16 Foot Roof Rafters

Top chord live load snow and other temporary loads top chord dead load roofing materials weight of the truss itself other permanent items attached to the roof bottom chord live load storage and bottom chord dead load insulation ceiling.

16 foot roof rafters.

Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. The roof rafters provide integral structural support to the roof. Just keep in mind that if the length of the board size is more than 20 feet then you need to use a more expensive type of lvl board and not a traditional pine. Truss capacity is listed by pounds per square foot based on the following load rating criteria.

Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. Just enter the dimensions of the roof rise and run to get started. Depending on the complexity of your free computational tool it may require you to enter details about rafter spacing usually 16 on center bridge type height and board size. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more.

It is always better to have a large rafter rather than be concerned with a sagging roof. A truss for a gable roof on one side of your home for example might need to be 15 feet 4 6 m long and 4 6 feet 1 2 1 8 m tall. The dimensions of your structure will determine the angles formed by the truss s top and bottom beams or chords.