This video will provide you with a simple mathematic.
Stair stringer board size.
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Easy to use free stair calculator by ez stairs.
Lay a framing square flat on the board so that the horizontal blade aligns with the top edge of the board at the length of the tread and the vertical blade is aligned at the length of the riser.
One of these tools will allow you to lay out consistent precise angles down the length of the board.
I am about to trace them out on the wood and assumed that i should use 2x10 wood but i m second guessing myself and thinking maybe i should use 2x12 wood for the stringers.
Provides a step by step display and a print out option showing the finished stringer with cut dimensions and a materials list.
I am building a set of stairs that is going to a platform that is only about 4 ft high.
What size of wood do i need to build stair stringers.
Outside frame or flush frame select.
The stringers must be cut to fit the stair opening in length and in width with the riser cuts plumb and the tread cuts level when the stairs are in place.
Two boards 5 4x6 two boards 2x6 one board 2x12 deck joist size.
Use a framing square to trace the stair pattern on your stringer board.