6x6 Beam Span Chart

Staggered pattern with at least a 3 x 120 nail.

6x6 beam span chart. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Refer to the deck beam span table below to assist in determining the maximum span of a given beam between posts. View joist rafter tables.

The figures are based on quality materials. The tables below give maximum spans for rafters and beams. However as someone else mentioned it is the width which is most important for spanning a distance.

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. Obviously the larger the beam the greater the distance it can span between posts. Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video.

A double 2x12 beam can span 12 feet. A 2 2x10 can span 10 feet and so on. On longer spans the beam may require much more bearing space as indicated by this table.

Repetitive member fb design values are used in design when three or more load sharing members such as joists rafters or studs are spaced no more than 24 apart and are joined by floor ing sheathing or other load distributing elements. You have essentially sistered 3 2x6 beams actually a little more because each 2x6 would only be 1 5 wide whereas a single 6x6 is 5 5 wide. The numbers in gray indicate the distance between the support posts.

The 2012 irc code calls for a minimum of a 32 o c. For lesser grades spans should be shorter. Beam may be solely responsible for carrying a specific design load.

Pergola beam span calculator pergola beam span calculator patio roof maximum beam rafter spans measuring pergola dimensions learn how to build a pergola in two days on. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine.

Numbers in blue are joist spans beam to beam or house to beam. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Dimensional lumber deck beam span chart.

Keep in mind that these are maximums in other words shortening spans slightly will result in a more solid structure. Beams of more than one ply must be fastened together with either nails or bolts.