THe Benchmark Series

Thermally Modified Wood icon

Thermally modified

Sustainability icon


Weather resistant

Rot resistant

Stunning and sophisticated.

Whether you choose Thermory Benchmark Ash for decking, cladding, or porch flooring, this gorgeous hardwood sets the bar for longevity and stability with proven rot resistance and a timeless aesthetic. Plus, our thermal modification process delivers consistency across every board for easy installation and impeccable construction.


White Ash



Benchmark Ash Decking

Create your dream outdoor space with durable, hardwood decking.

Benchmark Ash Cladding

Give your walls a lift by bringing out their natural charm.

Benchmark Porch FLooring

Relax on a porch built for lazy days and quiet nights.

Benchmark Ash color transformation.

Wood’s natural aging process is influenced by how much exposure it has to the elements. The more Benchmark Ash is exposed to UV light and rain, the faster its color will transform from brown to silver—sometimes in as little as six months. To maintain your wood’s natural color outdoors, simply treat the boards with a penetrating UV protective oil.

Color Evolution Chart

Get started with a Thermory expert.

Fanned out Vivid treated boards

Vivid Color Options

Have a specific look in mind? Get the color you want on any of our thermally modified species. Click to see your options.

Stack of factory finished boards

Factory Finishing

Keep your wood’s natural tone looking fresh with our recommended UV protective oil. Have it finished before it’s shipped to save yourself the extra step.

Thermally Modified

Heat. Steam. Cool. Done.

Thermal modification is a chemical-free process that gives you the beauty of real wood, naturally enhanced with only heat and steam for unequaled strength and stability—even in changing weather conditions. And with greater insulating properties compared to unmodified wood, our wood is never too hot on your feet.

Piece of thermally modified wood

Sustainably Sourced

The right wood. The right way.

We source all our wood using responsible forestry practices, never laying a finger on our tropical woodlands and rainforests. And wood is the only naturally renewable building material that doesn’t generate hazardous waste. So, when you choose Thermory, you’re not just investing in quality, but in the health of our planet, too.

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Nordic swan ecolabel logo
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PEFC logo

*All certifications are held and maintained by Thermory USA’s parent company, Thermory AS.

Install with ease.

Put installation nightmares behind you with lightweight and expertly milled materials designed to solve your toughest install issues so you can work with ease and efficiency.

Thermally modified

An attractive finish with 
no visible screws

End matching

Reduces waste, saves expenses

Smooth cutting

Easy on your blades for fewer interruptions

Lightweight material

Your back and shoulders will thank you