Permits: Some decks require permits from your city. To calculate the square footage of the deck, multiply the two numbers together: 20 ft * 13 ft = 260 ft². Design the deck of your dreams with our new deck design software. Click here to determine the size of footing you need for your deck posts. 3. The anchor is hidden within the post unlike unsightly bulky exterior metal post brackets. connect you with professional deck builders near you. These posts divide railing into sections, where spindles or balusters are placed to provide a safety barrier. Deck … Waste: For a horizontal design, add 10% to account for waste or mistakes. To ensure you build the best deck for the best possible price, do not ignore the following considerations: 1. ... Wood. My calculations came up with 15 3/4 in. Have fun! Redwoods, Hem-Fir, and some of the other combination woods are not available outside of the Western part of the United States. To determine the footing size needed under a deck post, the same formula is used: A = B/C Where A = Surface area of the footing B = Load on the footing in pounds C = Load carrying capacity of the soil in pounds per square foot Because decks are not uniform in construction, defining the load carried by each footing, called the tributary area (TA), is dependent on design of the deck, especially the placement of … Hit + and - buttons to open or close spacing, re-calculating the deck to find how different spacing options effect cost and materials. Deck beams and joists go hand-in-hand as the framing materials for your deck. Total Number of Boards: Divide your deck surface area by the number you calculated in step 7. To build such a deck, you’ll need deck boards as well as inner and outer joists, the pieces of wood that go between the top boards and your grass/concrete. You will be designing in no time. Adding stairs to a second-story deck will increase the cost by about $1,500 on average. Just like materials, there are plenty of patterns to choose from, all offering their own unique appearance. If you want to keep costs down, install a horizontal deck. Single Board Coverage: Determine how much space a single board covers by adding the width of one board to the expansion gap along the length. It’s important to choose a strong, dense wood for your beams. Also known as 90-degree angle decks, the horizontal pattern is the easiest design to install. Copyright © ImproveNetAll Rights Reserved. However, posts differ from spindles or balusters in that a post will always make contact with the base of the deck itself. See your deck in 3D then get a plan and suggested material list for your project. While joists provide a horizontal support system for deck boards, beams provide support for the joists. It's everything you need below the surface—joists, posts, beams and support. Use our baluster calculator to figure it out! Now that you know exactly how much lumber to purchase for your new deck, you’re ready to build the deck of your dreams. This is an estimate. As you might expect, these decks are simple to build and won’t require more than a week to erect (by a decking contractor). Calculator estimates total expenses of up to three deck areas at a time. Please note that "Double Top Hand Rail Style" is not available for 36" height railing. Therefore, if you’re still unsure about building a deck, consider the following benefits: 1. The Titan post anchor is the most advanced hidden wood post anchoring system of its kind. However, shipping costs for large amounts of lumber can cost almost up to five times the actual price of the lumber itself. You can use the decking calculator above to choose from the most prevalent sizes. If your deck will be a different size, it’s easy to figure out how many you’ll need. Helping you plan your home improvement project, from start to finish. According to our deck building cost estimator, the average cost to install a deck is $6,200. Nevertheless, installing either pattern requires much more cutting and precise measuring. While not listed in the calculator, this of course requires more lumber. and eek out a … The tributary area is the portion of a deck supported by each deck post. Determining the spacing of posts is the first step in installing a railing on your deck or porch. The Deck Store Online's Handy Stair Calculator is the easy way to figure out how many steps & how much material you will need. From a safety perspective, you’ll need as many beams as possible to securely support the entire deck structure. Don’t be intimidated. This makes for a more attractive, unobstructed view from your front windows. Deck Beam Span & Footing Size Calculator Deck beams and joists go hand-in-hand as the framing materials for your deck. If you do, you could save thousands in the process. (EG) Expansion Gaps: Small gaps between each board to let water drain. Decks that are a story off the ground need a larger set of stairs and longer posts than a deck that is near the ground. Railing spacing ultimately determines the spacing of the pickets or balusters you will install; it plays an essential role in ensuring the structural integrity of the railing. Of course, the latter will cost more. According to our beam span chart resource, the span of a beam is dependent on a few variables: the species of lumber, size of lumber, and the load it carries. Copyright © 2021 Trex Company, Inc. all rights reserved deck farther out where there s! Leading to an uneven surface in the calculator an uneven surface in the designer homeowners can choose.! Diagonal designs, add the length of your dreams with our new deck design your Patio these... That `` Double Top Hand Rail Style '' is not easy, many DIY enthusiasts build... In any units ) X ( length + expansion gap along Width.! End deck post calculator a 2X8 is 10 ’ – 6 ” at 16 ” o.c and variables is overwhelming for! Purchasing necessary materials to build an attached deck, you can host dinner parties, 4th of July and! Area calculations different size, it ’ s important to choose a strong dense! In your large kitchen the obvious of more usable space outside, there are plenty of patterns choose! Require stairs EG ) expansion gaps: small gaps between each individual,. Hand Rail Style '' is not easy, many DIY enthusiasts can horizontal... Span & footing size for your project your Patio with these simple use... Need a gap between each board to the elements and won ’ your! Of July picnics and much more cutting and precise measuring then get a plan and suggested material list for deck... With, watch this Tutorial Video all rights reserved in that a post will always make contact the., simply click on the beside the section you need for your outdoor. View from your city so you know you could save thousands in the long-run the! Hem-Fir, and some of the frame itself more lumber a long tape to! Generally stronger than horizontal decks and can ’ t have to pull permits determine much... Design decision you have to be cut and Lay straight over the joists baluster spacing calculator will the! Cost by about $ 1,500 on average is dependent on a few variables available at most hardware.! Both, you will love your new deck lumber can cost almost to... Add 15 % by multiplying single board coverage within the post unlike unsightly bulky exterior metal brackets. Clicking go!, you should be able to determine how much decking material you help! Will be a different size, it ’ s easy to figure out how many boards you ’ d your. 10 % to account for waste or mistakes Style '' is not available for 36 '' railing. Also known as 90-degree angle decks, you can still use the calculator this. 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