Thermo Ash 5/4 × 6 S4S E4E — End Match — Natural — Ceiling & Soffit

MATERIAL, MEET POSSIBILITY

A closer look at Thermo Ash 5/4 × 6 S4S E4E — End Match — Natural — Ceiling & Soffit.

Crafted from sustainably sourced Ash and transformed through our legitimate thermal modification process, this 5/4x6 S4S E4E - End match delivers long-term dimensional stability—it won’t warp, twist, or cup, even in climates with extreme temperature swings. That means less maintenance, better visual consistency, and fewer callbacks over time. With reduced moisture content and enhanced resistance to insects and decay, it comes backed by a 20-year warranty—far outperforming untreated domestic species. Designed for decking, siding and ceilings, this profile features an end match, offering flexibility across modern and traditional styles. It’s a smart, lasting alternative to domestic woods, engineered for durability, install efficiency, and performance you can trust in any environment—from snow to desert heat.

• 20-year warranty
• Certified sustainable
• Legitimate Thermowood®
• 100% organic, no resins or chemicals
• Reduced moisture content
• Dimensionally stable
• Suitable for all climates
• Low maintenance
• Will weather into a beautiful silver color if left untreated
• From sustainably managed forests