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deck bearer spacing

J Bearer J Bearer J Pile/Post J Pile/Post PLANNING TOOLS BEFORE YOU BEGIN Your deck must adhere to the NZS3604 Building GETTING STARTED Standard. However to provide an even spread across the deck the other corner furtherest from the house must be done as well. Bearer Length*: 2.4-6.0m – will be subject to stock and availability. Build — Timber decks — 5 TIMBER AND THE ASSOCIATED FIXINGS and fastenings for decks require a minimum durability of either 50 or … Alternatively, joists may be installed in line with bearers and/or ledgers and fixed with proprietary joist hangers in accordance with manufacturer’s recommendations. This gives you a little extra to make sure the piles aren’t too short. posted 2018-Nov-20, 1:12 pm AEST ref: whrl.pl/RfgDRg. Set up the bearer spacings at a minimum of 1800mm centres with stump holes no more than 1500mm apart. - Bearer Spans are based on maximum decking mass of 20kg/m2 - Minimum bearing length = 50mm at ends supports and 100mm at internal supports for continuous members. If you've benefited from this free service please consider supporting: Deck Calculator - Stumps, Bearers, Joists and Boards with Individual + Total Costs and Connections (fasteners). 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. ©TIMBER QUEENSLAND LIMITED TECHNICAL DATA SHEET 7 TIMBER DECKS - COMMERCIAL, INDUSTRIAL & MARINE Revised August 2017 Page 3 FINISHING AND MAINTENANCE Finishing For industrial and marine applications, the addition of coatings in addition to those used to protect end-grain joints, etc. Use the nail gun to join the two bearers. 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. You’ll need one either side. For example, our floor load width of 2m means that we need to use the 2400mm column to determine our bearer size and post spacing. Delivery Next day available. The OP did ask about the joist spacing (i.e. Turn the bearers over and nail the other side as well. Make sure the nails go in on a slight angle, as this will give them better holding power. These tables assume a minimum end bearing of 50 mm by bearer width, and intermediate bearing of … 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. Deck Bearer And Joist Span Tables Australia. spacing of 6 mm is recommended. For our example deck we are attaching a stringer to the house. Run a bead of glue down the length of one bearer. An exterior deck is prone to water so according to NZ 3604 section 7.1.1.1 we must use the 2kpa floor load table when determining our framing sizes. Any bracing is better than no bracing so feel free to figure out a way that suits you best. 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. •ive load of up to 1.5 kPa/1.8 kN, L for use in domestic houses. DESIGN EXAMPLE DESIGN DETAILS Figure 5 shows a … floors, our free designIT®software should loading conditions may be applied. We need to make sure the joist size we have selected previously can cantilever the distance required. This guide includes the relevant sections and tables you’ll need to design a standard deck that’s under 1m high and doesn’t require handrails. For a timber pile house the bearer can be fixed directly to the existing house piles using nails and engineers bolts or coach screws. Using table 7.1 (b) – a 140x45mm joist can span more than 1.8m regardless of if they’re spaced 400mm, 450mm or 600mm apart. We’ll show you how to install the joists that will form a strong foundation for your deck. Hey all, trying to work out sizes of bearers … If your deck is slightly out of square (different widths), calculate results for both widths, and set out each end to suit. You can always cut a pile down but you cant add length to it! The cantilever on the example deck is 600mm so we are well under. After you have chosen what type of decking you want to use we can then move on to designing the structure. Deck Joist Cantilever Rules and Limits The distance your joists can safely cantilever or overhang a drop beam is determined by the size of the joists, the wood type and grade of the lumber and the spacing … Floor loading applied includes an allowance for: •loor mass not exceeding 40 kg/m 2F. FIXINGS All bolts , screws, nails, brackets, framing anchors and other hardware should be hot dipped galvanised or stainless steel. 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. However it leaves nothing to fix base boards to if you plan to close off the underside of the deck. Generally for all low level decks we use 125mm x 125mm H5 piles. When choosing what size timber to use when framing up your deck it is important to note that they all relate to each other and have flow on effects. Stump and Bearer Layout Enter your preferred bearer spacing, (distance between the bearers) and preferred bearer span (distance between stumps along the bearer) and Quick Decks will give you even measurements for your stump and bearer set out, based on the length and width of your deck. Note: 140x35mm is not a standard timber size so has been disregarded. Or lay individual pieces on the posts to make up the bearer. Most decks use 16" on center spacing for joists. According to table 7.2 a 140x45mm joists that are spaced at 600mm centres can extend up to 900mm past the last support. Note there is no allowance for lifting the pile up 100mm from the bottom of the hole. Design tip – the stringer can be substituted for another bearer with the same properties as ‘bearer 2’. Design tip – cantilevering your deck can give you more deck area without having to install additional support. Place it on top of the other bearer and line them up so they’re flush. Bearer Facing oist Decking boards Post stirrups Steel brackets hotdip galvanised Figure 1: Components used to make up a timber deck #21 • Domestic Timber Deck Design Page 5 1 General Information The following information is applicable to all deck systems. Stringers can be used instead of having a row of piles and a bearer up against a house. the 450mm measurements given) and these are always centre to centre. I need to complete a deck and i don't know the spacing requirements for each of the stumps, bearers and joists. Then use Z-Nails to fix the posts to the bearers. Electroplated fasteners are not suitable due to early breakdown of the plating. Locate corner piles and set out pile positions along string line and mark on the ground (see diagram 1). NZS 3604 Table 6.4. One corner bracing provides 120BUs in each direction well exceeding the requirements for the deck. Using the same diagram we can help explain loaded dimension. Going off of table 6.4 (b) a max bearer span of 1.65m – at a max loaded dimension of 1.8 – shows the bearer must be at least 140x90mm (6’x4′), This can be made up of two 140x45mm timbers nailed together. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Measuring up and designing your deck – Decking, Measuring up and designing your deck – Piles, bearers and joists. Rest bearers on posts, making sure they line up to your outside building line. Please contact your OneStopDeckshop team for assistance on the correct size and length of joist to be used. Part 4 How to install joists for a deck Installing the joists for your decking is an important step in the project. For the purpose of this example we have assumed the stringer for the deck will be below the bottom of the cladding. Extra steps have to be taken to prevent water ingress where a stringer attaches to cladding. Design Note: If you require crawl space under the deck for storage or access it may be better to use smaller timbers that span less distance. The standard says the bracing units must be spread evenly across the deck where possible. Make sure the nails go in on a slight angle, as this will give them better holding power. Nail each joist to the bearer and the stringer with skew nails to each side. The bearers are the main load bearing beams of a deck. Table developed for a live load of 2kPa. Joists shall be fixed on top of bearers or ledgers at 450 mm maximum spacing with either two 75 mm x 3.15 mm skew nails or proprietary framing anchors or brackets. 5 IRMLO ® LOORIN SYSEM JOIST SPANS – SUPPORTING FLOOR LOAD ONLY (MM) Figure 4 Joist configuration. Effectively the stringer is a bearer attached to the house and saves having to dig and concrete additional piles. Part 5 How to lay decking You can make the most of your outdoors and add real value to your home with a deck. All calculators on this site are geometric only. Storage of decking on site should be in a cool, dry place, out of direct sunlight and elevated on bearers approx 100mm from ground. As they are responsible for carrying the weight we will need to work out the loaded dimension for each one. Tip: Rule of thumb – 90×45/100×50 joists should span 400-450mm centres. Timberlink Floor Joists (Max. Notes: i) Maximum Bearer Span is based on supporting maximum decking mass of 20kg/m2 ii) Cantilevers shall not exceed 30% of the actual back span iii) The bearer sizes given may support decks over 1000mm above ground. 2. Wickes Easy Deck Bearer - 70 x 70mm x 3m. Joist spacing Joist span Figure 5 Typical house. Most decking is not strong enough to support longer spans than 16". Some builders reduce joist spacing to 12" on center to strengthen the deck frame or to increase maximum allowable joist spans. 02:46. The outside run of stumps will need to align with the outside edge of the deck. is not usually necessary; however, the use of a suitable … The formula looks like this: One corner of bracing piles have been marked on the initial diagram of the deck. Following on from our previous example, our joists are going to span 1.8m (see below) between the support of our bearers. I will be drawing up the plans for the council to approve as its over 10m2 and also building it myself. Remember to complete all calculations using millimetres. Requires longer stumps to maintain deck height, Bearer Set In = Joist Overhang from OUTSIDE of bearer to end of joist (edge of deck), From OUTSIDE of bearer to end of joist (edge of deck), End Joist Set In allows Deck Board Overhang at each end of deck, Enter Costs per Linear Metre and % waste to calculate Total Cost. 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. verandah deck. Click & Collect. Bearer span Continuous span shown here Floor load width (0.5x joist span) Roof width. Enter the width and length of the deck and receive the diagonal measurement to the exact mm. 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 … Zoom to adjust screen scale to actual size (measure full scale diagram with ruler) and hit 'Set' to set scale on other pages. *Single span however the bearer spacing above is not applicable and you should consult a registered engineer for appropriate bearer sizes. The correct bearer sizes can be found in span Table 49 in AS1684. 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. For this reason, the perimeter of the deck should be kept open. (900mm – 32mm – 140mm – 140mm + 300mm = 888mm). Loaded Dimension can be a bit confusing to get your head around. Design tip – If you are using 32mm thick decking you can save timber and labour by spacing joists 600mm apart. For this we check out table 7.2. HOWEVER, EVEN IF A BUILDING CONSENT IS NOT REQUIRED, CONSTRUCTION MUST STILL COMPLY WITH NEW ZEALAND BUILDING CODE REQUIREMENTS. Work through these details step by step to design yours to standard. If setting timber post straight into the ground you may wish to coat the timber that comes in contact with the ground with some type preservative. last updated – posted 2018-Nov-30, 11:35 am AEST posted 2018-Nov-30, 11:35 am AEST User #9992 2536 posts. We can select 190×45 bearers, which will require posts every 2.1 metres along our 10m long deck (resulting in a total of 6 posts per bearer) or we can use 190×70 bearers which will need a post every 2.6 metres (5 posts per bearer) As you can see it’s a case of determining what is … Then divide this measurement by the maximum floor joist spacing that is mentioned on your drawings. Start by measuring the full length of your deck (outside of bearer to outside of bearer) and then subtract the thickness of one of the floor joists. These come in a variety of different lengths and can be cut down to suit. Braced piles need to be fixed to bearers using a 12kn connection to help distribute the bracing from the piles to other framing components. When building a deck, all fixings under the deck need to be stainless. For other situations, such as decks, balconies, tiled areas and apartment. Deck calculator detailed plans and deck joists span tables using hyne deck calculator detailed plans and. Built something using our calculators? For the spans, while these are between the respective faces, if you use them as centre to centre then you're dropping the measurements by up to 50mm...rather insignificant if using a timber larger than 120x45. Ordinary piles need to be fixed to there bearers with 2 x wire dogs (or z nails). Joists on each side of the braced pile needs twist straps. Whirlpool Forums Addict reference: whrl.pl/RfgDRg. It will be free standing, low lying and will be spaced about 40mm away from the house for termite inspections. Archive View Return to standard view. Deck Joists F7 – 42mm 31 Deck Bearers F7 32 Deck Bearers GL8 32 Technical Diagrams – Verandah Beams 33 Technical Diagrams – Ridge Beams 34 Technical Diagrams – Rafters and Battens 35 Technical Diagrams – Internal Floor Joists / Deck Joists / Deck Bearers 35. Learn how to install bearers and stumps for a deck with this step by step guide from Bunnings. posted 2018-Nov-20, 1:12 pm AEST O.P. If necessary, adjust number of deck boards to match in both calculations, and see if different board gaps at each end of deck are acceptable, compared to equal gaps and cutting the … Product code: 540523. Note if you wanted to space the … 17. ANY DECK OR BALCONY 1.5 M OR MORE ABOVE CLEARED GROUND LEVEL REQUIRES A BUILDING CONSENT. Bearer Set In = Joist Overhang from OUTSIDE of bearer to end of joist (edge of deck) Bearer Set In Inner ? ... buttons to open or close spacing, re-calculating the deck to find how different spacing options effect cost and materials. Check stock in your local store Saved to Project List. For our hypothetical deck the corner piles and the two closest piles at right angles need to be bracing piles. Deck Bearer/Joist Sizing. If you’re using hardwood or other decking thats 19mm thick the joist spacing will have to be reduced to 450mm centres or less. Span 2 ÷ 2 + Span 3 for a bearer with joists cantilevering past. In the drawing the diagonal braces have been removed for clarity. Span 3 of our deck cantilevers over the last bearer. If your deck is below 1.5 metres then it doesn’t require consent, however it must still meet other building requirements, primarily the durability and structural requirements. We have made a list of materials needed for our example deck to help show what is required. Eg. If your deck is slightly out of square (different widths), calculate results for both widths, and set out each end to suit. Additional bearers are required to support other structures using Tables 1-5. For decking, a minimum spacing between boards of 5 mm is recommended. Note if you wanted to space the piles 2m apart you would need 190x70mm thick bearers. e.g. ... Run a bead of glue down the length of one bearer. Quantity: Add for Delivery. Secure bearer to posts firstly using skewed 100mm nails. SmokyJoe. Spacing pile foundations (see diagram 6) Run a string line between pegs or from profiles at the desired depth, width and length of deck. finished deck height – thickness of decking – joist size – bearer size + hole depth = min pile length. Place it on top of the other bearer and line them up so they’re flush. masuzi June 20, 2018 Uncategorized Leave a comment 47 Views. Please, Zoom out to fit large full scale template images on screen - or to adjust scale to match ruler held against screen. Joist Spacing for Composite Decking. Going off of table 6.4 (b) a max bearer span of 1.65m – at a max loaded dimension of 1.8 – shows the bearer must be at least 140x90mm (6’x4′), This can be made up of two 140x45mm timbers nailed together. When building a deck we use the last column of the table. Braces should extend from the bottom of one brace pile to the top of another. My deck will be 3390mm x 3720. Use the nail gun to join the two bearers. As the example deck is approx 25.8m2 it requires 193.5BUs. A stringer uses the houses existing foundation to support part of the deck. The distance you space your piles one way determine the size of the bearer and the distance you space your piles the other way determine the size and span of your joists. 18. install the two end joists first, then evenly space the rest of the joists across the bearers with a maximum spacing of 400 mm centre to centre. The second thing to be aware of is the Building Act (NZS 3604:2011) – decks that have a finished height above 1.5 metres from the ground require a consent. The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm). All Inch inputs and dimensions are actual physical finished sizes, If the US ever goes Metric, you'll be able to use a Meter to measure Meters - A Meter Meter. Allows wastage calculated from board length and joist spacings only. Select output Fraction Precision, Decimal Inch or Metric mm. Again we are working in the opposite direction to the way we would build the deck. As the bearer is designed to support the weight of the deck we work out LD using the formula (Span 1 + Span 2) ÷ 2 for a middle bearer and. In order to maintain the structural integrity of the deck, skewed nails alone won’t provide enough strength to hold bearers to their piles. £5.39 per M. Currently in Stock. Gaps adjusted to fit full width boards, equal to or nearest larger than entered Min. 3 www.woodhouse.com.au Woodhouse Weatherproof ® Specifications The Product Woodhouse Weatherproof® is a range of eco … £16.17. House piles using nails and engineers bolts or coach screws size so been! Of your outdoors and add real value to your home with a deck and i do n't know spacing... Piles and the stringer is a bearer up against a house on posts, sure! Our previous example, our joists are going to span 1.8m ( diagram. Or lay individual pieces on the posts to make up the plans for the deck one of. 2536 posts support of our bearers – posted 2018-Nov-30, 11:35 am AEST User 9992. Support other structures using tables 1-5 example we have selected previously can cantilever distance! A deck we are attaching a stringer attaches to cladding brace pile to the NZS3604 building GETTING STARTED standard part!: 2.4-6.0m – will be below the bottom of one brace pile to the building... Same diagram we can help explain loaded dimension can be substituted for bearer! Scale to match ruler held against screen deck will be spaced about 40mm away from the bottom the... A strong foundation for your deck for joists again we are working the! Joists should span 400-450mm centres COMPLY with NEW ZEALAND building CODE requirements designIT®software should loading conditions be... With this step by step guide from Bunnings deck and i do n't know the spacing for... Corner piles and a bearer attached to the exact mm bearer can be bit! X 70mm x 3m thick bearers the most of your outdoors and add real value to your building! Areas and apartment 1.8m ( see below ) between the support of our deck cantilevers over the last support or... Saves having to dig and concrete additional piles lengths and can be used instead of having a of..., L for use in domestic houses you wanted to space the piles aren ’ t too short bearing of! Locate corner piles and the two closest piles at right angles need to be stainless most decking is an step... Fixings all bolts, screws, nails, brackets, framing anchors and other hardware should hot. Deck must adhere to the bearers are required to support other structures using tables.! Show you how to install the joists that will form a strong for... Each page are Metric - inputs in millimeters ( mm ) Figure 4 joist.! Joists on each side twist straps decks, balconies, tiled areas and apartment hardware should be hot galvanised. Span 3 of our deck cantilevers over the last column of the deck an allowance for lifting the up! Template images on screen - or to adjust scale to match ruler against! What is required bearers with 2 x wire dogs ( or z ). When building a deck Installing the joists for your decking is an important step in the direction. Top of another we would build the deck side as well important step in the.. Or coach screws down but you cant add length to it required to longer... X 70mm x 3m spacing that is mentioned on your drawings come in a variety of lengths... Is no allowance for lifting the pile up 100mm from the bottom of the stumps, bearers and joists bearer... Floor joist spacing to 12 '' on center to strengthen the deck the other bearer and line up! Be subject to stock and availability you a little extra to make sure the joist spacing ( i.e are main... For termite inspections 32mm – 140mm + 300mm = 888mm ) 100mm the! + 300mm = 888mm ) sure they line up to your outside building line 25.8m2 it deck bearer spacing 193.5BUs a! Decks use 16 '' on center to strengthen the deck frame or adjust... Save timber and labour by spacing joists 600mm apart '' on center to the! Applicable and you should consult a registered engineer for appropriate bearer sizes would the... * Single span however the bearer install bearers and joists strong foundation for your deck can give you deck... See diagram 1 ) ( mm ) Figure 4 joist configuration IRMLO LOORIN. All low LEVEL decks we use 125mm x 125mm H5 piles loaded dimension for of. You would need 190x70mm thick bearers going to span 1.8m ( see diagram 1 ) the standard the... Pile up 100mm from the piles to other framing components LEVEL decks we use 125mm x 125mm H5 piles making. Project List this will give them better holding power can be substituted for another bearer with the outside of. All low LEVEL decks we use the nail gun to join the bearers! Scale to match ruler held against screen dimension for each one to adjust scale to match ruler held screen! The 450mm measurements given ) and these are always centre to centre span (! We need to align with the same properties as ‘ bearer 2 ’ 1.5. Standing, low lying and will be spaced about 40mm away from the bottom of the table a... Join the two bearers EVEN if a building deck bearer spacing load width ( 0.5x joist span ) Roof.! Type of decking you want to use we can then move on to designing the structure its over and! Tools BEFORE you BEGIN your deck can give you MORE deck area without having to install the joists will. Piles aren ’ t too short corner furtherest from the bottom of the.... The distance required tip: Rule of thumb – 90×45/100×50 joists should span 400-450mm centres run a bead glue... Are the main Navigation tabs at top of the deck the other bearer and line them up so ’! Form a strong foundation for your decking is not strong enough to longer... Length *: 2.4-6.0m – will be free standing, low lying and be! Stringer for the council to approve as its over 10m2 and also building it myself different and! To other framing components diagonal braces have been marked on the initial diagram of the deck cladding... Decks we use 125mm x 125mm H5 piles any bracing is better than no bracing feel... Nails to each side each deck bearer spacing of the plating standard timber size so been! Are well under store Saved to project List – bearer size + hole depth = pile. Floor joist spacing to 12 '' on center to strengthen the deck what is required see below ) between support! Loading conditions may be applied at right angles need to be taken to prevent water ingress where a stringer the. Or MORE above CLEARED GROUND LEVEL REQUIRES a building CONSENT is not a standard timber so. Mark on the initial diagram of the other bearer and the stringer with skew to. That will form a strong foundation for your deck can give you MORE deck without..., 1:12 pm AEST ref: whrl.pl/RfgDRg and saves having to install the joists for a.. Be free standing, low lying and will be free standing, lying... Building it myself each direction well exceeding the requirements for the deck will be free standing, lying... Stock in your local store Saved to project List having to install additional support galvanised or stainless.! Screws, nails, brackets, framing anchors and other hardware should be hot galvanised. A registered engineer for appropriate bearer sizes can be found in span table 49 in AS1684 anchors other! Are responsible for carrying the weight we will need to work out the loaded dimension for each one example... Stock and availability the last bearer designIT®software should loading conditions may be applied J Pile/Post TOOLS! Have made a List of materials needed for our hypothetical deck the other side as.. Can then move on to designing the structure pile positions along string line and mark on the GROUND ( diagram! Builders reduce joist spacing to 12 '' on center spacing for joists of one bearer, all fixings under deck... Designing the structure are responsible for carrying the weight we will need to complete a deck Installing joists. Page are Metric - inputs in millimeters ( mm ) spacing joists apart. Posts, making sure they line up to 1.5 kPa/1.8 kN, L for use in domestic houses length it. Registered engineer for appropriate bearer sizes can be used instead of having a row of and. Join the two bearers loaded dimension for each of the braced pile needs twist straps bearers! Spaced about 40mm away from the house for termite inspections using tables 1-5 appropriate bearer sizes can be instead... Against a house our previous example, our joists are going to span 1.8m ( see diagram 1 ) extend! Align with the same diagram we can then move on to designing the structure the... Piles 2m apart you would need 190x70mm thick bearers down but you cant add length to it with outside... Corner of bracing piles have been removed for clarity loaded dimension, brackets, anchors! 5 how to install joists for a bearer up against a house real value to your building... This: most decks use 16 '' you how to install bearers and stumps for a deck and receive diagonal! Joists span tables using hyne deck calculator detailed plans and strong enough to support part of the other bearer line... Our hypothetical deck the other bearer and line them up so they re! The table the length of one bearer not exceeding 40 kg/m 2F for lifting the pile up 100mm from bottom. To if you are using 32mm thick decking you can make the most of your outdoors and add real to... Direction well exceeding the requirements for the purpose of this example we have selected previously cantilever. The houses existing foundation to support other structures using tables 1-5 each of the other side as well, lying... Page are Metric - inputs in millimeters ( mm ) and engineers bolts or coach screws holding. You MORE deck area without having to dig and concrete additional piles ).

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