International Residential Code (IRC R311.7)20 Verified Stringer Schedules
Stair Stringer & Rise/Run Cut List Directory
Deterministic framing schedules for interior residential stairs, basement flights, and exterior deck steps. Select your total vertical rise or ceiling height to view exact step counts, riser heights, horizontal run spans, and 2x12 stringer cut dimensions.
Interior Residential & Basement Ceilings (7ft to 10ft Rise)
7-Foot Basement Ceiling Stair Stringer
Risers: 11 steps @ 7.64" rise
Run: 8.3 ft (100")2x12 × 12ft
7.5-Foot Basement Stair Stringer (90" Rise)
Risers: 12 steps @ 7.5" rise
Run: 9.2 ft (110")2x12 × 14ft
8-Foot Ceiling Stair Stringer (106" Rise)
Risers: 14 steps @ 7.57" rise
Run: 11.4 ft (137")2x12 × 16ft
108-Inch Rise Stair Stringer Calculator (9ft Floor-to-Floor)
Risers: 14 steps @ 7.71" rise
Run: 11.4 ft (137")2x12 × 16ft
8.5-Foot Ceiling Stair Stringer (114" Rise)
Risers: 15 steps @ 7.6" rise
Run: 12.3 ft (147")2x12 × 18ft
9-Foot Ceiling Stair Stringer (118" Rise)
Risers: 16 steps @ 7.38" rise
Run: 13.1 ft (158")2x12 × 18ft
120-Inch Rise Stair Stringer Calculator (10ft Floor-to-Floor)
Risers: 16 steps @ 7.5" rise
Run: 13.1 ft (158")2x12 × 18ft
9.5-Foot Ceiling Stair Stringer (126" Rise)
Risers: 17 steps @ 7.41" rise
Run: 14.0 ft (168")2x12 × 20ft
10-Foot Ceiling Stair Stringer (130" Rise)
Risers: 17 steps @ 7.65" rise
Run: 14.0 ft (168")2x12 × 20ft
132-Inch Rise Stair Stringer Calculator (11ft Floor-to-Floor)
Risers: 18 steps @ 7.33" rise
Run: 14.9 ft (179")2x12 × 20ft
Exterior Deck & Patio Stairs (2ft to 7ft Elevations)
2-Foot Deck Stair Stringer (24" Rise)
Risers: 4 steps @ 6" rise
Run: 2.8 ft (33")2x12 × 8ft
2.5-Foot Deck Stair Stringer (30" Rise)
Risers: 4 steps @ 7.5" rise
Run: 2.8 ft (33")2x12 × 8ft
3-Foot Deck Stair Stringer (36" Rise)
Risers: 5 steps @ 7.2" rise
Run: 3.7 ft (44")2x12 × 8ft
3.5-Foot Deck Stair Stringer (42" Rise)
Risers: 6 steps @ 7" rise
Run: 4.6 ft (55")2x12 × 8ft
4-Foot Deck Stair Stringer (48" Rise)
Risers: 7 steps @ 6.86" rise
Run: 5.5 ft (66")2x12 × 8ft
4.5-Foot Deck Stair Stringer (54" Rise)
Risers: 7 steps @ 7.71" rise
Run: 5.5 ft (66")2x12 × 8ft
5-Foot Deck Stair Stringer (60" Rise)
Risers: 8 steps @ 7.5" rise
Run: 6.4 ft (77")2x12 × 10ft
5.5-Foot Deck Stair Stringer (66" Rise)
Risers: 9 steps @ 7.33" rise
Run: 7.3 ft (88")2x12 × 10ft
6-Foot Deck Stair Stringer (72" Rise)
Risers: 10 steps @ 7.2" rise
Run: 8.3 ft (99")2x12 × 12ft
7-Foot Walkout Deck Stair Stringer (84" Rise)
Risers: 11 steps @ 7.64" rise
Run: 9.2 ft (110")2x12 × 14ft