Specifications
Thickness	15/16"
Length	6-12' Lengths
Width	5 1/2” Net Face
Quantity	15 Sq Ft Per Box
Profile	Square Edge or Pre-Grooved
Installation	Use hidden fastener clips for pre-grooved decking or install S4S using biscuit jointer tool.
More info	Orders under 150 SF will be shipped at 5, 6 and 7' lengths. Please note: This is a real wood product so coloring, texture, and shading may vary from board to board.

Thermally Modified Ash Decking (15 SF)

Regular price $269.99 ~~$390.00~~ Save 31%

In stock and ready to ship to

Thermally-Modified For Enhanced Durability
Weatherproof: Rated For All Climates
Easy Installation, No Clip System Required
No Knots, Holes, or Other Imperfections
Insect, Decay, and Rot Resistant
Backed By Our 25-Year Durability Guarantee

Quantity: 1 Box (1 Box = 15 Square Feet)

Profile

Pre-Grooved

Square Edge

Quantity: 1 Box (1 Box = 15 Square Feet)

Order Free Sample

Estimated delivery time: 2-3 weeks
(Samples ship in 3-4 days)

Calculate: Number of boxes needed

Length

Width

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Specifications
Thickness	15/16"
Length	6-12' Lengths
Width	5 1/2” Net Face
Quantity	15 Sq Ft Per Box
Profile	Square Edge or Pre-Grooved
Installation	Use hidden fastener clips for pre-grooved decking or install S4S using biscuit jointer tool.
More info	Orders under 150 SF will be shipped at 5, 6 and 7' lengths. Please note: This is a real wood product so coloring, texture, and shading may vary from board to board.

Customers Love Our Decking

Average Customer Rating 4.9/5

The natural look and feel of my new ash decking is second to none. So happy I went with WoodPlank over other options I considered like composite. It transformed my backyard into a beautiful oasis.

Amy K

Goshen, NH

Verified Buyer
My contractor recommended I use this material for my new deck and wow, i am speechless. Not only did it show up right on time, but the end result is gorgeous. Nothing compares to the beauty of real wood.

Susan B

Fernley, NV

Verified Buyer
I love the natural beauty it brings to my outdoor space, and the 25-year durability guarantee gives me peace of mind. I would definitely recommend WoodPlank to anyone looking for a top-quality decking option.

Thomas E

Laredo, TX

Verified Buyer

Upgrade To Luxurious, Long-Lasting Ash Decking

Discover the unmatched quality of North American hardwood ash. Milled into exquisite decking, you can build with confidence using the finest clear grade hardwood ash species.

Each plank is transformed through a precise thermal modification process and arrives fully sealed on all four sides, ready for installation. This innovative treatment extends the lifespan of the wood, ensuring a product of superior beauty and strength.

Our Thermally Modified Ash Decking is celebrated for its enhanced durability and resistance to pests, moisture, and decay. Enjoy the rich natural color and beautiful woodgrain of this low maintenance, authentic wood decking.

Why Choose Thermally Modified Decking?

Superior Durability
Designed to uphold its shape and strength over years of use. Enjoy a safer, more reliable deck that retains its beauty and functionality for years to come.
Low Maintenance
Our Thermally Modified Ash Decking, with enhanced stability, needs far less maintenance than regular wood decks. This means more time enjoying the outdoors and less time on upkeep.
Weather-Resistant Beauty
Our decking is designed to gracefully withstand the elements, ensuring a pristine look through seasons of rain, snow, and sunshine, perfectly suited for all climates.
Extended Lifespan
Thermal modification gives our wood unmatched durability and stability, ensuring long-lasting, chemical-free decking. Spend more time enjoying, less time worrying.
Heat-Resistant Comfort
Our Thermally Modified Ash Decking stays cool, unlike composite materials that heat up. Walk barefoot and entertain with no overheating concerns.
Enhance Property Value
Instantly boost the attractiveness and value of your property with our ready-to-install Thermally Modified Ash Decking, a wise investment in sustainable luxury.

Guaranteed Quality With Our 25-Year Warranty

Our commitment to excellence is evident in every piece of Thermally Modified Ash Decking that you receive. Each board is a testament of our dedication to craftsmanship -- precision milled, thoroughly inspected, and securely packaged to the highest standards.

Our innovative thermal treatment and sealing process ensures your decking stands resilient against UV rays, pests, termites, and harsh weather conditions. No more cracking, shrinking, or swelling. This is the new standard for dimensional stability.

Want a deck that remains flawless through time? You’ve found it. Designed for beauty, longevity and ease of installation, this is where functionality meets elegance. Create your outdoor oasis with a decking solution that's built to last. All backed by our 25-year durability guarantee.

WATCH HOW EASY IT IS

Arrives ready to install for you or your contractor.

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View our Recently Completed Client Projects

Easy Installation

Digital Installation Guide Included with Every Order

Prepare Your Foundation

Build the foundation and decking substrate level to prepare for install.

Secure Each Board

Use hidden fastener clips or biscuit jointer for no visible screw holes.

Maintain Your New Deck

Inspect annually for recommended sealing to maintain original color.

Full Installation Guide download icon

Frequently Asked Questions

All of our Modern Ash Decking is made from clear grade Ash that is sourced, milled and sealed in our North American production facilities. Each piece is thermally treated for added durability and stability before it is fully sealed on all 4 sides.

This is dependent on your vision and preferences for design. The siding can be installed with no regular maintenance required which will allow the wood to develop into a beautiful silver color over time. If you wish to maintain or restore the original color of the Modern Exterior Cladding, you can apply a fresh coat of oil based sealant (Thompson’s WaterSeal Clear or Ready Seal) at any time.

All of our exterior decking options are treated to withstand weather of all types - hot sun, dry climates, humidity, or rainy seasons. Our Modern Ash Decking is naturally water repellent due to the thermal treatment process, and then we take the added step of applying a UV resistant treatment and oil based sealant on all 4 sides.

We ship anywhere in the country in 3-4 weeks via UPS or an LTL carrier (we send tracking information once it ships).

We accept returns/exchanges within 30 days from your original order date. Please refer to our Refund Policy here.

Installation is super simple! We recommend using a hidden fastener system for the best result and appearance. Full instructions are included with every order.

Each box contains 15 square feet of coverage. You can use the square footage calculator at the top of the page or you can contact our team through live chat, email or by phone at (844) 755-9663

The quality is exceptional and the rich natural color is gorgeous.

Absolutely love the thermo decking from WoodPlank! The quality is exceptional and the rich natural color is gorgeous.

So far its incredibly durable and has withstood heavy foot traffic.

Great material. So far its incredibly durable and has withstood heavy foot traffic. Also withstood lots of rain so far this year and isn't showing any signs of wear. Highly recommend!

Highly recommend this product

Installation was a breeze thanks to the instructions that were super easy to follow. Highly recommend this product for anyone looking to add a focal point to their backyard!

I appreciate the low-maintenance aspect of this decking

I appreciate the low-maintenance aspect of this decking, as it requires minimal effort to keep it looking pristine. It has truly transformed my outdoor space into a stylish and functional area. I'm extremely satisfied with this product.

It transformed my backyard into a beautiful oasis.

The natural look and feel of my new ash decking is second to none. So happy I went with WoodPlank over other options I considered like composite. It transformed my backyard into a beautiful oasis.

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