Floor Joist Span Tables Australia

Tables such as those for rafters floor joists and ceiling joists require.

Floor joist span tables australia. Technical diagram on page 35 30mm m aximum allow able sp ans mm sheet roof spacing mm rafter size 600 760 900 1000 1200 66 x 30 850 750 700 700 600 90 x 30 1200 1050 1000 900 850 138 x 30 1700 1550 1400 1300 1200 185 x 30 2000 1750 1600 1550 1400 230 x 30 2000 1800. The joist span table below is for joists with a continuous span on a deck below 1metre in height. Posistruts are the ideal flooring and roofing solution especially where height restrictions apply. Cantilever cantilevered joists have been designed to support a live load of 3 0kpa for balconies.

Placing a layer of 110 mm malthoid dampcourse or proprietary protecti on system on top of the joists will increase the service life of the joist refer figure 2. Span tables allow users to choose an appropriate size and stress grade to achieve spanning needs. There are many differing span tables available it s recommended that you enquire about those that relate to your area. Stress grades and timber sizes combine to determine the spanning ability of load carrying members.

Use the single span tables for the purpose of obtaining the appropriate size. Deck joists span tables using hyne timber design 7 5 you low level deck bunnings work community building a deck evcricket s blog residential timber decks using porta aru. Joists continuous span beam. Joists of 35 mm or 38 mm width are only suitable where proprietary deck fi xings are used which a fi xed to the side of joists.

Span tables f7 rafters a maximum roof pitch of 25 degrees is assumed. Please refer to spacing diagram above each table. Span tables are made up of variables based on the engineering within the timber framing code of australia. More and more architects are specifying mitek posistruts because they deliver the ultimate in design versatility.

Table 6 floor joists continued 140 joist spacing mm 450 600 maximum joist span and cantilever mm span cantilever span cantilever continuous spans continued 85 x 40 1900 400 1700 375 90 x 35 1900 400 1700 375 90 x 45 2100 450 1900 400 120 x 35 2600 550 2400 500 120 x 45 2900 600 2600 550 joist size depth x breadth mm note. The provision of replacement product in australia. Dindas joists are strong light weight easy to install and available in a wide range of sizes. Span tables for floor joists rafters and ceiling joist are determined using their spacing centre to centre to determine their respective spans.

Joist sizes can be found in the span tables 50 in as1684. For simple construction such as domestic construction this can be determined from span table supplements in as1684 2 and as1684 3. The full terms and. Engineered i joists from dindas are cost effective and lightweight perfect for residential and commercial construction.