Stair type overview
Elliptical Stairs
26 in usable width, 80 in headroom. Elliptical stairs have an oval footprint where clearance changes through the curve.
curvedcomplex navigation
Typical Stair Measurements
Clear width
30"
Effective width
26"
Tread depth
10"
Riser height
8"
Headroom
80"
These are planning defaults. Measure your real stairway before buying, moving, or booking delivery.
Fit Notes
- The tight end of the ellipse is the bottleneck.
- A wider outside arc helps only if movers can stay on that path.
- Measure both width and headroom at the narrowest bend.
What Fits?
3-seat couch
Often works if carried upright and the landing has enough pivot space.
Queen mattress
Usually clears on edge because thickness is the limiting dimension.
Console table
Works if the long side can follow the wider arc.
Upright piano
Weight, balance, and landing turns usually require professional movers or another route.
Check Your Specific Item
Enter your item dimensions and staircase details to test the exact width, turn, landing, and headroom constraints.
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