Patio Roof Maximum Beam & Rafter Spans

Table of maximum rafter spans for a patio roof.

An essential part of planning a patio roof or gazebo project is determining the number, size, and spacing of rafters, beams, and posts, according to the loads they will carry. In areas with mild climates, patio roofs are generally designed for loads of 30 psf (pounds per square foot). For heavy roofs or in areas […]