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Learn the layout.
Then make the cut.
Practical carpentry notes for getting the measurements, stair geometry, and stringer layout right before good lumber meets a saw blade.
How to measure total stair rise
Measure finished floor to finished landing correctly before calculating stair risers, treads, run, or stringer length.
Standard vs. flush top-tread mounting
Understand how standard landing and flush top-tread configurations change tread count, total run, stringer length, and attachment planning.
How to calculate the first stringer rise
Learn why tread thickness is subtracted at the bottom stringer cut so every finished stair riser remains equal.
How to lay out a 2×12 stair stringer
A practical sequence for transferring rise and run measurements to a 2×12 while protecting the stringer's remaining throat.
Seven common stair-layout mistakes
Catch the measurement, tread, mounting, layout, and cutting errors that can ruin a stair stringer before the first board is installed.
Ready to calculate?
Turn the method into a cut list.
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