Stair type overview
Alternating Tread Stairs
24 in usable width, 80 in headroom. Alternating tread stairs are steep utility stairs best suited to small boxes, not furniture.
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Typical Stair Measurements
Clear width
24"
Tread depth
6"
Riser height
10"
Headroom
80"
These are planning defaults. Measure your real stairway before buying, moving, or booking delivery.
Fit Notes
- The 24 inch width is too narrow for most furniture and appliances.
- Steep angle makes balance and hand placement harder.
- Use an alternate route for large rigid items.
What Fits?
Small moving box
Works if carried close to the body.
Folded chair
May work if light and narrow.
Mattress
Too awkward for the steep stair path.
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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