When building a deck we use the last column of the table. Deck Bearer And Joist Span Tables Australia. Prolam Beams Verandah Rafters Span Table 43 KB pdf; PL8 Posts supporting verandah roof only light roof attached to house. Deck Bearer And Joist Span Tables Australia. Decks may need to meet other requirements so check your design meets all the NZS 3604:2011 requirements. Your email address will not be published. I'm planning to build a deck (9.4m x 5.6m) close to the ground using galvanised stirrup posts. Pergola Rafter Spans for 600 mm and 900 mm Spacing. Span requirements ensure your deck won't sag or collapse during a party or under snow load. I have many times used 190x45 single member bearers on decks spanning up to 3 metres and they are as solid as a rock. Maximum deck joist span is based on supporting a maximum decking mass of 20 kg/m2, imposed point load of 1.8 kN, imposed distributed loading of 2 kPa and 450 mm joist spacing. Depending on the working height, bearer size and span and type of timber deck you want will dictate the best size and span of joist. JOIST SELECTION CHART Joist Size Maximum joist span between bearers at specified joist spacing 450mm 600mm 90 x 45mm 1.15M 1.00M 140 x 45mm 1.85M 1.60M 190 x 45mm 2.50M 2.15M 240 x 45mm 3.15M 2.70M 290 x 45mm 3.80M 3.30M When you rest each joist on the stringer on the side of the house please refer to the design manual for comprehensive joist/bearer & cantilever span information. Depth × Breadth (mm) Single Span Continuous Span 2/90×35 1500 400 1000 300 NS NS 1500 400 1000 300 NS NS This video shows you how to use Hyne Timber Design 7.5 to calculate the span required for a deck joist. MAXIMUM LOAD AREA (M²) Bearer Width Support Height (Mm) 2 Span Continuous 3 Span Continuous 70mm 290 3.2 3.6 The correct bearer sizes can be found in span Table 49 in AS1684. Deck joists selected from NZS 3604:2011 Timber-framed buildings Table 7.1b (wet in service) require lateral support at mid span when they span more than 2.5 metres and have a depth of four or more times their thickness (clause 7.1.2.3). Codes specify maximum spans according to the type of wood used. Floor Load Width Size (mm x mm) Bearer Span (mm) - 4.0 kPa Uniform Live Load / 4.5 kN Point Live Load Bearer Span (mm) - 5.0 kPa Uniform Live Load / 13 kN Point Live Load Single Span Continuous Span Single Span Continuous Span. For bearers supporting decks up to 1000mm above ground refer to Table 5 For continuous spans, the adjacent bearer spans may be different, but look up the larger of the spans, and the shorter span must be more than 50% of the larger span. 1.5.1 Span Capacity ... AS 3660.1 requires the bearer and joist of the deck to provide a gap of 25 mm between the wood surface and the building envelop (Figure 4). Dig holes 600mm deep, place stumps on 230 x 230 x 100mm deep bed of concrete. Span tables allow users to choose an appropriate size and stress grade to achieve spanning needs. These tables assume a minimum end bearing of 50 mm by bearer width, and intermediate bearing of 100 mm by bearer width for conti nuous bearers. Ive priced up a few kits but they all use C…. 15-year durability is required for other deck elements including handrails, balustrades and decking. Although it is fairly easy to calculate floor joist centres, it is just as easy to mess it up! • If a bearer is supporting roof loads through joists, a Roof Load Width of 8000mm shall be used to determine the bearer spans. Span Cant. See the Deck Post Size Table to make that determination because it will affect the size of beam you choose. but he should install perpendicular to existing floor boards It’s almost a year and a half since installation. (579) in accordance with the relevant Australian Standards, however please check for state and local government variations. For simple construction, such as domestic construction, this can be determined from span table supplements in AS1684.2 and AS1684.3. Fig.6 Cantilevered deck construction MATERIALS REQUIRED FOR PROFILES Maximum Bearer Span (mm) Single Span Continuous Span Sheet Roof - These span tables … These span tables have been prepared for a range of flooring and roofing applications in non-cyclonic wind regions using Boxspan® steel beams and brackets produced by Spantec Systems Pty Ltd. 2. Wind Classification N1 & N2. Seasoned Softwood Floor Bearer Spans for Balconies & Decks – Revised Loading Floor Load Width (mm) 1200 2400 4800 1200 2400 4800 Maximum Bearer Span (mm) Span Cant. Lay Bearers and Joists. 2 Contents Mr Jason H ansen Wood house T imber Company PO Bo x 487 Mt O mmane y QLD 4074 “e WOODHO USE WEATHERPROOF SPAN T ... 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