Stair type overview
Folding Stairs
22 in usable width, 80 in headroom. Folding attic stairs are for small attic items, not furniture moves.
utilitysimple navigation
Typical Stair Measurements
Clear width
22"
Tread depth
4"
Riser height
9"
Headroom
80"
These are planning defaults. Measure your real stairway before buying, moving, or booking delivery.
Fit Notes
- The hatch opening is usually more restrictive than the stair itself.
- Steep angle and narrow width make bulky items unsafe.
- Check the ladder weight rating.
What Fits?
Storage tote
Works if the tote clears the attic hatch.
Small lamp
Only if protected and narrow.
Mattress
Too large for the hatch and ladder.
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.
Open Stair Fit Calculator
