Laminated Timber Beams Span Tables

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Laminated timber beams span tables.

Simplified span tables for southern pine lumber and glued laminated timber glulam headers beams and girders. For simple construction such as domestic construction this can be determined from span table supplements in as1684 2 and as1684 3. Span tables for purlin supporting rafters to bs 5268 7 6 imposed loads of 0 75 kn m snow load are applicable to most areas where the altitude does not exceed 100 metres refer to bs 6399 3 imposed loads of 1 kn m snow load are applicable to most areas where the altitude exceeds 100 metres but does not exceed 200 metres but excluding parts of scotland pennines north east england. The following examples which apply to solid timber members give an illustration of how to use span tables for domestic floor joists at 400mm centres.

View joist rafter tables. Beams of more than one ply must be fastened together with either nails or bolts. Span tables determine the size of a timber member of a particular strength class required for a given span as well as the maximum spacing between each section or timber member. Span tables allow users to choose an appropriate size and stress grade to achieve spanning needs.

View size selection tables. Our experienced support team can assist with enquiries ranging from beam sizing to installation advice. Can t find what you are looking for. View allowable load tables.

If you are looking for span tables design guides install guides product catalogues or safety data sheets then you ve landed on the right page. Other more complex load condition spans can be determined with our free hyne timber design 7 5 software. Glulam span tables strength grades click here for a download of strength grades available and some span tables for varying load conditions. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

Staggered pattern with at least a 3 x 120 nail. 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. These tables are intended for preliminary design only final calculations should be carried out by an engineer. The 2012 irc code calls for a minimum of a 32 o c.

Fwpa timber service life design guide. Use the single span tables for the purpose of obtaining the appropriate size.