Reusing timber for a circular, low-carbon future: Challenges and the path forward
Open accessAbstract
Load-bearing timber is usually not reused in a second structural application after its first service life, not due to proven inadequacy, but largely because prevailing standards recognize only first-use material. When buildings are dismantled, the recovered timber is typically routed toward energy recovery, re- or down-cycling, or disposal, while functionally equivalent components for new construction are manufactured from newly harvested logs. The current regulatory framework favors virgin timber, even where reused elements could technically perform the same structural functions. Therefore, one of the primary barriers to structural timber reuse is the absence of codified pathways for qualification, certification, and market acceptance.
AI snapshot
Written from the paper’s full text.
TL;DR
Load-bearing timber is rarely reused structurally not because it is proven inadequate but because strength-grading and product standards recognize only first-use material, leaving no codified route to qualification, certification, or CE marking. The author argues the barrier is regulatory rather than technical, and that targeted standardization, procurement reform, and clearer waste-hierarchy policy are needed to move reuse from niche to mainstream.
Key findings
No original data are reported; the piece is an argument. Its claims are:
- Recovered timber from dismantled buildings is typically routed to energy recovery, re- or down-cycling, or disposal, while functionally equivalent new components are made from newly harvested logs.
- Technical obstacles to reuse are real — variable dimensions and mechanical properties, unknown prior service conditions, possible hidden defects (citing Derikvand and Fink 2023) — but are "increasingly manageable" via non-destructive testing, probabilistic grading, and selective deconstruction.
- The decisive barrier is that current strength-grading and product standards rely on statistical property distributions tied to known species, growth regions, and production control, which reused timber (mixed species/origin, inconsistently documented, or graded under outdated rules) does not fit; there is currently no codified route for reused timber to be strength-graded and CE-marked.
- Proposed path forward: adapt existing supporting standards via adjustment factors, tolerance classes, and approved non-destructive testing routes; pursue a harmonized standard for strength-graded reused timber; have LCA frameworks and Environmental Product Declarations credit documented reuse; and draw a clear policy distinction between reuse, recycling/down-cycling, and energy recovery.
Methods
Not stated in the paper; this is a short perspective/editorial (BioResources 21(2), 2771–2773) rather than an empirical study, with no sample, dataset, or analysis described.
- The argument is supported by reference to prior work, including Derikvand and Fink (2023) on reusing salvaged wood in dowel laminated timber, Derikvand and Khoshroodi (2025) on shear capacity of reclaimed timber connections, and Pasca et al. (2025) on visual-based classification models for grading reclaimed structural timber.
Limitations
The paper states no limitations. Evident from the text: it presents no quantitative evidence for its central environmental claim, explicitly conceding that "the scale of these benefits varies with species, processing paths, and application"; and it offers no cost, feasibility, or implementation analysis for the proposed standardization and procurement changes, which are asserted rather than tested.
Model-written summary. Check it against the paper before relying on it.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
1 of 3 cited sources checked · 0 supported · 0 flagged · accuracy not yet measured
- Interpretationreasoning§ Abstract
Structurally sound timber is systematically excluded from high-value structural reuse as a result of the standards framework.
“As a result, structurally sound timber is systematically excluded from high-value structural reuse.”
Quote in the paperSubstantial claim- Rests on an assumption: Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
- Interpretationreasoning§ Abstract
Even partial substitution of newly sawn timber with verified reused elements would yield disproportionate environmental benefits, given the high material intensity of primary wood processing.
“Even partial substitution of newly sawn timber with verified reused elements would yield disproportionate environmental benefits, given the high material intensity of primary wood processing.”
Quote in the paperNot a substantial claim- Rests on an assumption: Often only a small volume of each harvested log can be converted into structural products.
- Interpretationreasoning§ Abstract
Until standards explicitly accommodate reused timber, reuse will remain marginal by design.
“This reflects procedural constraints and until standards explicitly accommodate this, reuse will remain marginal by design.”
Quote in the paperSubstantial claim - Interpretationreasoning§ Abstract
Without recognition of documented reuse in life-cycle assessment frameworks and Environmental Product Declarations, economic incentives will continue to favor primary production despite higher environmental costs.
“Without such recognition, economic incentives will continue to favor primary production despite higher environmental costs.”
Quote in the paperNot a substantial claim - Premisecitation§ Abstract
Several research initiatives have already demonstrated viable grading methodologies for reused timber.
“Several research initiatives have already demonstrated viable grading methodologies for reused timber (Pasca et al. 2025).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Pasca et al. 2025 source
- Interpretationreasoning§ Abstract
Currently, there is no codified route for reused timber to be strength-graded and CE-marked.
“Currently, there is no codified route for reused timber to be strength-graded and CE-marked.”
Quote in the paperSubstantial claim- Rests on an assumption: Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
- Interpretationcitation§ Abstract
In the absence of codified routes, reused timber faces significant barriers to circulation in mainstream markets, regardless of its demonstrated performance.
“In the absence of such routes, reused timber faces significant barriers to circulation in mainstream markets, regardless of its demonstrated performance (Derikvand and Khoshroodi 2025).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Derikvand and Khoshroodi 2025 source
- Interpretationreasoning§ Abstract
The major barrier to structural timber reuse is regulatory rather than technical.
“The major barrier is regulatory rather than technical.”
Quote in the paperSubstantial claim- Rests on an assumption: Advances in non-destructive testing, probabilistic grading approaches, and selective deconstruction techniques demonstrate that structural reuse is technically feasible at scale.
- Interpretationreasoning§ Abstract
The current regulatory framework favors virgin timber, even where reused elements could technically perform the same structural functions.
“The current regulatory framework favors virgin timber, even where reused elements could technically perform the same structural functions.”
Quote in the paperNot a substantial claim- Rests on an assumption: Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
- Interpretationreasoning§ Abstract
One of the primary barriers to structural timber reuse is the absence of codified pathways for qualification, certification, and market acceptance.
“Therefore, one of the primary barriers to structural timber reuse is the absence of codified pathways for qualification, certification, and market acceptance.”
Quote in the paperSubstantial claim- Rests on an assumption: A large volume of timber in construction waste is structurally sound but is not treated as a reusable structural resource.
- Rests on an assumption: Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
- Rests on an assumption: When buildings are dismantled, recovered timber is typically routed toward energy recovery, re- or down-cycling, or disposal, while functionally equivalent components for new construction are manufactured from newly harvested logs.
- Interpretationreasoning§ Abstract
The main limiting factor for structural timber reuse is not knowledge, but codification.
“The main limiting factor is not knowledge, but codification.”
Quote in the paperSubstantial claim - Interpretationreasoning§ Abstract
Without these systems in place, structurally sound timber will continue to be excluded from primary load-bearing applications regardless of its verified capacity.
“Without these systems in place, by default, structurally sound timber will continue to be excluded from primary load-bearing applications regardless of its verified capacity.”
Quote in the paperNot a substantial claim - Interpretationreasoning§ Abstract
Without harmonization, reuse could remain fragmented, localized, and confined to low-risk or non-structural applications.
“Without harmonization, reuse could remain fragmented, localized, and confined to low-risk or non-structural applications.”
Quote in the paperNot a substantial claim - Interpretationreasoning§ Abstract
Reusing timber can preserve not just material volume, but the embodied effort already invested in harvesting, transport, sawing, drying, and strength grading.
“Reusing timber can preserve not just material volume, but the embodied effort already invested in harvesting, transport, sawing, drying, and strength grading.”
Quote in the paperSubstantial claim - Interpretationreasoning§ Abstract
Each verified reused element can offset a cascade of upstream processes that would otherwise be repeated for new supply.
“Therefore, each verified reused element can offset a cascade of upstream processes that would otherwise be repeated for new supply.”
Quote in the paperSubstantial claim
- May combine two claims. 4
- Classified as probably not a substantial claim. 7
May combine two claims.
Premisecitation§ AbstractReused timber presents real technical challenges: dimensions and mechanical properties are variable, prior service conditions may be unknown, and hidden defects are possible.
“Reused timber presents real technical challenges. Dimensions and mechanical properties are variable, prior service conditions may be unknown, and hidden defects are possible (Derikvand and Fink 2023).”
Quote in the paperSubstantial claim1 of 1 sources checked- cites Derikvand and Fink 2023 source
Section 2, “Potentials and Challanges,” describes variability in dimensions and mechanical properties, typically unknown prior load histories, and common damage such as holes and cracks. It does not say that defects may be hidden, so that part of the claim is not supported by our copy. (LLM, conf=0.84)
Experimental — accuracy not yet measured
Probably not a substantial claim: may not pass S4 (based).
Interpretationreasoning§ AbstractIntegrating reused timber into strength-grading standards would place it on equal regulatory footing with new wood.
“Integrating reused timber into strength-grading standards would place it on equal regulatory footing with new wood.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable).
Interpretationreasoning§ AbstractReuse will not scale through advocacy alone.
“However, reuse will not scale through advocacy alone.”
Quote in the paperNot a substantial claimMay combine two claims.
Interpretationreasoning§ AbstractVerified structural reuse of timber can reduce demand for new material and associated emissions, making reuse one of the most effective options for a circular construction value chain.
“While the scale of these benefits varies with species, processing paths, and application, the underlying principle is that verified structural reuse of timber can reduce demand for new material and associated emissions, making reuse one of the most effective options for a circular construction value chain.”
Quote in the paperSubstantial claim- Rests on an assumption: A large volume of timber in construction waste is structurally sound but is not treated as a reusable structural resource.
Probably not a substantial claim: may not pass S2 (checkable).
Interpretationreasoning§ AbstractUnlocking structural timber reuse requires targeted standardization.
“Unlocking structural timber reuse requires targeted standardization.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable), S4 (based).
Interpretationreasoning§ AbstractReuse requires explicit recognition in standards, procurement rules, and certification systems.
“It requires explicit recognition in standards, procurement rules, and certification systems.”
Quote in the paperNot a substantial claimMay combine two claims.
Interpretationreasoning§ AbstractLoad-bearing timber is usually not reused in a second structural application after its first service life, largely because prevailing standards recognize only first-use material, not due to proven inadequacy.
“Load-bearing timber is usually not reused in a second structural application after its first service life, not due to proven inadequacy, but largely because prevailing standards recognize only first-use material.”
Quote in the paperNot a substantial claim- Rests on an assumption: A large volume of timber in construction waste is structurally sound but is not treated as a reusable structural resource.
- Rests on an assumption: Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
- Rests on an assumption: When buildings are dismantled, recovered timber is typically routed toward energy recovery, re- or down-cycling, or disposal, while functionally equivalent components for new construction are manufactured from newly harvested logs.
May combine two claims.
Interpretationreasoning§ AbstractReused timber does not fit the current strength-grading framework because it is often mixed in species and origin, inconsistently documented, or previously graded under outdated rules.
“Reused timber does not fit this framework as it is often mixed in species and origin, inconsistently documented, or previously graded under outdated rules.”
Quote in the paperSubstantial claim- Rests on an assumption: Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
Probably not a substantial claim: may not pass S2 (checkable), S4 (based).
Interpretationreasoning§ AbstractThe structural reuse of timber has the potential to convert what is often treated as a low-value material into a reliable construction resource.
“The structural reuse of timber has the potential to convert what is often treated as a low-value material into a reliable construction resource.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing), S4 (based).
Interpretationnone given§ AbstractBeyond carbon savings, reuse can also preserve cultural value when timber recovered from historic buildings is re-embedded in contemporary structures.
“Beyond carbon savings, reuse can also preserve cultural value, when timber recovered from historic buildings is re-embedded in contemporary structures.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable).
Interpretationreasoning§ AbstractWith new or revised systems, structural reuse of timber can move from a niche practice to a normalized component of a circular construction future.
“With new or revised systems, structural reuse of timber can move from a niche practice to a normalized component of a circular construction future.”
Quote in the paperNot a substantial claim
The paper relies on this without support.
A large volume of timber in construction waste is structurally sound but is not treated as a reusable structural resource.
“In addition to other materials, this waste consists of a large volume of timber that is structurally sound but is not treated as a reusable structural resource.”
The paper relies on this without support.
Often only a small volume of each harvested log can be converted into structural products.
“Often only a small volume of each harvested log can be converted into structural products.”
The paper relies on this without support.
Advances in non-destructive testing, probabilistic grading approaches, and selective deconstruction techniques demonstrate that structural reuse is technically feasible at scale.
“Advances in non-destructive testing, probabilistic grading approaches, and selective deconstruction techniques demonstrate that structural reuse is technically feasible at scale.”
The paper relies on this without support.
Current strength-grading and product standards are explicitly written for new timber, relying on statistical property distributions tied to known species, growth regions, and production control.
“Current strength-grading and product standards are explicitly written for new timber, where they rely on statistical property distributions tied to known species, growth regions, and production control.”
The paper relies on this without support.
When buildings are dismantled, recovered timber is typically routed toward energy recovery, re- or down-cycling, or disposal, while functionally equivalent components for new construction are manufactured from newly harvested logs.
“When buildings are dismantled, the recovered timber is typically routed toward energy recovery, re- or down-cycling, or disposal, while functionally equivalent components for new construction are manufactured from newly harvested logs.”
Cites
Pasca, D. P., Aloisio, A., De Santis, Y., Burkart, H., & Øvrum, A. (2025) · Engineering Structures · doi:10.1016/j.engstruct.2024.119218 · Cited by 15 · cited 1× · see citing works
“Several research initiatives have already demonstrated viable grading methodologies for reused timber (Pasca et al .”
Derikvand, M., & Khoshroodi, D. B. (2025) · Construction and Building Materials · doi:10.1016/j.conbuildmat.2025.144613 · Cited by 5 · cited 1× · see citing works
“In the absence of such routes, reused timber faces significant barriers to circulation in mainstream markets, regardless of its demonstrated performance (Derikvand and Khoshroodi 2025).”
Self-citationDerikvand, M., & Fink, G. (2023) · World Conference on Timber Engineering (WCTE 2023) · doi:10.52202/069179-0092 · Cited by 2 · see citing works
Self-citation
Flagged first, then by citations
Cited by
Sorted by citations
Derikvand, M., Srejić, O., Schwarzkopf, M., & Mrissa, M. (2026) · Construction and Building Materials · doi:10.1016/j.conbuildmat.2026.148132
Self-citation
- Authors
- InnoRenew CoE, U. I. &. U. F., & Derikvand, M.
- Corresponding author
- Derikvand, Mohammad
- ORCID
- Derikvand, Mohammad
- Venue
- BioResources
- Publisher
- BioResources
- Published
- 2026
- Volume
- 21
- Issue
- 2
- Pages
- 2771-2773
- ISSN
- 1930-2126 (ISSN-L)
- OpenAlex
- W7127286039
- Semantic Scholar
- b4c243c6037319c279b8a0b8bb56ca9eca90eba2
- Cited by
- 1
- References
- 3
- Citations by year
- 2026: 1
- FWCI
- 3.23
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- BioResources (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Physical Sciences › Engineering › Building and Construction › Wood Treatment and Properties
- Social Sciences › Business, Management and Accounting › Strategy and Management › Sustainable Supply Chain Management
- Life Sciences › Agricultural and Biological Sciences › Forestry › Agricultural and Food Sciences
- Keywords
- circular economy, low-carbon construction, building dismantling, timber certification, material qualification, regulatory framework, energy recovery, market acceptance
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
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Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-18.
Cited sources are checked by gpt-6-sol.
Statistics and arithmetic are recomputed, not judged.
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