Framing Square Stair Stringer Layout

In your layout note.

Framing square stair stringer layout.

Align the rise and run measurements on the square with the edge of the stringer. Trace out the unit rise and unit run as shown by the measurements on the square. This will create a stair stringer calculator. A very important part of building stairs is the layout of the stringers.

How to cut stair stringers with a framing square. This will establish the starting point for the stringer. The bottom riser is 1 1 2 in. If you ve done the math it s grade school stuff and the layout right the tread cuts will be level and the riser cuts plumb.

Shop all framing squares from johnson level. This allows you to make multiple copies of the same angle time and time again once you set them and screw them tight into your square that is. The top tread is 3 4 in. You use a framing square to draw the stair s notches on the stringer then you cut them out.

The images below show how a framing square is used to lay out the stringers c and a how the first stringer is used as a pattern for the remaining stringers d. The essence of laying out stair stringers is straightforward. How to use a framing square for angles. Laying out steps with a framing square.

The standard two foot framing square also referred to as a carpenter s square and historically as a steel square is an l shaped tool that is used to mark angles for cuts used in building framing particularly roof rafters stair stringers and many other cuts or angles other than 90. Shorter than the other risers. Laying out stairs with a framing square. Also known as a steel square the johnson framing square is a handy tool for carpentry.

Pros recommend a width of 16 between stringers but depending on the stairs and the thickness of the tread that figure could be slightly higher. As for the length of the stringers take the total height the stairs need to be and square that value. Get a carpenters framing square and if you have little buttons that clamp or screw onto the square even better. Framing squares accessories fine tools how to layout and mark stair stringer framing square stair layout tread mark stairway construction stringer layout using framing square stair building tips you learn how to build stairs.

Its uses extend into framing and laying rafters and stairs. Shorter than the other treads. A 42 wide outdoor set of stairs should have 3 stringers 2 x 12 typically. The stringers should be cut from 2 x 12 framing lumber 1 grade free of knots.

Screw them onto a framing square once you know your rise and run such as for stair stringers.