Estimate stair riser count, actual riser height, treads, total run, and stringer length.
Planning estimate only. Verify dimensions, waste, coverage, product specifications, and local requirements before purchasing materials.
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Risers = ceiling(total rise ÷ target riser); actual riser = total rise ÷ risers; treads = risers − 1; stringer slope = √(rise² + run²).
Sources support the method, terminology, or planning context. Editable assumptions remain your responsibility.
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