How to Lay Out a Staircase
The dimensions that decide whether the room works, whatever it ends up looking like. The most-seen joinery in the house and the least often updated.
BeforeAfter
- 1
What the room is arranged around
A staircase remodel is usually cosmetic — treads, balustrade, handrail, the wall alongside — and it changes the hall more than new flooring would. The geometry stays; what changes is whether the stair looks like part of the house or like something the house came with.
- 2
Rule 1
Handrail height sits at 34–38in above the pitch line, and must be graspable — a wide flat rail is not.
- 3
Rule 2
Keep balusters under 4in apart.
- 4
Rule 3
A runner should leave 3–4in of tread visible on each side, equally.
- 5
Rule 4
Headroom under any bulkhead is 6ft 8in.
- 6
Rule 5
Keep tread depth and riser height identical on every step; a single odd step is the one people trip on.
- 7
When it is tight
Replacing a solid balustrade with open spindles or glass is the single biggest visual gain in a narrow hall — it lets the eye through to the wall beyond and the stair stops dividing the space.
Questions
- What should I decide first in a staircase remodel?
- A staircase remodel is usually cosmetic — treads, balustrade, handrail, the wall alongside — and it changes the hall more than new flooring would. The geometry stays; what changes is whether the stair looks like part of the house or like something the house came with.
- What goes wrong most often?
- A pendant in the stairwell that nobody can reach to clean or relamp. New spindles fitted to old newels, so the two never match.
- Will it work in a small staircase?
- Replacing a solid balustrade with open spindles or glass is the single biggest visual gain in a narrow hall — it lets the eye through to the wall beyond and the stair stops dividing the space.
- Can I see it on my own staircase before starting?
- Yes — photograph the space and run it through the Studio. It is generated imagery, so compare the render against your photo rather than treating it as a plan.