04/28/2026
Modified wood has become one of the most talked-about materials in exterior design. It promises stability, durability, and a more sustainable alternative to traditional options.
But not all modified wood performs the same.
The process, the species, and the manufacturer behind it all matter more than most people realize. What looks great on paper doesn’t always translate to long-term performance in the field.
Before specifying it on your next project, it’s worth understanding what’s actually happening to the wood at a structural level, and what trade-offs may come with it. Modification improves resistance to moisture and decay, but it can also reduce strength and flexibility depending on how it’s done.
In this breakdown, we walk through what to look for, what to question, and how to make sure you’re specifying a product like Thermory USA or Accoya Wood that will perform the way you expect.
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Thermally modified wood isn't one-size-fits-all. Learn why Thermory and Accoya outperform newer brands like Abodo on durability, testing, and warranty — and what every architect, builder, and homeowner should ask before specifying.