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All profiles in stock  •  Lead times 2–4 weeks across the US & Canada

Thermally modified pine tongue-and-groove cladding facade

Cladding

A facade that keeps its lines.

Half the seasonal movement of untreated wood means joints stay tight and shadow lines stay straight — the two things a wood facade is judged on.

Profiles

Six profiles, drawn in section.

These are the actual milled sections. Pick a profile for pricing, coverage, and species options — or send your own drawing and we grind the knives.

TG-STriple thermowood profile section drawing

TG-STriple

Triple shadow-line T&G, 3/4″ — Pine, Radiata, Ayous

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TG-Triple thermowood profile section drawing

TG-Triple

Triple shadow-line T&G, 1″ — Pine

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TG-Lap thermowood profile section drawing

TG-Lap

Shiplap reveal — Pine 3/4″

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TG-I thermowood profile section drawing

TG-I

Flush-face T&G — Pine, Radiata, Ayous

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TG-V thermowood profile section drawing

TG-V

V-groove T&G — Pine, Radiata, Ayous

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RS60 thermowood profile section drawing

RS60

Open-joint rainscreen, 60° — Pine 1″

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Need a different profile? We grind custom knives for a flat tooling charge. Send a drawing

More options

Three ways to build a wall.

IN STOCK

01

Tongue & groove

TG profiles

TG-STriple, TG-Triple, TG-Lap, and TG-I/U/V/W in 3/4″ and 1″ pine, plus radiata and ayous. Three shadow lines per board on the triples, blind-nailed, weather-tight.

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IN STOCK

02

Battens & screens

Dimensional stock

1×4 and 2×4 thermowood for battens, screens, slat walls, and soffit runs — the same Thermo-D pine, straight and stable.

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MILLED TO ORDER

03

Open joint & rainscreen

Your profile

Send your own section drawing — shiplap reveals, open-joint rainscreens, matched historical profiles. We grind the knives for a flat tooling charge and keep them on file.

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Weathering

Honey now, silver later.

The roast color runs through the full thickness of the board — it’s the result of the 212 °C treatment, not a stain. Cut it, sand it, rout it: the color is still there.

Left uncoated, the honey-brown face weathers to an even silver-grey patina over the first year or two. That’s expected weathering, not a defect — and many architects spec it on purpose.

Want to keep the roast tone? A UV-protective oil every few years holds the color. Either way, the rot resistance never depends on the finish.

Fresh-milled thermowood beside weathered silver-grey cladding

Installation

Standard carpentry, three rules.

Any carpenter who has hung wood siding can hang thermowood. Ventilate behind the boards, use stainless fasteners, and seal cut ends. That’s the whole list.

Every bundle ships with an installation sheet, and if your crew hits something unusual on site, the people who milled the boards answer the phone.

Cladding program

Profiles in stockTG-STriple, TG-Triple, TG-Lap, TG-I/U/V/W
Face width5-1/2″
SpeciesPine, radiata, ayous
Rainscreen / open jointMilled to order
Custom toolingFlat charge per profile
Lead time2–4 weeks

Send square footage and a profile — or just a drawing — and we’ll price your facade within one business day.