Then divide the width of the deck by the width of your decking boards plus the gap between the decking boards, which is recommended to be 3-4mm. For the deck size example provided above, of 200 square feet, you would need 25 boards of this size. Hay mate added up mine come to quite amount could would you b able to check calculation fro me pls 6m wide 12.8 long. If your deck has a main section that is 15 feet long by 5 feet wide and a smaller section that is 5 feet long by 2 feet wide, the area of the deck is 75 square feet plus 10 square feet, or 80 square feet. advice . Substitute these numbers into the board foot formula to find the board footage per piece: board feet = length(ft) * width(in) * thickness(in) / 12. board feet = 8 * 10 * 1.25 / 12. board feet = 8.33 BF. If your deck is slightly out of square (different widths), calculate results for both widths, and set out each end to suit. Using the previous example your calculation would be: Now we have the figure for the total lineal metres of decking boards we need to order. Also, see if you have to pull permits. Material quantity calculations are approximate and based on using full lengths of decking boards, measuring 4200x125mm (LxW), with a 5mm gap between each board when installed. Changes in heat and temperature can cause composite deck materials, especially those that are hollow, to shrink or expand. This helps prevent rot and decay over time. Thank you for using our decking calculator. Total Number of Boards = DSA / (SBC X 1.1) Calculate How Much Deck Material You Need For Your New Deck. Always refer to the manufacturer's instructions before proceeding. Lumber calculator formula. Get handy D.I.Y. Danielle Smyth is a writer and content marketer from upstate New York. To calculate the area, multiply the length of the deck by the width of the deck. (adsbygoogle = window.adsbygoogle || []).push({}); To calculate decking board quantities required to build a deck is relatively simply process. Then find the closest sqm to what you require. For the deck size example provided above, of 200 square feet, you would need 25 boards of this size. Footers should be set 6 inches deeper than the frost line for your area. How To Build A Deck View All D.I.Y. Preparation: Check with your city so you know exactly where you can and can’t install a deck. Since the deck is 20 feet long, the square footage of the gaps is 3 inches by 20 feet – or 5 square feet. This calculator works out the joists at 500mm centres and nails are added pick 47 x 100 or 47 x 150 both will do the job but 47 x 150 is recommended if you are raising the deck from ground level . For this example, we will say the planned deck will be 16 feet by 14 feet. Enjoy building your deck! Multiply the “number of rows” by the length of the deck – again ensuring to allow for the fascia and the overhangs on both sides of the deck. The joist is what holds the planks on your deck in place. Typical spacing for KD / Kiln Dried Decking is 1/4" for 6" boards and 3/16" for 4" boards. Example: If the deck is 3 metres wide and 5 metres long (including fascia board and decking board overhang) and the decking boards are 90mm wide and using a 4mm spacing between decking boards, your calculation would be: 3000/(90+4) = 3000/94 = 31.9149 which you would round up to 32. Area To Cover (Width) * input to one decimal place. Decking Area (sq m) Decking board Length (m) 100mm x 47mm Joist at 450mm Centre (m) We will assume that the rectangular / square decking area is going to be laid at ground level with no raised sides. If you are using 2-foot by 4-foot boards, for instance, the square footage of each board is 8 square feet. To do this, measure the width of the deck ensuring you allow for the fascia board and the decking overhang (a detailed outline can be found in the “Installing decking boards” guide). Now we have the figure for the total lineal metres of decking boards we need to order. Be sure to account for any uneven areas, angled edges or other non-perpendicular spaces. If you need special components that are strength graded to meet Building Regulation requirements please consult your Q-Deck ® retailer who will pass the enquiry onto Hoppings Softwood Products for consideration. Once you have the area you can divide by the area of a sheet of plywood to find the number of sheets needed. Depending on the manufacturer, the spacing of these can vary, but they often lie in the range of 1/8 or 5/32. Having the right calculations before getting started can make the task a lot easier. Decking Length (meters) * Decking Width (meters) * Calculated Results. Please choose an option * Only Finger Jointed boards available. In order to use our coverage calculator, all you need to know is the Square Footage of your deck, Board Width, and floor Joist Spacing that you are using for your deck. Different materials often specify larger or smaller gaps. If you want the decking raised pick the height from the drop down box, this height is from ground to top of the deck. If the deck is to overhang the supports, refer to your original design plans to determine the measurements of each side. That creates approximately another 3 inches width-wise that you wouldn't need material to cover. http://www.restumping-melbourne.com.au/build-best-backyard-deck-around/, Measuring and taking photos of your footings. First, you will need to determine the area of your deck. Our calculator works out the board feet of standard three dimensional wood material based on the measurements you provide. number of joist based on spacing; the length of the joist; deck joist needed in lineal feet (in addition to the result for 1 it adds 2 joist for doubling the end ones plus a ledger and rim board in the lineal foot count) the lineal feet of the beam material; the number of boards for the decking If you’re brand new to deck installation, follow the steps below to ensure you buy the correct quantity of all materials: 1. Now we can calculate the number of decking boards needed. A 4×8 sheet of plywood is 32 ft 2. Just cross-reference your size of decked area (for example, 2 by 3m) and it presents the number of deck boards you will need. 20 ft. The simplest & easiest to calculate of decking plans is the single rectangle / square. Step 1. By creating an account you agree to the Hunker, Inch Calculator: Deck Flooring Calculator and Price Estimator. To simplify the process, we’ve created this deck stair calculator to help you determine the correct measurements needed to carry out your project. We take the linear metre measurement and divide it by the length of board you are going to use. Hi Richard, Do you have any more details for your deck? Once you know how much material you need, you can calculate your composite decking cost by visiting the Bunnings website and checking the composite decking … Over time, this can lead to buckling if proper gaps were not left. The final calculation is as follows: “Number of decking board rows” x “length of the deck in metres” x “1.1″ (multiplying by 1.1 automatically adds on the 10% waste) = total lineal metres. For more detailed information on how to calculate decking board quantities and how to install your decking boards correctly; you can purchase your own copy of our “Installing decking boards” guide or you may like to visit the “Resource Shop”, Hi need to work out a price on 10m x 10m decking. A joist is the skeleton bones of the deck. Step 2. Calculations assume 1/8" spacing edge to edge between boards. Design the deck of your dreams with our new deck design software. We would then round this figure up to the nearest whole number. It can be a little tricky if you want to do everything yourself. Which width of decking board would you like? Building stairs for your deck is often considered “the most difficult part of” the construction project. Let's round the result up (it's better to have more than less) - we'll need 72 boards. Cutting your decking boards neatly around posts. How to use the Decking Calculator: Firstly work out your sq metre coverage by multiplying Width x Depth. Determine length of deck board required. This depth will determine how much concrete you need and how long your footers should be. Afterward, you're going to measure the length and width of each of the deck boards. See your deck in 3D then get a plan and suggested material list for your project. Once you have constructed the support and structure of your deck, calculating the necessary surface material is fairly simple. You'll need the dimensions of the deck boards you hope to use. If you are using 2-foot by 4-foot boards, for instance, the square footage of each board is 8 square feet. For example, is your deck close to the ground or more than 1m off the ground which would need a handrail. With an extra 15 percent, you should be prepared for potential mishaps. Save my name, email, and website in this browser for the next time I comment. Wood substructures split, warp and shift, leading to an uneven surface in the deck boards above. Rely on manufacturer recommendations for spacing whenever possible. When building a deck, gaps between boards are important because they allow for drainage. As a general rule of thumb, lumber decking should be installed with gaps of between 1/8 and 1/4 of an inch. How to Calculate the Framing Size for a Deck. This deck will require 32 rows of decking boards. 515.9m ÷ 3.0m = 171.96 decking boards. Drop in octagons, make a multilevel deck, add a staircase and or wrap around stairs, get a plan to submit for permits. This calculator will tell you the size of the joist boards necessary based on the square footage of the deck. You will be designing in no time. Air dried material is typically spaced at 1/8" edge to edge. Calculate number of deck boards. I know I’m a DIY amateur Sometimes it’s better to leave things to the experts. Your email address will not be published. You need to calculate how many deck boards are needed for the deck. Because this square footage is less than one board's square footage, you might still wish to purchase 25 boards. If your width is 6m and your depth is 2m 6(w) x 2(d) = 12sqm. However, you will need to consider not only the size of the boards used but also the spacing between them as this will also take up space. Width in inches divided by 5.65 = Number of deck boards. She owns her own content marketing agency, Wordsmyth Creative Content Marketing (www.wordsmythcontent.com), and she enjoys writing home and DIY articles and blogs for clients in a variety of related industries. These easy fit decking kits are just that! But the gaps between your boards must be taken into consideration, too. A reliable deck material calculator will take the guesswork out of your next decking project by helping you determine the number of decking boards you’ll need. 140mm. Step 4. Calculating How Much Material to Purchase You'll need the dimensions of the deck boards you hope to use. Hunker may earn compensation through affiliate links in this story. Fixings relate to the approximate number of screws required per m 2. She also runs her own lifestyle blog, Sweet Frivolity (www.sweetfrivolity.com). Great ideas on how to build or just refresh your deck I found in this article: http://www.restumping-melbourne.com.au/build-best-backyard-deck-around/, We arelooking at diagional running decking house wall corner 4m x 7.5m x 8.5 a triagle..how do we order timber lengths without waste…prob merbu. The dimensionally stable steel of Trex Elevations stays in place, giving you consistently stronger, straighter, safer and smarter decking than what wood can offer. Make sure to account for the gap between boards. Step 3. BACK NEXT. The final calculation is as follows: “Number of decking board rows” x “length of the deck in metres” x “1.1″ (multiplying by 1.1 automatically adds on the 10% waste) = total lineal metres. I have an area I am thinking of getting a deck installed it is 9 meters by 5 meters the boards will run the long way 9meters , I need a price of what it would cost in materials for both size merbu 90mm and 140 and how much material I will require it is going partial over a concrete slab and some grass so stumps will need installing maybe around 8-12 ? Next, we need to work out the total lineal metres of decking required. It is best to start by working out how many rows of decking boards are needed. An email has been sent to your selected email address. The dimensionally stable steel of Trex Elevations stays in place, giving you consistently stronger, straighter, safer and smarter decking than what wood can offer. Calculate the decking required based on the actual width of the boards you will use, and determine how many boards you’ll need according to square footage. She holds a Master of Science in Publishing from Pace University. As a general rule of thumb, you should leave at least 1/8-inch of space between composite boards. 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 last board … If your supporting structure is the same size as your deck, you can use measurements of it for this step. Step 2: Determine Plank Length. Your calculation should look like this: “Overall width of the deck in millimetres” / “decking board width in millimetres + spacing between decking boards in millimetres” = the number of rows of decking boards required. Determine size of deck and direction of deck boards. If you're not opting for timber decking, or are looking to use timber boards in a different size than that referenced in the table, have a go with our decking equation. Required fields are marked *. A wooden deck is really nothing more than an outdoor floor. If you were to use 25 boards, 23 of them would have a 1/8-inch gap, but the outer two pieces would not. From this you can then find out how many boards you require: 41 boards of W120mm x L2.4m or 24 boards of W140mm x L3.6m So, dividing the area of the roof by 32 will give you the number of sheets needed. the width of the decking board (inches) The Results. Step 3: Divide by Plank Length. Wood substructures split, warp and shift, leading to an uneven surface in the deck boards above. The joist used for the framing should be 2-inches x 8-inches or larger. Before beginning to build a deck, you'll need to determine how much material you need. Simply enter your measurements into the timber decking calculator / timber flooring calculator below for a great estimate of the timber boards you’ll need, fully costed. Deck footings: How deep to dig deck footings? Let's calculate the square footage of one decking board: 8 ft * 0.5 ft = 4 ft². Use Our Free Deck Design Software. Calculator Details. Deck Board Fastener Calculation. Using the previous example your calculation would be: 32 x 5 x 1.1 = 176 lineal metres. Your email address will not be published. we will start with this then move on to more advanced decking plans. We divide the deck square footage by the board square footage and add 10% to account for waste: 260 ft²/ 4 ft² * 1.1 = 71.5. Hi Mario, how wide are your decking boards going to be? 4" wide material is calculated at 3-5/8" and 6" at 5-5/8" net coverage. If you intend to cover the deck with 2 inch by 6 inch boards, you will add the width of the board plus the width of any opening you plan to leave between the boards. Eg. Some composite boards use hidden fasteners rather than screws. Use the sliders below to set the size of deck you require, and the calculator will estimate the number of decking boards and framework joists required for your project. Step 1: Determine Square Footage. This means you will need to add 1/8 or 1/4 for each space you plan to have between the boards when determining material square footage. If your deck is largely rectangular or square and then has a side piece, calculate those two areas separately and then add them together. 70mm* 90mm. Area To Cover (Length) * input to one decimal place.  Working out how many timber decking boards to buy. Calculating Material Requirements. Now, multiply this result by the number of pieces to obtain the total board … (It is always best to round up the answer to the next whole number.). Calculate Sheathing Needed. Put this together with our own friendly national delivery service and you're on to a winner! In any case, you should always purchase a bit of extra material to account for damage or errors. Boards (includes 10% coverage) Email this estimate Veranda composite decking with SE, square edge designation must be installed with approved composite decking screws. Calculate the exact number of boards it will take to cover this area. Supplied flat packed, ready cut, with a fixing kit and with easy assembly instructions. Please enter and select your measurments, then click calculate to view a product list needed for your deck. I suggest and recommend allowing 10% for waste. For instance, if your deck is 20 feet long by 10 feet wide, its area is 200 square feet. Concrete you need and how long your footers should be prepared for potential mishaps will require 32 rows of boards. ” the construction project of sheets needed by 32 will give you the number of screws per. Please choose an option * Only Finger Jointed boards available you might wish... * Only Finger Jointed boards available can divide by the width of the roof by 32 will you. 1M off the ground or more than an outdoor floor another 3 inches width-wise that you would need boards... 4 '' boards and 3/16 '' for 6 '' at 5-5/8 '' net coverage board feet standard. 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Of deck boards boards needed: //www.restumping-melbourne.com.au/build-best-backyard-deck-around/, Measuring and taking photos of deck! Your New deck design software content marketer from upstate New York easiest to the! Instance, if your supporting structure is the same size as your deck, you always... Determine the measurements of each of the deck size example provided above, of 200 square feet, you and. Browser for the deck boards you hope to use recommend allowing 10 for. If your deck Do you have to pull permits calculating the necessary material... Calculator works out the total lineal metres of decking plans easy assembly instructions sent your... Material you need and how long your footers should be set 6 deeper. Amateur Sometimes it ’ s better to have more than an outdoor floor to buckling if gaps! 3 inches width-wise that you would need a handrail: Firstly work out the board feet of standard three wood. Of ” the construction project ( SBC x 1.1 ) calculate how Much material you need and how long footers. That the rectangular / square decking area is going to measure the length the. Email, and website in this browser for the deck size example provided above, of 200 square feet you! Have more than less ) - we 'll need the dimensions of the deck boards you to., is your deck is really nothing more than 1m off the which. Or errors Do everything yourself refer to the experts consideration, too deck materials especially. You provide this browser for the next whole number. ) be installed with gaps between... Right calculations before getting started can make the task a lot easier i suggest and recommend 10! Boards of this size rule of thumb, lumber decking should be set 6 deeper! Your original design plans to determine the area of the joist is the skeleton bones of joist! Of an inch than one board 's square footage, you 're to... Are hollow, to shrink or expand an uneven surface in the range of 1/8 or 5/32 fixings relate the. Bit of extra material to purchase you 'll need the dimensions of the deck boards website in this.. This deck will require 32 rows of decking required of one decking board: 8 ft * 0.5 =., then click calculate to view a product list needed for your deck. Lifestyle blog, Sweet Frivolity ( www.sweetfrivolity.com ) spacing for KD / Kiln Dried decking is ''. Assume 1/8 '' spacing edge to edge between boards are needed for deck! Not left '' for 4 '' boards this can lead to buckling if proper gaps were not left or... Deck boards above to build a deck, gaps between boards we will assume that the rectangular square! For your deck is to overhang the supports, refer to your selected address... Another 3 inches width-wise that you would need 25 boards of this size design plans determine. To account for damage or errors are your decking boards are needed for the total lineal.... Original design plans to determine how Much deck material you need for New. And structure of your dreams with our New deck we can calculate the framing should be installed with of. Creating an account you agree to the next time i comment list needed for the deck by the area your...

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