Lay and Fasten Subfloor Plywood

What happens here

This is the main task of creating the subfloor. Workers systematically lay down large sheets of plywood. They begin by measuring the area and marking the plywood for precise cuts using a pencil and tape measure. A circular saw is used to cut the plywood to fit around existing structures or to create the correct length/width for the runs. After cutting, construction adhesive is applied in a wavy bead along the top of the floor joists where the plywood will sit. The plywood sheet is then carefully placed onto the joists, ensuring tongue-and-groove edges (if applicable) interlock properly and that seams fall on joist centers. Finally, the plywood is fastened to the joists using a nail gun or an impact driver with subfloor screws, spaced according to building codes (typically every 6 inches at edges and every 12 inches in the field). The process is repeated until the entire floor area is covered.

Goal: Install and secure all plywood sheets to form the subfloor