CALL OUR THERMALLY MODIFIED WOODS SPECIALIST NOW!

Shop Thermally Modified Ash & Ayous

AT WHOLESALE PRICES IN CALIFORNIA & THE WEST COAST

Starting at

$5.50

CALL TO GET CONTRACTOR PRICING

we beat all

competitor's prices

Zero-Chemical Cladding & Siding Lumber Built to Withstand the West Coast Climate

we beat all

COmpetitor's prices

Shop Thermally Modified Ash & Ayous

AT WHOLESALE PRICES IN CALIFORNIA & THE WEST COAST

Starting at

$6.10

CALL TO GET CONTRACTOR PRICING

Local Next Day Delivery

US’s biggest Thermal inventory

Our California-based warehouse keeps a full supply of thermally modified Ash and Ayous in common cladding sizes (1x4, 1x6, 1x8, etc.), with even-length boards up to 20 feet—ready for pickup or delivery.

next day & Reliable Shipping

We offer fast, reliable next-day delivery across major West Coast metros including Los Angeles, San Diego, San Jose, San Francisco, and beyond.

Dimensionally Stable & Zero-Chemical

Thermally modified wood offers enhanced stability and weather performance—with zero chemicals. Heat-treated in a controlled process, these boards are safe, sustainable, and built to last.

Direct Importers of Premium Wood

As direct importers of thermally modified hardwoods, we eliminate distributor markups to offer the West Coast’s best pricing on these high-performance alternatives to tropical species.

Want to Talk to a Thermal Wood Specialist?

West Coast’s Trusted Source for Thermally Modified Ash & Ayous

WE ARE THE TOP DIRECT SUPPLIER OF THERMALLY MODIFIED WOOD

At Beyond Lumber, we specialize in thermally modified Ash and Ayous—two durable, chemical-free species engineered for modern outdoor design. Whether you’re an architect sourcing for a rainscreen project or a builder cladding a custom home, our lumber delivers superior value: rich, refined looks, lasting weather resistance, and sustainable performance that holds up in dry, sunny, coastal environments.

As a direct importer with deep West Coast roots, we deliver fast and at wholesale pricing—with no delays, no middlemen, and no compromises. We’re stocked, responsive, and ready to help you meet tight timelines and demanding project specs.

Thermally modified ash boards – durable, chemical-free wood for outdoor spaces

Fully Stocked Thermally Modified Woods for the West Coast, Delivered Fast

We stock thermally modified Ash and Ayous at our West Coast warehouse, in the most popular siding and soffit profiles. Our local logistics team makes next-day jobsite delivery possible across California and the Pacific Northwest.
Whether you’re cladding a home in San Diego or wrapping an ADU in Portland, we’ve got the stock and service to keep your timeline on track.

We offer what every contractor needs:

  • Direct-to-site West Coast shipping
  • No distributor markups
  • Full range of dimensions
  • Wholesale pricing
ASSORTED &

STOCKED PRODUCTS

ON THE WEST COAST

TROPICAL HARDWOODS

Our tropical hardwoods, including Ipe, Cumaru, Tigerwood, and Garapa, are prized for their strength, longevity, and weather resistance. Ideal for decks, fences, siding, pergolas, stairs, and docks. Every board is kiln-dried, FSC-certified, and ready to install.

COMPOSITE DECKING

We carry and stock trusted composite brands like TimberTech-Azek, Deckorators, Trex, and others, for builders seeking low-maintenance, weather-resistant alternatives to wood. Available in both capped and solid profiles, with fast West Coast fulfillment.

THERMALLY MODIFIED WOODS

We stock a range of thermally modified woods that offer enhanced durability, moisture resistance, and dimensional stability without any chemicals. Ideal for siding, decking, and exterior cladding, these woods perform exceptionally well in dry, coastal, and high-sun environments. Available in multiple species and profiles, with fast West Coast shipping.

Sustainably Sourced. Responsibly Delivered.

Our thermally modified woods are treated using only heat and steam—no chemicals or toxins. FSC-certified and kiln-dried, they’re built to meet strict environmental standards without compromising performance or appearance.

Our West Coast Promise:

  • Full stock 
  • Quick-ship service
  • Fair wholesale pricing
  • Best-in-class product quality

Serving Builders Across the West Coast

From Los Angeles to Seattle, we supply thermally modified woods and premium cladding lumber direct to job sites and lumberyards throughout:

Los Angeles – San Diego – San Francisco – Sacramento – Portland – Seattle

Why Beyond Lumber Tropical Hardwoods

Ash and Ayous are modern cladding solutions with old-world resilience. Their enhanced durability and low-maintenance appeal make them ideal for coastal, desert, and high-sun projects across the West.
Both species are lightweight, easy to install, and built to perform. Thermally modified wood stays stable through the seasons, resists warping and decay, and delivers a refined, architectural finish that last years longer than traditional softwoods used for cladding and siding projects on the West Coast.

Thermally modified ash wood – perfect for outdoor decking, siding, and architectural facades

ASH

Weather-resistant and design-forward, Ash offers rich grain character with a natural brown tone that grays beautifully over time. Sustainably sourced and completely chemical-free.

1x6 Thermally Modified Ayous Lumber T&G

AYOUS

Lightweight, modern, and easy to install, Ayous features a soft, clean look and works well for soffits, cladding, and accent details. It performs exceptionally well in sunny and coastal settings.

Thermally modified ash boards – durable, chemical-free wood for outdoor spaces

ASH IN ACTION

High-quality Ayous lumber used for thermal modification and façade applications

AYOUS IN ACTION

Best Thermally Modified Wood Cladding & Siding Prices In:

Projects our clients across the country built using Beyond Lumber thermally modified woods

Upgrade your spaces with the classic elegance of Wood Grid Cladding!

Starting at

$3.23

5/4″ X 6″ UP TO 20 FT LENGTH

Brands We Work With

Los Angeles lumber yard contact page – reach our export team for premium hardwood and decking materials

Request an estimate

Have questions or need assistance? Reach out via email, phone, or our contact form—we’re here to help!


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