A stair tread should be at least 9 inches deep.
Making stairs wider.
Some builders use the 7 11 rule to create comfortable and safe staircases.
Attach the other gauge to the body of the square at the run dimension.
The 7 11 rule means the risers or vertical boards at the back of each step are no higher than 7 inches.
When you notch stringers you weaken them.
This will create a stair stringer calculator.
The wider the treads the more total run the stringers have to span.
Secure the treads to the steps of the stringers with 2 5 in 6 4 cm screws over each stringer.
It s not as difficult as you.
The landing is made of concrete pavers set in a sand bed.
This includes the recommended 3 4 to 1 1 4 inch overhang.
As long as the 3 foot width standard is met you can expand the stairs width as far as you wish.
Clamp the stair gauges to the carpenter s square.
Clamp one stair gauge on the square s tongue directly at the rise dimension.
At the same time staircase code measurements do allow for some flexibility since most measurements are accompanied by minimums or maximums.
The tongue is the narrower leg of the framing.
For a typical staircase the stair tread must measure 8 1 4 inches to 9 inches deep measure 1 inch thick or more and have a maximum 1 1 2 inch deep nosing.
If your treads are 10 inches wide and do not overhang you can add a 1 1 4 inch overhang by replacing them with treads made from 1 by 12s that are actually 11 1 4 inches wide.
Now when handrails are introduced they shall not project more than 4 inches on either side.
The stair riser must measure 8 to 8 1 4 inches high.
For stair treads less than 9 inches deep secure a new deeper tread directly on top of the existing tread.
Use the narrow part of the square for clamping the riser gauge and the wider part for the 10 1 4 in.
Lay out the stairs by drawing on the outside of the square sliding the square along until it meets the last mark to learn how to build steps.
Building codes typically require that stair treads be within 3 4 inch of 10 inches wide.
Cut lumber to be at or slightly longer than the tread run in width and as long as the stairs are wide or just wider if you prefer a slight overhang on the ends of your stairs.
Staircase code states that stairs must be 3 feet wide or wider.
Most interior steps are built from either hardwood composite material or plywood and can be remodeled for more width.