Call Us Today!

Thermory

Thermory®

Mason’s Mill & Lumber is proud to be a Thermory® distribution partner and the operator of the Thermory USA Central Warehouse in Houston, Texas. As the home of the largest Thermory inventory in the country, our Houston location supports Thermory’s nationwide distribution network by shipping daily across the U.S. In addition to serving the Houston market directly, Mason’s offers custom milling and factory finishing on premium thermally modified products to meet your exact specifications.

Premium Sustainable Thermally Modified  Wood

Thermory® is a global leader in thermally modified wood products—engineered to withstand the elements while bringing out the natural beauty of real wood. Using only heat and steam, Thermory® enhances the durability, stability, and weather resistance of each board without the need for harmful chemicals.

The result? Wood that lasts for decades outdoors, resists warping and rot, and ages gracefully over time.

Request a quote or contact Mason’s Mill to learn more!

Thermory

Real Wood

Thermally Modified

Sustainable

Hidden Fixing

Eco Friendly

Easy Install

Thermory® Benchmark Ash C23J Cladding / Siding Lap & Gap

Thermory® Benchmark Ash Cladding / Siding Lap & Gap offers the classic, timeless sophistication of real wood combined with the exceptional durability that results from our thermal modification process. When it comes to rot resistance and stability, this ash lap and gap will take on any other real wood product, including tropical woods and other modified hardwoods. Meticulous milling means clean lines, tight seams and easy installation. With Thermory® Benchmark Ash Cladding / Siding Lap & Gap, you’re guaranteed to have a well-clad wall.

The Thermory® wood process modifies each board completely, all the way through to the core, leading to unequalled durability and stability without sacrificing the natural qualities of real wood. To learn more about Thermory® Cladding & Siding, click HERE: https://www.youtube.com/watch?v=Thk1UAQYOaU

• 25 Year + Lifespan
• Rot Resistance
• Thermally Modified Ash

CLICK HERE TO ORDER A $10.00 SAMPLE in your choice of species that will be credited towards your full order.

  • Desc.
  • Sizes
  • Quote
Categories: Cladding & Siding,Green Building Materials,Hardwood,Shiplap,Siding,Thermory®,Tongue & Groove
Sub-Categories:
Tag: Ash
Brand: Thermory®
Item#: -----1 x 6 C23J ASH SIDING LAP & GAP
Item#: --->GROOVED BACK FOR PACS FURRING STRIPS
Item#: 6515-6ft - 1 x 6 x 6' LAP & GAP C23J JEM
Item#: 6515-7ft - 1 x 6 x 7' LAP & GAP C23J JEM
Item#: 6515-8ft - 1 x 6 x 8' LAP & GAP C23J JEM
Item#: 6515-9ft - 1 x 6 x 9' LAP & GAP C23J JEM
Item#: 6515-10ft - 1 x 6 x 10' LAP & GAP C23J JEM
Item#: 6515-11ft - 1 x 6 x 11' LAP & GAP C23J JEM
Item#: 6515-12ft - 1 x 6 x 12' LAP & GAP C23J JEM
Item#: -----C23J SHIPLAP FURRING STRIPS
Item#: ----->3/4" X 2" X 7.5'
Item#: 6516 - PACS C23J PLYWOOD FURRING STRIP
Item#: ---->1/2" X 2.5" X 79.1"
Item#: 3516-GRAD - PACS ALUM. C23J GRAD MINI RAIL

Quote

    Your Name (required)

    Your Email (required)

    Zip Code (required)

    Product Inquiry Name

    Please provide more project details.

    Please prove you are human by selecting the house.

    Thermory® Products Available
    Through Mason’s Mill & Lumber

    Whether you’re designing a modern commercial façade, building a backyard retreat, or crafting a warm interior space, Thermory® offers options for every vision:

    Decking: Rich tones and superior stability for outdoor living spaces.

    Cladding & Siding: Eye-catching textures and profiles for long-lasting curb appeal.

    Flooring: Precision-milled Thermory® Ash for stunning interiors.

    Custom Milling: Profiles tailored to your design and installation needs.

    Factory Finishing: Professional coatings that enhance performance and beauty

    Natural Thermal Enhancement of Hardwood & Softwood

    Thermory® elevates the performance of select hardwoods using a precise thermal process relying only on heat and steam, without chemicals, to enhance durability, dimensional stability, and visual richness.

    How It Works

    Thermory’s controlled, two-stage method begins by reducing the wood’s moisture to nearly zero over an extended, closely monitored heating cycle. Once dehydrated, we elevate the temperature to species-specific thresholds and then carefully cool and mist the boards.

    This complete internal transformation, not just surface-level, yields timber that performs with confidence in both interior and exterior architectural applications.

    Thermory® is the clear choice for long-lasting, beautiful biophilic driven design.

    Why Spec Mason's Mill to Supply Thermory®

    Thermory Decking

    Extensive Inventory — Ready to ship from our Houston warehouse.

    Custom Milling & Finishing — In-house capabilities to meet exact project specs.

    Ready to Ship — Fast, reliable delivery wherever your job site is located.

    Expert Support — Our team understands Thermory® inside and out, from product selection to installation recommendations.

    Trusted Partner — As an official Thermory® distributor, we ensure every order meets the highest quality standards.

    Frequently Asked Questions

    Popular options include Thermory® Ash, Scots Pine, Red Oak, Clear Pine and Spruce—each with unique color, grain, and performance characteristics.

    Yes. The thermal modification process uses only heat and steam—no chemicals.

    When properly installed and maintained, Thermory® products can last 25 years or more.

    Like all natural wood, it will gradually silver to a soft gray when left unfinished outdoors. Many customers choose to apply a UV-protective oil to maintain the original tone.

    Absolutely. Mason’s Mill can custom mill Thermory® to your exact dimensions and profile needs.

    Biophilic design bridges the gap between built environments and nature by incorporating natural elements—like organic materials, daylight, and natural patterns—to enhance human well-being. Rooted in our innate affinity for nature, this design approach improves mental clarity, reduces stress, and boosts creativity and productivity.

    Yes—Thermory’s thermally modified wood is rigorously engineered using only heat and steam, without chemicals, to enhance durability and stability. It’s well-suited for exterior and interior applications—including sauna environments where resistance to heat and moisture is critical.

    Discover the balance of beauty and performance with thermally modified wood—treated using only heat and steam to enhance durability, stability, and natural character while staying chemical-free. Built to last indoors and out, thermowood brings deeper tones, superior moisture resistance, and refined comfort underfoot. Fill out the form to start your next Thermory project today.

      Subscribe And Enjoy!

      Product Updates,
      Special Sales & More!

      You have been successfully Subscribed! Ops! Something went wrong, please try again.
      I don't want to see this anymore.

      Subscribe And Enjoy!

      Product Updates, Special Sales & More!

      Stay informed with the latest from
      Mason's Mill & Lumber Co.

      You have been successfully Subscribed! Ops! Something went wrong, please try again.
      I don't want to see this offer anymore