How-to-frame-a-gazebo-octagon-roof, timber frame style pavilion gazebo for backyard or patio - post and beam - duration: 19:27. man about tools 508,802 views. Octagon gazebo roof scaled down model for rafter / joint / style / illustration purposes., there's no denying that an octagonal turret roof is a challenging project. for builder rick arnold, taking a little more time to understand the framing was all he needed to get started on a successful project. learn rick's method for framing an octagonal turret roof.. Top tip: framing a roof for an octagonal gazebo is a complex job, but any person with average woodworking skills can get it done in several days. make sure you use professional tools and quality materials, if you want to obtain a neat result.