Industry Ideas and Tips
Cutting Stair Stringers
Mon Dec 07 1998
1. Measure from Finished floor to finished floor. (height)
Riser Height should measure between 7 & 8 inches.
Riser Height + Tread Cut should measure between 17-1/4 to 18-1/4 inches. (Minimum to maximum)
Note: You always have 1 more riser than tread because youre top step is a finished floor or deck.
Note: Always allow 1-1/4 overhang on steps.
Example: Floor to floor height of 47-1/4
47-1/4 divided by 8 inch (maximum riser height) = approximately 6 treads.
Use of 11-1/4 treads 1-1/4 over hang = 10 tread cut on your riser.
47-1/4 divided by 6 = 7-7/8 riser cut.
Check: 10 tread cut + 7-7/8 riser cut = 17-7/8 (which falls within the range of 17-1/4 minimum to 18-1/4 maximum.
2.Cut, assemble and install stair stringers and treads as needed. Lumber, tools and videotape instructions are available for purchase and viewing at our store.
1. Tape measure or wood rule.
2. Square with adjustable gages.
3. Hand saw and/or power saw.
4. Hammer, nails and pencil.
5. Plumb bob and string
6. Level and Apron