Window Rough Opening Diagram. The adjacent diagram shows a traditionally framed window opening from a recent project. 1Make horizontal cuts to the Weather Resistive Barrier WRB across the top and bottom of the Rough Opening.
Window framing is all about protecting the window while channeling loads from above around the window rough opening and down to the floor. Sliding window horizontal widths are available in 36in 48in 60in 72in and 84 inches. Measure the width across the bottom of your window opening between the inside faces of the framing on each side.
Mark this point on the studs.
Make sure you only open the packs which are specific to the window or door you are going to install at the very moment. Always use appropriate lifting techniques. 1Make horizontal cuts to the Weather Resistive Barrier WRB across the top and bottom of the Rough Opening. Circle the smallest measurement of the three figures this is your rough opening height.