← Guide
install treads on a curved staircase
Step 2 of 3
Step 2 · Measure Each Unique Step with Care
Start by measuring the width of the step at its widest point, which is usually the outer edge. Let your flexible tape follow the curve for an accurate reading. Next, measure the depth from the front edge (we call this the 'nosing') to the back where it meets the riser. Use your protractor or angle finder to capture the curve's angle. A crucial tip for success: always measure from the same reference point on every step. This consistency is what ensures your new treads will look uniform and beautiful.
Every tread must be measured individually; don't assume they're identical, and use a flexible tape to follow the curve.
On spiral staircases, pay close attention to the changing tread depth as you move towards the central pole.
On spiral staircases, pay close attention to the changing tread depth as you move towards the central pole.
If a protractor is not available, a level and tape measure can be used to determine rise and run, from which the angle can be calculated.
If a protractor is not available, a level and tape measure can be used to determine rise and run, from which the angle can be calculated.
General Hazard
Inconsistent measurement points will lead to ill-fitting treads.
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