Cut Roof Sheathing Opening

What happens here

After preparing the underlayment, mark the exact dimensions of the opening required on the roof sheathing. Using a Makita 36V circular saw, carefully cut through the roof sheathing (typically plywood or OSB) to create the main opening for the post anchor. Ensure the depth of the circular saw blade is set correctly to cut only through the sheathing and avoid damaging anything below. For any intricate or hard-to-reach cuts, an oscillating multi-tool can be used to refine the opening. Remove the cut-out section of the sheathing once complete.

Goal: Create the main opening in the roof sheathing