Straight stair
stairs
Preview at 1/4" = 1'-0" scale
About
Single-flight straight stair with tread indicators and UP arrow. 4' × 10' default fits 14 treads at 10" each per IRC R311.7.5.
Specifications
| Default size | 4' wide × 10' deep × 8.1' high |
|---|---|
| Elevation off floor | 0' |
| Ceiling clearance | 6.67' |
| Drafting standard | NCS V7 §Stairs; AGS Stair Symbols; IRC R311.7 |
| 3D-ready | Yes |
Interaction in plans
- Hover for tooltip
- Click for details
- Drag to relocate
- Swap to another symbol
- Rotate (0/90/180/270)
Codes & best practices
RequiredRequired when this symbol is placed
Stair riser, tread, and headroom
IRC R311.7 · ICC
Stairs must have a riser height of 7-3/4 inches maximum, tread depth of 10 inches minimum, and headroom of 6'8" (80 inches) minimum measured…
TypicalTypically applies
Stair access from circulation
LS-STAIRS-01 · ICC
Multi-story homes must have stairs accessible from a hallway or open circulation space on every floor, with minimum stair width 36 in.