Enter your floor plan dimensions and style preference — our AI calculates the stair rise/run, material needs, and estimated cost so you walk into quotes already informed.
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Rise, run, and headroom requirements vary by state — here's what to know.
See the requirements →Wood, metal, and composite each have different cost and maintenance tradeoffs.
See the comparison →Your space and traffic needs determine the best layout.
Get the guide →Considering a broader home renovation? We can point you the right direction.
See the guide →A rough national ballpark by material and complexity, so you know what to expect before you get quotes.
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📘 Or grab our free The Stair Design & Code Compliance Guide →Describe your space and get plain-English stair design guidance.
Tell us about your project and your ZIP. We'll connect you with licensed local stair contractors for a free, no-obligation quote.
Speak to a contractorIf your project includes deck or stair railing, our sister site can help estimate that separately.
Explore railing options →Popular picks across styles and budgets. Prices vary — check current cost at retailer.
A 6-page, plain-English guide: building code basics, material comparison, and a layout decision framework.
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Most US building codes require a maximum riser height around 7.75 inches, minimum tread depth around 10 inches, and minimum headroom of 6 feet 8 inches, though exact requirements vary by state and municipality — always confirm locally before finalizing a design.
Spiral staircases use significantly less floor space than straight or L-shaped stairs, making them a strong option for tight spaces, though they can be less convenient for moving furniture or frequent heavy traffic.
Stair installation or renovation typically ranges from $1,500-5,000 depending on material, layout complexity, and whether it's new construction or a replacement — use the cost estimator above for a rough range specific to your project.
Structural changes to stairs, especially those affecting rise/run or load-bearing elements, typically require a permit — cosmetic tread or railing replacement usually does not, but check with your local building department to confirm.
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