Congrats, Kyowamokuzai on your first EPDs

What launched in January

Kyowamokuzai now lists four current, product‑specific EPDs covering Structural Softwood Lumber, Finger‑Jointed Lumber, and two Laminated Wood declarations. The set reads as product‑family documentation rather than single SKUs, which is exactly how specifiers buy and substitute. All four were issued in January 2026 and published with EPD Hub.

Program operator and rulebook

These EPDs sit with EPD Hub under two rule sets. Two declarations reference EN 16485 for wood and wood‑based products, and two follow the operator’s Core PCR. For buyers that want scale and fast verification cycles, EPD Hub’s public library claims 4,000+ EPDs across categories, a sign your docs will be easy to find by project teams (EPD Hub, 2026).

Product scope in plain English

Think “families” instead of one‑off parts. The lumber entries cover structural sizes used in two‑by framing and platform construction. The laminated wood entries speak to finger‑jointed lamellas that are glued, graded, and finished for structural use. That scope keeps the EPD useful when a project changes dimensions late in design.

Why this matters in wood specs

On carbon‑counted projects, a product without a product‑specific EPD often gets modeled with conservative defaults. That nudges teams toward competitors who already publish. With these EPDs live, Kyowamokuzai shows up cleanly in submittal portals and in whole‑building LCA tools, so engineers can select cedar or cypress members without detours.

Quick competitive lens

Satsuma has two January 2026 EPDs for structural and finger‑jointed lumber under EN 16485. Coverage is comparable, which means Kyowamokuzai just neutralized a common short‑list filter in timber frames. Seihoku lists three January 2026 EPDs for structural plywood. Different product, same aisle in the spec library, and their presence has trained buyers to expect wood EPDs. Internationally, Thermory publishes several EPDs across thermally modified boards and glulam posts, so the wood category is visibly EPD‑literate already. Kyowamokuzai’s move puts them in that conversation rather than adjacent to it.

Company background, in brief

Kyowamokuzai is a vertically integrated domestic wood producer. The team sources, mills, dries, grades, and finishes Japanese cedar and cypress, then sells structural members and laminated products for residential and light‑commercial building. The pitch is simple. Dense grain from mountain growth, JAS‑aligned grading, and a deep bench of sizes that fit real framing plans.

Where to find the EPDs

As of February 5, 2026, we could not locate EPD download links on the company’s website. Visibility is key for spec teams pressed for time, so posting the PDFs on product pages and a central sustainability hub is the fastest way to turn curious clicks into saved‑to‑project folders. It’s definately worth it.

The takeaway for sales and spec

Kyowamokuzai has entered the transparency arena. In categories where Satsuma and Seihoku already show coverage, these EPDs level the playing field. In bids that screen by “product‑specific EPD available,” the door now opens without extra persuasion. Keep the momentum by ensuring the declarations appear in every channel specifiers search and by aligning future families to the same rule sets so renewals stay painless.