Think of detached decks like an island in your large kitchen. You chose a board which is 8 ft long and 6 in wide. Deck post size is important. They make for a stronger, straighter, safer, and smarter alternative to wood substructures and may be more economical in the long-run. Redwoods, Hem-Fir, and some of the other combination woods are not available outside of the Western part of the United States. Deck Load Calculator This calculator determines the size of each tributary area of your deck. Space Near Pool: If you have a pool, a deck can improve safety around the water and adds more walking space around your pool. Extension of Your Home: A new deck expands your usable square footage. Enter your preferences below and then, use ImproveNet to connect with an experienced decking contractor near you. If you get stumped just click the help videos link in the designer. Our Decking Cost Calculator can easily estimate the material costs of your deck. The average permit cost is $979, but smaller decks will cost much, much less. The lengths of each side of a deck often vary. While joists provide a horizontal support system for deck boards, beams provide support for the joists. You need to calculate lineal feet to determine how much material you’ll need. Make Sure People Come To Your Patio With These 9 Décor Items. While joists provide a horizontal support system for deck boards, beams provide support for the joists. Terms of use, And combination woods, such as Douglas Fir & Western Larch (Douglas Fir-Larch), Hemlock & Fir (Hem-Fir), and Spruce-Pine-Fir. 4. (EG) Expansion Gaps: Small gaps between each board to let water drain. This calculator uses standard 2 x 6 pressure treated lumber for decking available at most hardware stores. Gardening: Those of you with a green thumb, you can create a container garden with a new deck. From here, you should be able to determine your deck surface area (Length X Width). ... Wood. Click here to determine the size of footing you need for your deck posts. Don’t be intimidated. Veranda composite decking is available at the Home Depot. Because the calculator goes beyond the limits of grade, live load, and dead load in the DCA 6 and IRC tables, you can design decks that fall outside the table limits. Deck … To ensure you build the best deck for the best possible price, do not ignore the following considerations: 1. Tip: Deck boards need a gap between each individual one, along the length and at their ends. Also known as 90-degree angle decks, the horizontal pattern is the easiest design to install. Installing a frame is quite easy since the boards don’t have to be cut and lay straight over the joists. select A Calculator We have a variety of calculators to help you figure out the dimensions and quantities of all the different building materials you will need on your job site. 3. Unlike screws, they allow for a smooth surface. It’s like a standing reservation outdoors. For an attached 12 x 12’ deck, you’ll need at least 3 footings, plus at least 2 more if you’re planning on building stairs with it. On the flipside, Pinewoods are only available in Southern and Eastern regions of the country. Enter your preferences below and then, use ImproveNet to connect with an experienced decking contractor near you. (Be sure to have your joist span calculations ready to enter for an accurate reading and check out our concrete calculator to determine the size of your footings.). 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 … To fancy things up, some homeowners paint the framing boards a different color. Design the deck of your dreams with our new deck design software. Painting: Did you know you could paint your deck? Waste: For a horizontal design, add 10% to account for waste or mistakes. Sizing Deck Footings Assuming a minimum soil bearing capacity of 1,500 psf, 8-inch-diameter concrete piers bearing on square footings measuring 2 feet on a side and 9 to 11 inches thick are adequate for most single-story decks where beams are spaced 14 feet apart or less and joist spans are 14 feet or less (see table below). Of course if you are still unsure or have questions about baluster types, brands, or comparability, feel free to give us a call or email. Many homes are not built at ground level. To accurately estimate your lumber requirements for your new deck, you have to take into account the board width, length and thickness, as well as the deck design. Just decide its size and shape, then calculate and measure each … Curved, multi-level, other unusual shapes will require additional review by an engineer or other professional. Your top deck boards sit across the joists. Of course, the latter will cost more. Determining the spacing of posts is the first step in installing a railing on your deck or porch. The Titan post anchor is the most advanced hidden wood post anchoring system of its kind. Total Number of Boards = DSA / (SBC X 1.1), Get multiple quotes for any home improvement project, See pro's rating, reviews, projects and more. As always, if you need help along the way, ImproveNet can connect you with professional deck builders near you. 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. Both deck designs look like a V and create a stunning deck design. This means there are fewer holes to dig and fewer posts to look at from the ground floor of your home. Your beams will need to bear the load of not only your decking materials, but additional components of the frame itself. Another benefit to steel framing is that the material is non-flammable and many insurance companies offer a discounted rate for steel deck framing. 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. Maximum cantilever of a 2X8 is 24” at 16” o.c. Get home design inspiration, cost guides, DIY ideas & local contractor info, all for free! connect you with professional deck builders near you. or 7 lb. Unfortunately, raised decks add more material and time to build. Simply put, this popular pattern adds a deck frame, just like a picture, around your deck. No. This of course raises your decking cost. If you want a 90-degree or 45-degree deck, select your choice into the calculator. 3. Determine your desired expansion gap and enter into deck calculator above. 7. Then, use a long tape measure to determine the total length and width of your deck (enter into calculator). 5. The anchor is hidden within the post unlike unsightly bulky exterior metal post brackets. Now that you know exactly how much lumber to purchase for your new deck, you’re ready to build the deck of your dreams. Real … Decking Calculator To accurately estimate your lumber requirements for your new deck, you have to take into account the board width, length and thickness, as well as the deck design. The joists should measure as long as the length of your deck. Boards usually run parallel with the house. If you do, you could save thousands in the process. However, shipping costs for large amounts of lumber can cost almost up to five times the actual price of the lumber itself. 5. connect with an experienced decking contractor near you. Steel framing materials, such as Trex® Elevations®, are machine-made, making each beam an exact replica of the beams on either side of it. That means that once you have the footings in place you need to install posts - which will support the beams - that in turn support the joists – that support the decking – and eventually you, your family and friends. Therefore, to build an attached deck, you must account for that extra height by installing a raised deck. (SBC) Single Board Coverage = (Width + Expansion Gap along Length) X (Length + Expansion Gap along Width). 8. (DSA) Deck Surface Area (in square feet) = Deck Length (feet) X Deck Width (feet). 800-230-7547 Expansion gaps exist along the lengths and widths of the boards. ... Home > Joist Span Calculator. While we’ve gone over the major requirements for any deck installation, there are always smaller factors that can affect materials, price, labor and more. ... Home > Beam Span Calculator. Permits: Some decks require permits from your city. Deck Beam Span & Footing Size Calculator Deck beams and joists go hand-in-hand as the framing materials for your deck. You need these gaps to drain water. The Titan post anchor is the most advanced hidden wood post anchoring system of its kind. Try to DIY and save money if you want to add some color to your deck. Adding a deck to your home not only increases the value of your property, but it provides you with an outdoor space to gather with friends and family. Also, see if you have to pull permits. Width of Boards (feet): Necessary to determine lineal feet. To further complicate things, some homeowners install transition boards between rows to change up the design. Deck planning doesn’t have to be difficult. By clicking GO!, you acknowledge that you have read Trex's Privacy Policy. Deck Board to Joist = 741 Enter cost per linear foot and wastage % for Stumps, Bearers, Joists and Boards to Calculate individual and Total Costs. Joist Span Calculator. Preparation: Check with your city so you know exactly where you can and can’t install a deck. The final design decision you have to make before you buy deck materials is the pattern. These posts divide railing into sections, where spindles or balusters are placed to provide a safety barrier. However, posts differ from spindles or balusters in that a post will always make contact with the base of the deck itself. Eat Outside: If you prefer to eat outside versus inside, you will love your new deck. The species of lumber, size of lumber and the load it carries. The tributary area is the portion of a deck supported by each deck post. To calculate the square footage of the deck, multiply the two numbers together: 20 ft * 13 ft = 260 ft². So there will be a 2' cantilever beyond the posts and beam. Therefore, if you’re still unsure about building a deck, consider the following benefits: 1. If your deck will be a different size, it’s easy to figure out how many you’ll need. This calculator includes horizontal and diagonal decking. Default is 50 psf which you can change. Not only can you use more space outside, but it also makes your house bigger and will increase the sale price the day you sell. diameter center footing size and Table B3 calls for a 16 in. Finally, multiple these two numbers together to get your single board coverage. So build your deck the right way, from the ground and posts up. Tip: there are different ways to configure your deck boards. If you want to know what equations the deck cost calculator uses, or want to calculate the cost yourself, read the example below: Let's say you want a deck that is 20 ft long and 13 ft wide. You will be designing in no time. If you need both, you can still use the calculator to estimate how much material you’ll need for the deck itself. Giving you on-center measurements, our baluster spacing tool will help your railing meet building codes and remain symmetrical throughout. The decks mentioned above assume you’re building an attached deck. Determine what you want (explanations below) and adjust your sketch. Yes. Chevron and picture frame designs require more materials and cost. Then, add the length of one board to the expansion gap along the width. Another very common deck is a raised deck with steps. While building a deck is not easy, many DIY enthusiasts can build horizontal, grounded decks on their own. Fasteners: Most homeowners use screws and nails to attach the deck to the joists below. Lineal feet tell you how many boards you’ll need. From there, you’ll be able to plug in your specific project measurements to find out just how much concrete … However, if you’d like your deck farther out where there’s more space, you can install a detached deck. This concrete calculator gives you the built-in formulas you’ll need to help you calculate how many bags of concrete you will need for deck footings, supports, walls, pads and/or patios. For help, simply click on the beside the section you need help with, watch this Tutorial Video. Heights and post spacing mentioned in this calculator are for typical residential use on balconies or decks up to three floors. Next -> Inspiration on Instagram. Due to their strength, fewer beams or posts are needed. Wood substructures split, warp and shift, leading to an uneven surface in the deck boards above. 2. A comparison of the footing sizes I calculated for the example deck resting on 1500 psf soil in the Sizing Deck Footings article and DCA 6 Table B3 shows an almost identical result. Decks bring about numerous perks to any household. See your deck in 3D then get a plan and suggested material list for your project. Most professional deck designers and deck design software programs select the post size based on tributary area calculations. Beyond the obvious of more usable space outside, there are other advantages all deck installations bring. Linear metres and cost are auto updated when the deck is re-calculated, with individual costs for stumps, bearers and joists displayed in each section. The variety of decking materials and variables is overwhelming. Need help figuring our exactly how many balusters you need for your deck project? 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. The value of enjoying your new outdoor living space? The two outside posts are positioned at the outside perimeter of the deck and the 2 interior posts are positioned at the 4' and 8' positions respectively. However, from an aesthetic perspective, you’ll want to have as few beams as possible since they will be visible from your ground floor and can obstruct views. Lineal Feet = Deck Surface Area / Width of Boards. 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. A “cantilever” is the unsupported end of a joist that extends past the last support post at the edge of your deck. Copyright © ImproveNetAll Rights Reserved. Furthermore, besides lumber, decks can be made from numerous materials, such as aluminum, vinyl and various species of wood. However, this price assumes you’re hiring a decking contractor. 6. Due to the design, diagonal decks are generally stronger than horizontal decks and can hold more weight. The Deck Store Online's Handy Stair Calculator is the easy way to figure out how many steps & how much material you will need. Stairs are a costly addition to a deck, so consider that adding them will increase the overall cost. Using the Post Hole Calculator Use the post hole estimator to quickly find out how much concrete you will need to set your fence posts. It’s important to choose a strong, dense wood for your beams. This will allow you to look at a variety of deck railings, deck posts and material options, including wood and composite decking. Beam Span Calculator. 4. From a safety perspective, you’ll need as many beams as possible to securely support the entire deck structure. While not listed in the calculator, this of course requires more lumber. Railings: If you’re building a raised deck, you should install railings or balusters. As you might expect, these decks are simple to build and won’t require more than a week to erect (by a decking contractor). footing. The terms “baluster,” “spindle,” and “post” are often used interchangeably. Deck Design (Pick an Angle) Hit + and - buttons to open or close spacing, re-calculating the deck to find how different spacing options effect cost and materials. My calculations came up with 15 3/4 in. Just like materials, there are plenty of patterns to choose from, all offering their own unique appearance. Just like a house, there are different types of decks all homeowners can choose from. For instance, if you know the dead load of the deck will be less than the prescriptive 10 lb., then you can select 5 lb. Nevertheless, installing either pattern requires much more cutting and precise measuring. Besides fitting in with your home, raised decks allow for extra storage underneath. Get total installation cost for building a deck as well as compare decking prices … Most detached decks are built at ground level, but some homeowners do go the extra mile and install raised, freestanding decks. Calculator estimates total expenses of up to three deck areas at a time. Drop in octagons, make a multilevel deck, add a staircase and or wrap around stairs, get a plan to submit for permits. Again, this requires more materials and thus, will increase your final deck installation cost. If you want to keep costs down, install a horizontal deck. It then determines the total load from each tributary area based on the design load of your deck. You can install a horizontal deck on the ground, raised or detached. As a result, the post spacings for a railing will vary as will the length of the railing section that fits between each post. Helping you plan your home improvement project, from start to finish. Total Number of Boards: Divide your deck surface area by the number you calculated in step 7. For help, simply click on the beside the section you need help with, Or watch this Tutorial Video. Use this calculator to find out the beam span and deck footing size for your project. Please note that "Double Top Hand Rail Style" is not available for 36" height railing. Maximum joist span of a 2X8 is 10’ – 6” at 16” o.c. Sketch the Deck: Lay out your deck with stakes at each corner and string in between. 5. Use our baluster calculator to figure it out! Get started on your composite deck project today with these simple to use material calculators. Others think chevron patterns remind them of parquet floors. Board Size: Determine your desired board size. Expansion Gap: These are small gaps between each board. Your beams will need to bear the load of not only your decking materials, but additional components of the frame itself. This is a simple and fun experience designing a new deck. Copyright © 2021 Trex Company, Inc. All rights reserved. Deck Cost Calculator estimates accurate costs for building a deck. ... Everything holding up your deck: beams, posts, joists and support structures. If you’re building a deck, wood isn’t your only option for beams. Deck cost calculator computes project size, average completion time, and total cost to build a new deck. However, as you might expect, building a diagonal deck requires more labor, since you have to cut all boards. Adding stairs to a second-story deck will increase the cost by about $1,500 on average. The data you enter provides a guideline for square or rectangular deck with no substantial items on the deck itself (such as a hot tub or outdoor kitchen, etc). The span of a beam is dependent on a few variables. The calculator will give you the results in cubic yards and number of pre-mixed … Entertain Guests: Weather permitting, with new decks, you can host dinner parties, 4th of July picnics and much more outside. *10% allowance for waste is included. 3 Cost of materials is an initial amount spent on purchasing necessary materials to build one square foot of deck. 2. Get decking prices for composite decks, Azek, Trex, wood, pressure treated decking. You can use the decking calculator above to choose from the most prevalent sizes. Linear feet and cost are auto updated when the deck is re-calculated, with individual costs for stumps, bearers and joists displayed in each section. 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A safety perspective, you should install railings or balusters, fewer beams or posts are.... And - buttons to open or close spacing, re-calculating the deck to find out the beam and. Hidden within the post unlike unsightly bulky exterior metal post brackets you exactly! To attach the deck boards above spent on purchasing necessary materials to build deck... “ spindle, ” and “ post ” are often used interchangeably ft long 6! ’ re still unsure about building a diagonal deck requires more materials and variables is overwhelming the average cost build! Gardening: Those of you with a new deck project today with these to... Hand-In-Hand as the length and at their ends 1.15 ( 15 % by multiplying single board coverage by.. July picnics and much more cutting and precise measuring outside versus inside, can... Popular pattern adds a deck, you can and can hold more weight ) gaps. Like a V and create a container garden with a green thumb, you must account waste... Deck builders near you possible price, do not ignore the following considerations: 1 a stunning deck.! 2X8 is 24 ” at 16 ” o.c copyright © 2021 Trex Company Inc.! Calculator estimates total expenses of up to three floors, steel beams are not susceptible to the.! A new deck tool will help your railing meet building codes and remain symmetrical throughout spacing in... You calculated in step 7 from numerous materials, such as aluminum, vinyl and various species lumber... Platform decks usually require stairs more economical in the calculator will determine the exact range between first! And Table B3 calls for a 16 in for a smooth surface string in between think chevron patterns remind of! Redwoods, Hem-Fir, and total cost to build a new deck available for ''... Along the lengths and widths of the United States material you need to calculate square. More cutting and precise measuring deck framing price of the frame itself = deck length ( feet ) a. Below ) and adjust your sketch since you have to be cut and Lay straight over the.! Out your deck farther out where there ’ s more space, you should be able to exactly. Purchasing necessary materials to build one square foot of deck, do not ignore the following considerations: 1 be... Are fewer holes to dig and fewer posts to look at from the ground and posts up ll... Best possible price, do not ignore the following benefits: 1 the to!