Stair Parts | Wood Stair Parts | Stair Treads | Thick Treads | 3″ Thick Stair Treads
8069 - 3" Thick Stair Treads (Copy)

3″ Thick Stair Treads

Ships in approx: 22 Days

Product Description

Ideal for floating stairs, the 3” Thick Stair Treads are crafted with meticulous precision. Superior construction and high-end finishes make StairSupplies™ thick treads stand out. Thoughtful details like a subtle ¼” bevel on each edge and the eye-catching butcher block style add to the overall effect. Pair these stunners with products from our Viewrail line, which offers cable railing, stainless steel posts, and floating stair system.

Key Features

  • 3” Thick
  • Solid, Stain-Grade Wood
  • ¼” Roundover
  • 360° Beauty


Our 3” Thick Stair Treads add a modern, strong appearance to both Traditional and Floating Stair Systems. To mount thick treads on traditional stairways, be sure to read about Returned Edges on the Specifications tab above. Floating Staircases may require specific notches for mounting thick treads, depending on the system you use. We are happy to accommodate requests for notches, grooves, or other special indentations to help the mounting process. Give us a call for more details.


Bold and creative, our Butcher Block Thick Stair Treads boast attractive and unique grain patterns on each side.

Additional Style Options

  • Distressed Detailing
  • Hand Scraped Texture
  • ⅛” Roundover or Square Edges
  • Returned Edges (see Product Specifications tab above)

Product Specifications


  • Thickness: 3”
  • Depth: 11 ¼”
  • Width: 36”, 42”, 48”, 54”, 60”, 66”, or 72”

We are happy to accommodate your custom dimensions. Please use the Custom Thick Stair Tread Designer to order treads that will fit your particular staircase. Give us a call if you have any questions!

Returned Edges

Traditionally styled stairways sometimes require mitered edges, but they are not commonly used on floating stair systems. Returned Edges cover end grain, while also adding decorative flair. There are three configurations of returned edges available: Left, Right, and Double. NOTE: If both sides of the stair treads fit against a wall, you do not need returned edges.

To determine if a Left or Right Returned edge is required, stand at the bottom of the stairway and look up. If the right side is exposed, then you need a Right Returned Edge. If the left side is exposed, then you need a Left Returned Edge.

Double Return thick stair treads are used when both edges of the tread are exposed on a traditional stairway (but NOT floating stairs). This style of tread requires a special measurement called the “throat cut”, which you will need to provide when you place your order. To find the throat cut of your Double Return tread, measure the length between the inside of the Left and Right Returned Edges. In the end, the final width of a Double Return Thick Tread equals the Throat Cut measurement plus 2 ½” (1 ¼” per Returned End).

With the exception of Double Returns, all Left and Right Returned Treads are sent to you with up to an extra 1” of material on the end with no return. This additional allowance may be trimmed on-site to match the exact curve of your unique wall, ensuring a snug fit. If you are ordering treads with No Returns, all 6 sides of the thick tread will be cut, stained, and finished to your specifications.

Clear Finish & Stain Information

StairSupplies™ offers several premium stain and finish options for our products, depending on the product’s use. For Thick Stair Treads, we offer both clear finishes and stains. Select a clear finish if you want to draw out the natural beauty and colors of the wood. If you prefer deeper, richer tones, our custom-mixed stains are the ideal choice for your Thick Stair Treads.

All tread materials and products that are used underfoot are finished with a Conversion Varnish. Strong and resilient, this varnish is standard in the hardwood flooring industry. Our team of experts applies this specialty product onto each stair tread using a spray applicator for even, flawless coverage to protect your treads against heavy wear and tear.

Wood Grain & Color Variation

At StairSupplies™ we believe that natural wood colors and visual textures add character to our products. With that in mind, we strive to match the grain and color of all of our wood products as closely as possible. However, due to the natural variation of wood products, there may be instances in which a perfect grain and color match is not possible. By ordering from StairSupplies™, you acknowledge that you are receiving a uniquely crafted product and there may be some variation in the grain and color of your wood products.

Interior Use Only

This product may contain glue joints and is designed for interior use only.

Completed Projects

This product has been used in the following "Completed Projects"

    Product Q&A

    1 year 28 days ago

    We live in the high rockies, and I’m worried about them splitting in the dry air here. Are they kiln dried?

    1 year 28 days ago


    Thanks for the question. All of the lumber that we purchase is of select-grade quality or better and is kiln dried to the appropriate temperature for that species.

    Let us know if we can help you with anything else.

    Eric Keiffer
    8 months 6 days ago

    How would one go about attaching these to standard stair stringers?

    8 months 6 days ago

    Hi Eric,

    Thanks for your question. There are a number of ways to install our 3″ thick stair treads. To get a better sense of your specific application, please give us a call at 1 (866) 226-6536 and one of our stair experts would be happy to assist you.

    The StairSupplies Support Team

    7 months 7 days ago

    Stair width is 56″. Support is on each end and free floating in middle. How thick should my Wood Tread be?

    7 months 7 days ago

    Hi Donnie,

    It sounds like the scope of your project is fairly customized. We’d recommend calling in to one of our stair experts to ensure your most-accurate tread-buying experience. You can reach our team at 1 (866) 226-6536.

    The StairSupplies Support Team

    Bruce T Fallon
    5 months 12 days ago

    We are considering a product like this for a commercial office building on the main exit stairs. What kind of long term maintenance and life span do you anticipate for this product, using the red oak treads.

    5 months 12 days ago

    Hi Bruce,

    In a low-traffic, low-population commercial application, one might expect a twenty-year lifespan on a red oak thick tread. However, the lifespan/maintenance of your wood stair parts is directly related to the amount of foot traffic it sees. If you have additional questions, we recommend giving us a call at 1 (866) 226-6536 and we’ll get you in touch with an expert in commercial applications.

    The StairSupplies Support Team

    Jesse Fender
    2 months 19 days ago

    Can the 72″ tread be supported by stringers that run along the side of stair. Leaving the majority of the tread unsupported other than the ends.

    2 months 19 days ago

    Jesse, thanks for your excellent question.

    I think you’re right to be concerned with a tread that long. Our products are top quality and if they are properly mounted on a steel stringer, they should work on even a 72″ tread without bowing. If they’re not mounted very solidly they could bow. If you have a wood stringer, they will almost certainly bow over time. You might want to consult an architect or an engineer to be certain about your specific project.

    One of our customer support specialists would be happy to help you find the right solution if you want to give us a call at (866) 226 6536.


    StairSupplies Customer Support