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Stair Layout Calculator
x402
Stair Layout Calculator is a paid API for AI agents from construction-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Calculates stair layout from total rise: number of risers, exact riser height, tread depth, total run, stringer length, angle, and building code compliance check.
Price / call$0.02
Success—
StatusUnknown
How this service works
Stair layout from total rise: number of risers, exact riser height, total run, stringer length, angle and a code check.
Output
Returns a structured object with: number of risers and treads, exact riser height in inches, tread depth in inches, total run in both feet and inches, stringer length in inches, stair angle in degrees, a comfort rule value and pass/fail flag, a code compliance verdict with reasons, a list of any issues, a human-readable summary, and optional disclaimer or degraded-service flags.
Example use cases
Deck stair design with code check
“I'm building stairs from my deck down to the yard — the total rise is 84 inches. Can you figure out how many risers I need, what the riser height should be, the total run, and whether it'll pass building code? Use a 10-inch tread depth.”
Interior staircase layout planning
“I'm framing an interior staircase with a floor-to-floor height of 120 inches. Calculate the riser count, exact riser height, stringer length, and the stair angle for me, and let me know if it meets code. I'd prefer a target riser of 7 inches.”
Code compliance check for existing stair design
“My stair total rise is 93 inches and I want to use 7.5-inch risers with 10-inch treads — can you run the stair layout calc and tell me if that configuration passes code, including the comfort rule result?”
Technical details
Endpoint
GEThttps://construction-calc.x402tookit.com/stair-calc?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to compute a complete stair layout from a known floor-to-floor height, including code compliance validation. It is purpose-built for construction planning and returns all critical stair geometry in a single call, making it ideal for agents assisting with residential or deck construction design. Prefer this over general math tools when you need building-code awareness alongside the geometric calculations.
Side effects
- Missing required totalRiseIn parameter returns an error
- Very small or zero totalRiseIn values may produce nonsensical riser counts
- Extremely large total rise values may exceed practical stair design limits
- targetRiserIn values outside typical code range (4–8 inches) may trigger code failure flags
- Non-numeric input for query parameters causes a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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