Planning
Common Stair Design Mistakes to Avoid
Frequent staircase planning mistakes around step count, headroom, openings, and layout assumptions.
Choosing Step Count Too Early
It is tempting to pick a step count first, but the room, opening, and comfort targets should all influence that decision.
Compare several counts and watch how riser height, going, and pitch move together.
Ignoring Headroom Until Late
Headroom conflicts are painful because they often appear after the stair already seems solved in plan.
Add the upper floor opening and slab thickness at the beginning, especially in renovations.
Forgetting Real Circulation
A stair is part of a room, not just a set of dimensions. Doors, landings, furniture routes, and arrival direction all affect whether it works.
Before finalizing, imagine someone carrying a box up and down the stair. That simple test exposes many awkward layouts.
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Comfort
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