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). the width of the decking board (inches) The Results. we will start with this then move on to more advanced decking plans. 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. 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. Step 2: Determine Plank Length. 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. Once you have the area you can divide by the area of a sheet of plywood to find the number of sheets needed. Design the deck of your dreams with our new deck design software. Calculate number of deck boards. Having the right calculations before getting started can make the task a lot easier. If you were to use 25 boards, 23 of them would have a 1/8-inch gap, but the outer two pieces would not. She owns her own content marketing agency, Wordsmyth Creative Content Marketing (, and she enjoys writing home and DIY articles and blogs for clients in a variety of related industries. If you are using 2-foot by 4-foot boards, for instance, the square footage of each board is 8 square feet. Now, multiply this result by the number of pieces to obtain the total board … I know I’m a DIY amateur Sometimes it’s better to leave things to the experts. She also runs her own lifestyle blog, Sweet Frivolity ( Calculating Material Requirements. We would then round this figure up to the nearest whole number. Fixings relate to the approximate number of screws required per m 2. Using the previous example your calculation would be: 32 x 5 x 1.1 = 176 lineal metres. But the gaps between your boards must be taken into consideration, too. 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 … 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. A 4×8 sheet of plywood is 32 ft 2. Step 3. 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. How To Build A Deck View All D.I.Y. Afterward, you're going to measure the length and width of each of the deck boards. How to Calculate the Framing Size for a Deck. The joist is what holds the planks on your deck in place. Just cross-reference your size of decked area (for example, 2 by 3m) and it presents the number of deck boards you will need. For this example, we will say the planned deck will be 16 feet by 14 feet. Required fields are marked *. Building stairs for your deck is often considered “the most difficult part of” the construction project. 140mm. 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. Now we have the figure for the total lineal metres of decking boards we need to order. Step 3: Divide by Plank Length. Area To Cover (Width) * input to one decimal place. That creates approximately another 3 inches width-wise that you wouldn't need material to cover. Make sure to account for the gap between boards. Save my name, email, and website in this browser for the next time I comment. We will assume that the rectangular / square decking area is going to be laid at ground level with no raised sides. It can be a little tricky if you want to do everything yourself. If you are using 2-foot by 4-foot boards, for instance, the square footage of each board is 8 square feet. As a general rule of thumb, you should leave at least 1/8-inch of space between composite boards. So, dividing the area of the roof by 32 will give you the number of sheets needed. Before beginning to build a deck, you'll need to determine how much material you need. By creating an account you agree to the Hunker, Inch Calculator: Deck Flooring Calculator and Price Estimator. (It is always best to round up the answer to the next whole number.). If the deck is to overhang the supports, refer to your original design plans to determine the measurements of each side., Measuring and taking photos of your footings. 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. As a general rule of thumb, lumber decking should be installed with gaps of between 1/8 and 1/4 of an inch. Let's calculate the square footage of one decking board: 8 ft * 0.5 ft = 4 ft². advice . 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 I suggest and recommend allowing 10% for waste. In any case, you should always purchase a bit of extra material to account for damage or errors. This helps prevent rot and decay over time. Determine size of deck and direction of deck boards. 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.  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. For example, is your deck close to the ground or more than 1m off the ground which would need a handrail. Calculate Sheathing Needed. If your deck is slightly out of square (different widths), calculate results for both widths, and set out each end to suit. (adsbygoogle = window.adsbygoogle || []).push({}); To calculate decking board quantities required to build a deck is relatively simply process.