Check stairway clearance for any item, or explore our guides for common stair types.
This calculator determines if furniture will fit up or down your staircase. We simulate navigation for straight stairs, L-shaped stairs, U-shaped stairs, spiral stairs, and more—accounting for ceiling height, landing depth, and turning radius at each step.
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Building codes require a minimum clear width of 36 inches, and most residential stairs are 36–42 inches wide. Subtract 3–4 inches if a railing is present on one side.
Tilt the item upright and use the vertical space above the landing to clear the turn. Having one person above and one below helps control the angle as you pivot around the corner.
In most cases, yes — removing a railing gains 3–4 inches of usable width. Railings are typically attached with brackets or screws and can be reinstalled afterward.
Going up is physically harder due to gravity and the lifting angle. Going down requires more control since the weight pulls forward. Both directions have the same clearance constraints.
Yes — spiral stairs have a much tighter inner radius than outer radius. Always measure clearance at the narrowest point near the center pole, and expect significant width limitations.
Straight, L-shaped, and U-shaped staircase paths — with landing and ceiling clearance.
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