Thermally modified interior wall paneling in ten species
Feature walls, hallways and ceilings in heat-and-steam treated Ash, Ayous, Iroko, Pine, Western Red Cedar, VG Hemlock, Shou Sugi Ban style, Rhino Wood and reclaimed barn wood. Thirteen milled profiles, no chemical preservatives, milled to order in the USA.
Thermally modified wood
Ten species, thirteen profiles, one chemical-free process.
Thermal modification drives the sugars and moisture out of the wood, so interior boards stay flat through heating seasons and never off-gas resin. Pick a species for its look: pale Ayous for a quiet wall, Iroko for golden depth, charred-look Shou Sugi Ban style for drama, or reclaimed barn wood for texture.
paneling
Flat, stable boards
Knot-free options
Charred look, no soot
Resin-free indoors
Why specify thermowood paneling
Paneling that stays true on the wall
Heat and steam permanently change the cell structure of the wood: it takes on far less moisture, resists insects and decay, and loses the sugars and resins that make ordinary boards cup and bleed. Indoors that means panels that stay straight, take finish evenly and keep their colour. Every board is milled to the thickness, width and profile the project calls for.
10 species in stock
From pale Ayous to black Shou Sugi Ban style and weathered barn wood.
13 milled profiles
Shiplap, T&G, channel and open-joint faces, all sized for hidden fixing.
Fire-retardant option
Treatment backed by ASTM and ULC test reports, by species and profile.
Milled to order
Thickness, width and profile cut to your spec from our California yard.
Profiles, species
Thirteen profiles, ten species
Opus, Ventura, Lux, Silva, Ventus, Terra, Fortis, Serensus, Aqua, Luna, Veritas, Solis and Vivus profiles from 9/16 in to 1-5/8 in thick, in Ash, Ayous, Iroko, Western Red Cedar, Knotty Pine, Radiata Pine, Shou Sugi Ban style, VG Hemlock, Rhino Wood and reclaimed barn wood.
Iroko feature wall
Shou Sugi Ban style
Heat and steam only, no chemicals, made in the USA
Thermal modification uses only heat and steam. Our thermowood is sourced from certified renewable forests and manufactured in the USA; the boards are 100% natural, fully recyclable and can go to bio-energy at end of life.
Bold grain
Thermally modified Ash
Ash gives an open, pronounced grain that reads clearly across a wall. Leave it natural for a warm brown or oil it to hold the tone; it will weather to silver-grey only if left outside.
Pale and quiet
Thermally modified Ayous
Ayous (obeche) is a pale, lightweight hardwood with low thermal conductivity, so it stays cool to the touch. Resin-free after modification, it is our go-to for sauna rooms and clean minimalist walls.
Golden hardwood
Thermally modified Iroko
Iroko is a dense African hardwood with a golden-brown colour that deepens with age. Hard-wearing enough for hallways, lobbies and anywhere panels get touched.
Western Red Cedar
Warm honey to sienna, natural oils
VG Hemlock
Tight, straight vertical grain
Rhino Wood
Densified, extremely hard
Reclaimed barn wood
Weathered character, varies by lot
Species
10
Profiles
13
Thickness
9/16 to 1-5/8 in
Made in
USA
Standard profiles
Sizes and drawings
Standard board sizes for thermally modified Ash, Ayous, Iroko, Pine, Western Red Cedar, VG Hemlock, Shou Sugi Ban style and Rhino Wood. Every order is milled to the thickness, width and profile the project needs.
| Thickness | Width | Length |
|---|---|---|
| 13/16″ | 3-5/8″, 4-13/16″, 5-9/16″ | 2.6 to 9.8 ft |
| 1″ | 3-5/8″, 4-13/16″, 5-9/16″ | 2.6 to 9.8 ft |
| 1-5/8″ | 3-5/8″, 4-13/16″, 5-9/16″ | 2.6 to 9.8 ft |
A fire-retardant treatment backed by ASTM and ULC test reports is available on request; classification depends on species, profile and application.
Thickness: 1-5/8"
Width: 3-3/4" to 4-3/4"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 1"
Width: 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 1-1/8" to 1-1/4"
Width: 4-5/8" to 4-3/4"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 1"
Width: 3-3/4" to 4-3/4"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)
Paneling questions
Common questions
Installation guides for paneling and cladding are on our guides page.