Australian Timber Deck Span Tables

Technical diagram on page 35.

Australian timber deck span tables. For simple construction such as domestic construction this can be determined from span table supplements in as1684 2 and as1684 3. Span tables f7 rafters a maximum roof pitch of 25 degrees is assumed. Wind classification 1 n2. Tq recommends a maximum mc of 15 for residential decking.

With the relevant australian standard for structural exterior products listed below. Deck joists f7 42mm 31 deck bearers f7 32 deck bearers gl8 32. Timber finger joints in structural. Hardwood 10 to 18 softwood 10 to 15.

These span tables have been developed in good faith with the assistance of mr peter falvey b e m i e aust c p eng r p e q 579 in accordance with the relevant australian standards however please check for state and local government variations. Decking boards shall be seasoned to the requirements of the applicable australian standard i e. Table 2 timber posts 1 supporting roof and or floor loads. 1 refer to general notes for information that is relevant for all span tables.

These span tables are only for use in conjunction with taranakipinetm timber products. Stress grades and timber sizes combine to determine the spanning ability of load carrying members. 2 for design parameters refer to figure 7 26. 3 where rafters are equal to or exceed four times their breath blocking should be used to reduce distortion.