.

Cite this claim

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APA
WoodIntel. (2026). Long-lived timber construction products deliver a net biogenic carbon storage benefit over the building service life. (Evidence Engine WI-EV v1.7.0, claim version 21). Retrieved 2026-11-02, from https://woodintel.io/evidence/timber-biogenic-carbon-storage
BibTeX
@misc{woodintel_timber_biogenic_carbon_storage_2026,
  title  = {Long-lived timber construction products deliver a net biogenic carbon storage benefit over the building service life.},
  author = {{WoodIntel}},
  year   = {2026},
  note   = {Evidence Engine WI-EV v1.7.0, claim version 21, accessed 2026-11-02},
  url    = {https://woodintel.io/evidence/timber-biogenic-carbon-storage}
}
Open API
curl https://woodintel.io/api/public/v1/evidence?claim=timber-biogenic-carbon-storage

Returns the score, the indexed studies with stance and grade, the contradictions, the timeline and the full revision history. Open under CC BY 4.0 — API documentation.