ANY DECK OR BALCONY 1.5 M OR MORE ABOVE CLEARED GROUND LEVEL REQUIRES A BUILDING CONSENT. Deck Bearer And Joist Span Tables Australia. According to table 7.2 a 140x45mm joists that are spaced at 600mm centres can extend up to 900mm past the last support. The standard says the bracing units must be spread evenly across the deck where possible. finished deck height – thickness of decking – joist size – bearer size + hole depth = min pile length. Cut the 150 x 50 mm end joists to the width of the deck less the thickness of the 150 x 50 mm boundary joist. Bearer span Continuous span shown here Floor load width (0.5x joist span) Roof width. Secure bearer to posts firstly using skewed 100mm nails. the 450mm measurements given) and these are always centre to centre. Bearer Size*: Onestopdeckshop recommend and stock 90mmx90mm or 100mmx100mm H4 treated pine bearers but you can also use Two 90mmx45mm, Two 100mmx50mm, 140mmx45mm, 150mmx50mm, 190mmx45mm, 200mmx50mm. Built something using our calculators? Select output Fraction Precision, Decimal Inch or Metric mm. Quantity: Add for Delivery. ... Run a bead of glue down the length of one bearer. Click Slider to select then use keyboard cursor keys, Create and Print Full Scale PDFs with diagrams on this page (templates), Copy all diagrams on this page to bottom of page - Make multiple copies to Print or Compare Results. Joist Spacing for Composite Decking. SmokyJoe. Note if you wanted to space the … Gaps adjusted to fit full width boards, equal to or nearest larger than entered Min. Zoom to adjust screen scale to actual size (measure full scale diagram with ruler) and hit 'Set' to set scale on other pages. Place it on top of the other bearer and line them up so they’re flush. Set up the bearer spacings at a minimum of 1800mm centres with stump holes no more than 1500mm apart. Then divide this measurement by the maximum floor joist spacing that is mentioned on your drawings. The OP did ask about the joist spacing (i.e. Allows wastage calculated from board length and joist spacings only. 450mm Spacing) Timber Grade, Species Member Size (mm) Maximum Bearer Span (mm) F7 Timberlink Green 140x45 2/140x45 190x45 2/190x45 240x45 1300 1900 1750 2600 2450 *Table … You’ll need one either side. This gives you a little extra to make sure the piles aren’t too short. NZS 3604 Table 6.4. Run a bead of glue down the length of one bearer. Or lay individual pieces on the posts to make up the bearer. Following on from our previous example, our joists are going to span 1.8m (see below) between the support of our bearers. It will be free standing, low lying and will be spaced about 40mm away from the house for termite inspections. FIXINGS All bolts , screws, nails, brackets, framing anchors and other hardware should be hot dipped galvanised or stainless steel. Remember to complete all calculations using millimetres. *Single span however the bearer spacing above is not applicable and you should consult a registered engineer for appropriate bearer sizes. Using the diagram above we work out the loaded dimension for the bearers: As with the joists we must use the 2 kPa floor load figures. Check stock in your local store Saved to Project List. SPACING BETWEEN PILES ALONG THE BEARER MAXIMUM SPAN OF PILES BEARER SIZE 1.45M 100 x 75mm 2.35M 100 x 100mm or two 100 x 50mm 3.45M 125 x 100mm or two 125 x 50mm 4.65M 150 x 100mm or two 150 x 50mm Fitting the Joists You can see from Fig.6 that the deck cantilevers over the last bearer to produce an overhanging deck. As determined by the size of the bearers and joists, our pile spacings are: When determining the best length piles to get you can work out what the height of the finished deck is minus the thickness of the decking and size of the framing timber plus the depth of the hole you want to dig. 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