Gable Roof Pergola Span Table

Pergola or carport beams tables 2l and 2h list the sizes and spans for pergola or carport beams in low wind speed and higher wind speed areas.

Gable roof pergola span table. 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. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. These span tables are designed for a minimum post size of 50 x 50 x 2 5mm up to a maximum height of 3 0m. Patio roof maximum beam rafter spans beamsmeasuring pergola dimensions learn the standardwhat is max distance between posts using 2x12x20 foot beams for apergola beam span calculator pergolacanopyideas pergolayou measuring.

Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Tables 13 14. Technical diagram span tables f7 rafters on page 35 30mm m aximum allow able sp ans mm sheet roof spacing mm rafter size 600 760 900 1000 1200 66 x 30 1250 1150 1050 1000 950 90 x 30 1650 1550 1550 1400 1300 138 x 30 2600 2300 2150 2000 1800 185 x 30 3000 2650 2450 2350 2150 230 x 30 3050. So this table could accommodate a house with a total rafter span or house width of 32 feet.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. The spans in this table are based on a maximum supported rafter span of 16 feet where the supported span is the total horizontal distance spanned by the roof rafters divided in half not the diagonal distance or the length of the rafter. Allowable load tables. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

Refer to general notes for information that is relevant for all span tables. Spantec has prepared these tables for use by people skilled in the design and specification of the type of. A maximum roof pitch of 25 degrees is assumed. Headers beams.

Pergola beam spans wind classification n1 n2 roof load width rlw 1800 2400 3000. Table 2l pergola or carport beams wind classifications n1 n2 n3 and c1 member size roof load width 1500 3000 4500 6000 1500 3000 4500 6000 maximum beam span mm single span continuous span. Where rafters are equal to or exceed four times their breath blocking should be used to reduce member distortion. 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.