Timber Deck Bearer Span Tables

Residential Timber Decks Using Porta Aru. The grade and species of lumber size of lumber and the load it carries.

How Far Can A Deck Joist Span Deck Framing Building A Deck Deck Construction

Fewer posts on upper-level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans.

Timber deck bearer span tables. Selecting the correct timbers and the layout of your deck is relatively simple once you are able to interpret these tables which are based on engineering calculations that are far too complicated for most non engineering types. Joist spans and sizes continued 1200 2400 4800 1200 2400 4800 Floor Load Width mm Maximum Bearer Span mm Single Span mm Continuous Span mm Bearer Size Depth x Breadth mm F27 SEASONED HARDWOOD 90x35 2200 2100 2100 2500 2400 2400 90x45 2400 2300 2300 2700 2700 2600 120x35 2900 2900 2900 3300 3300 3200. The detailed structural design for an individual deck will need to be confirmed by an appropriately qualified engineer.

Deck Joists Span Tables Using Hyne Timber Design 7 5 You. The span of a beam is dependent on a few variables. Joist and Beam Span Tables.

Again this is to ensure adequate termite inspection can. AS1684 Decking boards must. I Maximum Bearer Span is based on supporting maximum decking mass of 20kgm2 ii Cantilevers shall not exceed 30 of the actual back span iii The bearer sizes given may support decks over 1000mm above ground.

For bearers supporting decks up to 1000mm above ground refer to Table 5. Table 2 Maximum joist spacing for various decking boards Decking Stress Grade Thickness mm Maximum joist spacing mm Hardwood Standard Grade AS 27961 19 500 Cypress Grade 1 AS 1810 19 400 21 450 Treated Soft wood Standard grade AS 47851 19 400 22 450 Source. - These span tables have been developed in good faith with the assistance of MrPeter Falvey BE MIEAust CPEng RPEQ579 in accordance with the relevant Australian Standards however please check for state and local government variations.

TECHNICAL DIAGRAM Span Tables F7 Rafters 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 1250 1150 1050 1000 950 90 x 30 1650 1550 1550 1400. Availability Of F7 Pine Treated And Untreated. Hardwood 10 to 18 Softwood 10 to 15.

Table 2 gives maximum span of the common decking board ti mbers and thicknesses. For decks 600mm or more above ground level support posts should be of strength graded material. Timber Framing Using As 1684 2 Span Tables.

SPACING BETWEEN PILES ALONG THE BEARER MAXIMUM SPAN OF PILES BEARER SIZE 145M 100 x 75mm 235M 100 x 100mm or two 100 x 50mm 345M 125 x 100mm or two 125 x 50mm 465M 150 x 100mm or two 150 x 50mm Fitting the Joists You can see from Fig6 that the deck cantilevers over the last bearer to produce an overhanging deck. TABLE 2 - TIMBER POSTS1 SUPPORTING ROOF ANDOR FLOOR LOADS. The flexibility of timbers and their strength is taken into account in the Australian timber framing code that is used to create span tables for both Bearers and Joists.

For simple construction such as domestic construction this can be determined from span table supplements in AS16842 and AS16843. Other more complex load condition spans can be determined with our free Hyne Timber Design 75 software. TABLE 8 - DECK BEARERS - SEASONED TIMBER.

- These span tables are only for use in conjunction with TaranakipineTM timber products. Span tables allow users to choose an appropriate size and stress grade to achieve spanning needs. Decking shall comply with AS 4785 - Timber - Softwood - Sawn milled products.

Decking boards shall be seasoned to the requirements of the applicable Australian Standard ie. Deck Calculator Detailed Plans And Costs Metric. Reproduced with permission from TRADA Timber Research and Development Association.

Floor Load Width Size mm x mm Bearer Span mm - 40 kPa Uniform Live Load 45 kN Point Live Load Bearer Span mm - 50 kPa Uniform Live Load 13 kN Point Live Load Single Span Continuous Span Single Span Continuous Span. Cap AS 36601 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. Page 2 - Revised March 2006 Timber Queensland Limited Technical Data Sheet 4 - Residential Timber Decks Table 3 Bearers Floor Load Width mm Length of joists supported 1800 2400 3000 3600 1800 2400 3000 3600 Maximum Bearer Span mm Member Size mm Single Span Continuous Span Unseasoned 100 x 75 1000 NS NS NS 1000 NS NS NS.

Beam Span Chart Table. DOMESTIC DECKS APPLICATION GUIDE Table 2. A maximum roof pitch of 25 degrees is assumed.

Beam span maximums are based on a maximum anticipated. TQ recommends a maximum MC of 15 for residential decking. Construction details should be in accordance with AS16842.

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Footings Can Be Sized Based On Beam And Joist Spans Rather Than On Deck Loads According To The Dca6 Which This Ch Diy Deck Building A Deck Deck Design Plans