In our example you would need to mark it at 7 3125.
Build 2 step staircase.
Attach the bottom riser into each stringer and check the squareness of the stair.
Build your bottom step twice as wide as a single step.
Modify the top of the stringer to.
Don t cut it down to length just yet.
For each stair cut 10 treads from 2 x 10 lumber and 7 risers from osb sheets.
Stringers also known as stringer board are the outer part of the staircase housing.
Build your top step as you would for a single step.
Lay out a sufficiently long piece of 2 in 12 in 5 1 cm 30 5 cm lumber.
Fasten the two frames together with the back framing members flush with each other.
You will need one box for each step.
Cut three stair stringers from 2 x 12 lumber to accommodate a 3 1 2 stair height.
Pre cut stair stringers are available in a variety of.
They keep the stairs secured on.
Cutting the stringers 1.
The bottom riser will probably need to be cut to custom height.
Cut a notch in the bottom of the stringers to fit over a piece of 2 x 4 lumber making sure to cut the notch in the same place on each stringer.
Double box steps are built using the same techniques as for a single step.
When starting the staircase construction you ll need to decide how the stringers will connect to the upper and lower.
Easy and cheap shed stair steps using two boards replaced broken uneven cinder block steps for our shed with these quick and easy steps made from one 2x6x10.
Mark a carpenter s square to the height and depth of your steps.