8073 Replacement Stair Treads

(4 customer reviews)

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Rise & Run Details

Please provide us with a valid stair angle to add this product to your cart.

Please Note - If your staircase contains a variable rise and run from step to step, you will need to work with a Project Manager after the sale to engineer the system.

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Ships in about 20 Business Days

Designed to go over existing treads.

Product Description

Whether remodeling your entire home or just swapping out carpet for wood floors, the 8073 Replacement Stair Treads are right for you! Created to slide directly atop existing construction treads, this design solution instantly transforms outdated stairs into a stylish centerpiece. Details include quality stain-grade materials and smooth bullnose edging, resulting in a code-friendly stairway remodel that gains major style points.

Note, wood products may have varying amounts of staves due to the varying thicknesses of lumber that comes in each bunk and the width of the product.

Click here to view how Replacement Tread measurements work.

Key Features

  • Replacement Tread
  • Bullnose Trim
  • Rounded Underside Nosing Connection for Increased Strength
  • Stain-grade
  • 1/2″ Thick Body with 1″ Thick Front Nosing
  • Multiple Sizing Options
  • Tread Depth of 11 1/4″ – Includes 1 1/4″ Deep Nosing

Front Nosing

Replacement treads are crafted with a ½” thick body and a 1″ thick Front Nosing. This design gives the appearance of a thicker tread, while maintaining the appropriate tread thickness for compliance, safety, and ease of use.

Returned Edges

Any side of the 8073 Replacement Stair Treads that will not touch a wall is fitted with smooth bullnose trim. Returned Edges cover end grain, while also adding decorative flair. There are three configurations of returned edges available to cover the exposed edges of 8073 Replacement Stair Treads: 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 stair treads are needed when both edges of the tread are exposed. 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.

With the exception of Double Returns, all Left, Right, and No Return Replacement 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.

Code Compliance

Replacement Treads are designed to slide on top of existing stair treads. A consistent rise from step to step is important for safety and most codes require treads stay within a ⅜” zone of uniformity. StairSupplies™ replacement treads, when installed correctly, comply with most code requirements. Be sure to check your local code specifications before purchasing Replacement Treads.


Need something different? No problem! At StairSupplies™ we create custom stair tread lengths, depths, and widths every day. Use our Custom Replacement Stair Tread Designer to order the stair treads that will fit your home perfectly.

Product Specifications


  • Tread Thickness: ½”
  • Bullnose Thickness: 1”
  • Tread Depth: 10”
  • Tread Depth with Bullnose: 11 ¼”
  • Bullnose Depth: 1 ¼”
  • Tread Width without Returned Edges: 36”, 42”, 48”, 54”, 60”, 66”, or 72”

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

Clear Finish & Stain Information

StairSupplies™ offers several premium stain and finish options for our products, depending on the product’s use. For Replacement Wood 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 Replacement Wood 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 apply this specialty product onto each stair tread using a spray applicator for even, flawless coverage to protect your replacement 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.

Installation Guide

Completed Projects

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

    Product Q&A

    Jack Fitzgerald
    8 years 7 days ago

    Do you have a replacement riser to go with the treads??
    How much it, stained?

    Stair Supplies
    8 years 6 days ago

    Hi Jack,
    I see you found the answer, but just in case others don’t. Here is a link to our replacement risers:

    8 years 3 days ago

    What is the difference between part numbers 8073 and 8074

    Stair Supplies
    8 years 1 day ago

    The 8073 has a full 1″ bullnose, meaning that the front edge is rounded over completely (it makes a half circle).
    The 8073 has a more modern or craftsman look with more square edges. All we do is add a 1/8″ roundover to the front edge, to knock down the corners so that they aren’t sharp.

    Please let us know if you have anymore questions!

    6 years 9 months ago

    what is the horizontal dimension of the nosing extension (how far does the edge of the nosing extend beyond the finished face of the riser)?

    6 years 9 months ago

    Hi Jim,

    The extension on the return is 1 1/2″. The nosing on the front face of the tread is 1 1/4″. Please let us know if there’s anything else we can help you with.

    6 years 8 months ago

    On your finishes What does the FC vs the LV mean

    6 years 8 months ago

    Hi Larry!

    Those are markers for an internal code we use to help us identify each stain. We’re in the process of translating them into more identifiable marketing names. Please let us know if there’s anything else we can help you with.

    Jim Zupan
    6 years 6 months ago

    Many other replacement stair treads are 3/4″ thick. With the body of your tread being only 1/2″ thick, do you ever have problems after installation with the tread breaking or cracking where the nosing begins and extends out the 1 1/4″, as that’s where most of the weight and pressure are on the tread while people are using the stairs.

    6 years 6 months ago


    Good question. We have not had this occur. As we utilize extremely strong glue joints and non-veneered treads, we are offering the strongest possible tread for that thickness. However, if you have concerns, I’d encourage you to check out the Janka Scale and select a hard wood to manufacture the replacement treads out of.

    5 years 10 months ago

    My staircase railing and balusters are connected to the actual stair which is currently covered with carpet.Any ideas on how I can install your wood treads and keep the railing intact?

    5 years 10 months ago

    We do not provide installation, but if you give us a call at 1 (866) 226-6536 we should be able to provide some advice on best installation practices.

    The StairSupplies Support Team

    5 years 10 months ago

    Do you do installations?

    Eric Holen
    4 years 11 months ago

    Is your white oak from the south or the north? Northern white oak is a bit too brown to match our flooring which is Homerwood wire brushed white oak.

    4 years 10 months ago

    Thanks for the question, Eric.

    Our white oak is northern white oak, from Indiana, Michigan, Pennsylvania etc. If you give us a call at 1 (866) 226 6536 to order a sample you can see how it will match.


    StairSupplies Customer Support