Overall, Thermal Modified Lumber requires more precise handling than unmodified lumber.
as it is more susceptible to mechanical damage due to its strength properties.

Woodworking project in progress with a light-colored wooden piece, visible nails, and wood grain, situated on a workbench in a workshop or construction setting.

real wood, naturally enhanced, with no two pieces exactly alike

real wood, naturally enhanced, with no two pieces exactly alike

Fastening

  • Use Stainless Steel Fasteners!

    Thermowod is slightly more acidic, which increases the corrosiveness of metal fasteners.

    Non-stainless steel fasteners can corrode and cause rust, which reacts with the remaining mineral content, causing it to break down & decay.

  • It is recommended to use Titebond III when gluing Thermal Modified Lumber

Side-by-side comparison of two wooden sheds with doors and plants in front, one weathered and gray, the other new and stained.
Close-up of a polished wooden table with visible wood grain and a few small chips or scratches.

Sealing

  • Our professional recommendation for sealing high-traffic thermal-modified products is to use Concerte Garage Floor Clear Coat

    For exterior applications, finishes with UV protection can help preserve the rich tones, while Clear Oils or Natural Sealers allow the wood to age gracefully into a soft silver patina.

    Interior uses benefit from a simple, clear coat that highlights the wood’s natural character and color depth.
    By embracing these variations, you celebrate what makes Thermally Modified Lumber truly special

Maintaining

    • Airborne bacteria or impurities in rain may cause mold on untreated surfaces.

      This is superficial & can be easily removed by simply scraping, sanding, or pressure washing the surface

    • This can be removed by simply sanding or pressure washing

A close-up image of a circular saw blade cutting through wood in a woodworking shop.

Chopping

  • Use of fine-tooth blades prevents chipping.

Close-up of a vintage hand plane tool on a wooden surface, with wood shavings and dust around it.

Milling & Planing

  • Convex facing down requires a single narrow wheel positioned in the center of the board

  • Convex facing up requires two wheels along the edge of the board when being milled/planned.