Thermo Ash
Bold cathedral grain engineered by our Thermo Vacuum System for outstanding stability and a rich, dark tone.
- Exterior cladding & decking
- Luxury fencing
- Interior walls, beams & custom millwork
Build boldly with sustainable, high-performance wood, engineered for modern design and built to outlast softwoods.
Through advanced, chemical-free processes such as thermal modification, acetylation, or furfurylation, these products gain:
Against rot, decay, and insects.
For cleaner lines and fewer callbacks.
With FSC® certification and non-toxic performance.
With deep, rich tones that evolve with time.
Bold cathedral grain engineered by our Thermo Vacuum System for outstanding stability and a rich, dark tone.
Ultra-lightweight hardwood transformed into a rich honey-brown, highly stable and moisture-resistant board.
"The African Teak" — golden brown with natural durability, enhanced by TVS for top-tier decks and facades.
A versatile option for outdoor use with a smooth, golden tone.
Light, clean-grained, and dimensionally reliable.
Durable, rich in color, ideal for high-traffic decking or feature cladding.
Sustainably sourced and naturally beautiful.
Excellent value for exteriors and interiors.
Lightweight, low-maintenance, and Cradle to Cradle™ certified.
Transformed into hardwood-like performance.
| Product | Best For | Durability | Stability | Warranty | Price Tier |
|---|---|---|---|---|---|
| Durathermo Ayous | Cladding, Ceilings | ★★★★★ | ★★★★★ | 25 yrs | $$ |
| Durathermo Ash | Decking, Cladding | ★★★★★ | ★★★★★ | 25 yrs | $$$ |
| Lunawood Pine | Cladding | ★★★★★ | ★★★★★ | 15 yrs | $$ |
| Arbor Wood Ash | Cladding, Decking | ★★★★★ | ★★★★★ | 25 yrs | $$$ |
| Accoya | Premium Projects | ★★★★★ | ★★★★★ | 50 yrs | $$$$ |
| Kebony | Luxury Decking | ★★★★★ | ★★★★★ | 30 yrs | $$$$ |
A look at real installations across our brand portfolio.
Durathermo™ Ayous — Fluted Quinto Ceiling
Durathermo™ Ayous — Fluted Quinto Ceiling
Durathermo™ Ayous — Pergola
Lunawood® — Parallelogram Cladding
Lunawood® ThermoWood — Ceiling Battens
Lunawood® ThermoWood — Interior Ceiling
Kebony® — Structural Cladding
Accoya® — Facade Cladding
Durathermo™ Ayous — Pergola
Kebony® — Exterior
Kebony® — Ceiling Cladding
Durathermo™ Ayous — Pergola Detail
Accoya® — Deck & TerraceHear directly from the architects, contractors, and homeowners who chose modified wood for their projects — and what it's been like living with it since.
Our team will help you select the best product for your project and send samples.
Curious about thermally modified wood? Below you'll find quick answers to the most common questions about what it is, how it's made, and why it's a smart choice for your next project.
Yes, upfront — and it's worth it. Pressure-treated lumber requires ongoing maintenance, staining, and eventual replacement. Modified wood is designed to last decades with minimal upkeep and no chemical retreatment. When you factor in the lifetime cost of maintenance and replacement, modified wood typically wins. Call us and we can help you compare the numbers for your specific project.
Modified wood is real wood — it has the warmth, grain, and natural feel that composite can't replicate. It also stays cooler underfoot than composite in direct sun, which matters in Florida and Southern California. Composite has its place, but if you want the look and feel of real wood with the durability of a modified product, this is the category to be in.
Generally, no — all of the brands we carry can be left untreated and will weather naturally to a silver-gray patina over time. If you want to preserve the original warm caramel tone, a UV-protective oil or coating can be applied. None of these products require annual retreatment the way traditional wood does.
Decking, exterior cladding and siding, soffits, pergolas, feature walls, interior paneling, docks, boardwalks, fencing, and site furnishings — the brands we carry collectively cover all of these applications. Call us with your project details and we'll point you to the right species and profile.
That depends on your species preference, profile requirements, application, warranty needs, and budget. Our team works with modified wood every day and can help you narrow it down quickly. Call us at 754-778-5759 and give us the basics — we'll do the rest.
We carry modified wood inventory at our Miami, New Jersey, and California locations. Availability by species, brand, and profile varies — call us to confirm what's in stock and what can ship to your project timeline.
Oct 26 – Nov 6 · For trade professionals
Sign up to get up to 27% trade discount across the Deckotech range.
Offer valid for new contractors only and does not apply to purchases made before October 26, 2026. The promotion cannot be combined with additional discounts or existing contractor pricing. Discounts may vary depending on the product, length, and availability. Limited stock available. This promotion is valid through November 6, 2026.