Hardwood presence
A deeper grain and denser feel for high-visibility applications.
Maximo · Fraxinus spp.
Thermally Modified Ash
Hardwood grain with the stability demanded by exterior design.
Thermally modified Ash offers a denser hardwood feel and pronounced grain. It works across walls, ceilings, cladding, and selected decking details when the specified profile and installation system are confirmed.
OriginNorth America and Europe
ColorRich brown with pronounced grain
Best forCladding, ceilings, feature walls, selected decking
ProcessHeat + steam, no added preservatives
Profiles & Availability
Profile options for Ash.
Use this list to plan the application, then confirm current dimensions, lengths, quantities, and custom-milling availability with the serving branch.
ProfileNominal sizeTypical applications
Tongue & Groove1 × 4Ceilings, soffits, feature walls
Tongue & Groove1 × 6Walls and ceilings
S4S / E4E1 × 6 and 5/4 × 6Selected decking and trim
Rainscreen1 × 6 and customExterior cladding
Why Specify It
Real wood, improved for architectural applications.
Better moisture response
Thermal modification improves stability as humidity changes.
Broad application range
Useful across vertical, overhead, and selected walking surfaces.
Available profiles and lead times vary by branch and project. Final selections are confirmed in the Lumber Plus quote.
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