Gable Angle Siding Template

The Problem

Near the peak of a gable, every siding course is a different length with an angle cut on each end. Measured one at a time, that's a full ladder round trip per piece — measure, climb down, cut, climb up — for the shortest, fussiest courses on the wall, and worse working off a roof.

The Technique

1. At the current course, measure the nailing strip end to end — the creator's read 98-3/4". Come down with that one number.
2. Cut the piece to that length with square ends first, so the offcut stays usable, then make the gable-angle cuts on each end with your template (how to capture the angle and make the template).
3. Build the next course off the one you just cut: lay a long-enough piece under it, align one end, and scribe the cut line off the finished piece's edge — each course shrinks by the same amount, so the previous piece is the pattern for the next.
4. Repeat until you're holding three or four runs, then make one trip up and hang them all. Test-fit before nailing.

With a second person, one cuts at the saw station while the other installs; alone, the trust-your-template version saves the same climbing.

The Problem

Siding a gable end means every course terminates in the same roof-pitch angle, and the textbook routes — pitch math, or a bevel gauge you have to keep re-checking — are slower than the job deserves. What you want is the angle captured once, physically, off the wall itself.

The Technique

This crew pulls the angle straight off the gable with nothing but a tape:

1. Slide the square-cut siding piece up into the gable until its corner touches the raked roofline.
2. Measure the offset the rake creates along the piece — take the measurement at the bottom edge.
3. Transfer that same measurement onto the top edge of the piece.
4. Connect the transferred mark back to the corner where the piece touches the rake, and you've drawn the roof pitch across the board.
5. Cut the line — and keep the offcut. Its cut edge is the pitch angle, so from here on you lay the offcut on each new piece and trace, no more measuring.

The first piece costs one measurement; every piece after costs a pencil swipe.