Plumb Cut vs. Heel Cut

intermediate

The two rafter angles: the plumb cut matches the pitch angle, the heel cut is its 90-degree complement, plus the bevel when meeting an existing roof.

Staggered-Stud Sound Wall

intermediate

2x4 studs alternating on a 2x6 plate so no stud touches both faces — decoupling the drywall layers for sound isolation.

Cutting Blocking in Place

intermediate

Using the circular saw's shoe-to-blade offset against the stud to plunge-cut wall blocking to exact length without measuring.