EPDs for Mass Timber in the United States
Planning a CLT, glulam, or mass plywood panel launch and need an EPD that actually wins specs in 2026? Here is the full picture for mass timber manufacturers in the United States, distilled from the public registry most specifiers consult. We surface who is publishing, which program operators and PCRs dominate, and where expiries will bite.
The 2026 snapshot for US mass timber EPDs
The category is active but concentrated. Over the last five years there are 10 currently valid EPDs across 4 manufacturers, handled by 3 program operators and based on 4 distinct PCRs. The most recent publication is Mercer Conway Cross‑laminated Timber from Mercer Mass Timber on Mar 13, 2025, verified by ASTM International under Part B: Structural and Architectural Wood Products, with an expiry on Mar 13, 2030.
Manufacturers showing up
Four names carry all current declarations. Sterling Structural leads with 4 EPDs. Mercer Mass Timber, SmartLam NA, and Vaagen Timbers each hold 2 EPDs. For a buyer scanning submittals this reads as a short list, which means any new product with a solid, third‑party verified EPD can stand out quickly.
Program operators used, and how concentrated they are
Three operators share the work. ASTM International accounts for 4 EPDs across 2 manufacturers. EPD Hub accounts for 4 EPDs across 1 manufacturer. SCS Global Services accounts for 2 EPDs across 1 manufacturer. That split is 40 percent, 40 percent, and 20 percent respectively. Diversity matters because it signals where reviewers are already comfortable and how fast your publication could clear reviews.
The PCRs that shape results, plus the expiry watchlist
Think of PCRs as the rulebook everyone agrees to before the game begins. In mass timber, one Part B drives half the market today while an operator‑specific core PCR is close behind. Upcoming expiries cluster in two waves.
| PCR | EPDs | Latest expiry |
|---|---|---|
| Part B: Structural and Architectural Wood Products | 5 | Mar 13, 2030 |
| EPD Hub Core PCR version 1.0, Feb 1, 2022 | 4 | Nov 11, 2027 |
| PCR for Building‑Related Products and Services Part A | 1 | Jan 22, 2026 |
Expiry outlook for the next five calendar years shows where renewals will stack up.
- 2026: 4 total expiring, including 1 under Part A on Jan 22 and 3 under Part B between Jan 22 and Apr 15.
- 2027: 4 total, all under EPD Hub Core PCR v1.0 on Nov 11.
- 2028: 0 total.
- 2029: 0 total.
- 2030: 2 total, both Part B on Mar 13.
If you plan a new cross laminated timber or glulam EPD in 2026, aligning to widely used Part B can ease comparability, while monitoring revisions to keep renewal timing clean. A great partner will check competitor PCR choices before you lock scope.
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Issuance cadence since 2021
Two early bursts then a lull, followed by a 2025 return. This pattern often reflects capacity shifts and retooling rather than demand.
| Year | EPDs issued |
|---|---|
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 2 |
How often EPD consultants are involved
Nine out of ten EPDs were published with the help of an external EPD consultant or service provider. That is 90 percent of the set. For complex, multi‑site timber operations this makes sense because the data wrangling burden is real and deadlines are unforgiving. If you prefer a white‑glove path, a specialist like Parq can take the heaviest lifts while your team focuses on production and engineering. It is not about bargain pricing, it is about speed, ease, and completeness.
Notably absent US manufacturers
Based on the same registry as of Jan 23, 2026, two sizable US producers appear to lack current, product‑specific mass timber EPDs.
- DR Johnson Wood Innovations shows no current wood product EPDs in the registry after filtering for wood MasterFormat codes. Historical activity exists, but current listings are not present.
- Freres Lumber Company, known for Mass Plywood Panel, shows historical EPDs that have expired and no current entries.
Teams evaluating these brands for projects that require product‑specific declarations should verify status directly with the manufacturer. It is also possible that a new EPD is underway or that a sepcific product was filed under a different category.
What this means for your 2026 plan
- If you are launching CLT or glulam, Part B remains the most comparable path today. It also carries the longest visible runway to 2030 for some declarations.
- If your competitor’s EPD expires in 2026 or 2027, timing your publication can create a clean comparison window in submittals. Renewals often require updated data and can briefly leave gaps.
- If you produce MPP or hybrid systems, confirm PCR fit early. The right rulebook is the difference between apples‑to‑apples and a footnote no one values.
Publish smart, not slow
Pick a program operator that your customers and reviewers already trust in your sub‑sector. ASTM, EPD Hub, and SCS are all actively publishing current mass timber EPDs in the United States. The fast lane is built on organized plant data, a clear PCR choice, and a partner who keeps reviewers fed with complete evidence on the first pass.
Want the full dataset or a quick consult
I am happy to share the complete, up‑to‑date background dataset behind this article and talk through the best‑fit PCR and operator choice for your products. Connect with me on LinkedIn and send a note. We can also hop on a short call to map your next steps.
Note on data freshness: this analysis uses the global public registry that most architects and specifiers consult. Due to normal loading delays, some EPDs from the final half of 2025 may not yet be visible, and will roll into the dataset as registries update.
Frequently Asked Questions
Which program operators are most active for US mass timber EPDs right now?
ASTM International and EPD Hub each account for 4 current EPDs, and SCS Global Services accounts for 2. That split is 40%, 40%, and 20% of the current set.
Which PCR should a new CLT or glulam EPD use in 2026?
Part B: Structural and Architectural Wood Products is the most used and offers strong comparability. EPD Hub Core PCR v1.0 is also common. Confirm fit against your product scope before committing.
When do the next expiries bunch up?
Four EPDs expire in 2026 and four in 2027. There are none in 2028 and 2029, and two in early 2030.
Do most manufacturers use an external EPD consultant?
Yes. 9 of the 10 current EPDs involved an external EPD consultant or service provider, which indicates manufacturers prefer to outsource the heavy data collection and verification workflow.
What if my competitor lacks a current EPD?
There is an opportunity to be the only product‑specific, third‑party verified mass timber EPD in your competitive set. That often improves spec odds where product‑specific declarations are required.
About the Author
With a passion for sustainability and a love for complex data, Toby helps manufacturers efficiently collect data from across their organization and get their EPDs done right. He’s especially interested in how AI can support human expertise, helping R&D and factory teams work faster, smarter, and with less friction.
