Timber Floor Beam Sizes

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

Timber floor beam sizes. Barn wedding venue construction is a very popular use for our timber beams as well. Span tables for domestic floor joists to bs 5268 7 1 note. Our beams are sold by the linear foot lf up to 40 lf available in even lengths. Staggered pattern with at least a 3 x 120 nail.

Floor joists or beams provide the below surface support for the wood subfloor of a room. These tables are provided as a guideline. Beams of more than one ply must be fastened together with either nails or bolts. Aitc beam capacity tables.

For any other situation these tables may not be appropriate and you should refer to the. We have learned from our experience to use at least a 3 1 4 x 131 groove shank nail in a column of four every foot apart down the laminate. The 2012 irc code calls for a minimum of a 32 o c. This table is simply a sample and may not be valid for your region.

The full table shows more lumber sizes. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Common timber sizes used in floor construction. Raised floor homes look great and protect homeowners against risks from flooding and subsiding soils.

This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. Table specifications are provided with each table indicating conditions and assumptions used to calculate the loads. Numbers in blue are joist spans beam to beam or house to beam. A 2 2x10 can span 10 feet and so on.

Headers beams. Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1. The numbers in gray indicate the distance between the support posts. Sample floor beam span table.

Though joists may be any size that you desire using typical floor joist and beam specifications ensures that you can find hardware to fit the joists and that the floor provides adequate support for furniture and other items in a room. Both diyers and building professionals will like these garden and outdoor living ideas and plans. A double 2x12 beam can span 12 feet. All the figures are based on normal domestic floor loadings where the floor construction is typically 18 25mm floor boards sheets with up to 12 5mm thick plasterboard and skim underneath.

There are several beam span tables for all the species of wood. Dimensional lumber deck beam span chart.