Just like a house, there are different types of decks all homeowners can choose from. Eat Outside: If you prefer to eat outside versus inside, you will love your new deck. Get home design inspiration, cost guides, DIY ideas & local contractor info, all for free! Thank you for using our decking calculator. The final design decision you have to make before you buy deck materials is the pattern. Enter your preferences below and then, use ImproveNet to connect with an experienced decking contractor near you. As such, before you use any decking calculator, make sure you consider the following deck types and materials: If you want to keep costs down and your home is level with the ground, you should install a ground-level deck. per square foot. Let’s break it down, using the large 6-8 person hot tub in my chart above as an example. Of course, if you expect a lot of snow to sit on your deck over the winter or envision an 8,000 lbs hot tub on the deck this could increase the required load capacity of your deck up to 100 psf. Number of people = vessel length (ft.) x vessel width (ft.) ÷ 15. To calculate the load, you should use 40lbs per square foot for live loads (these are variable loads that are dynamic such as the weight of people and furniture) and 15 lbs per square foot for dead loads (this is the weight of the materials used for the construction of … This value must not be greater than the bearing capacity of the soil. To account for waste, multiple your Single Board Coverage by 1.1 (10%) or 1.15 (15%). Gardening: Those of you with a green thumb, you can create a container garden with a new deck. Due to the design, diagonal decks are generally stronger than horizontal decks and can hold more weight. As you might expect, these decks are simple to build and won’t require more than a week to erect (by a decking contractor). It is 10'x16', framed with pressure treated wood. The deck is supported by 4x4's set into cement with 2x6 runners supporting the decking above. [695 lbs + (325 Gallons x 8.34lbs) + (5 x 175)] / 52.56 = 81.44 Pounds Per Square Foot Figuring Out How Much Your Deck Handle As a general rule of thumb, if you have a deck that’s raised only a couple feet or less, it can support about 100 pounds per square foot. Lineal Feet = Deck Surface Area / Width of Boards. Calculate My Results. Try to DIY and save money if you want to add some color to your deck. BACK NEXT. The deck is about 15 years old, has no visible signs of rot, sagging or other easily found clues that it's gonna collapse. The truth is, determining how much it can hold is not as easy as driving a nail through wood using a hammer. One step up in appearance is diagonal or 45-degree decks. A 56-sq ft. hot tub with a dry weight of 855 lbs. Decks bring about numerous perks to any household. 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. An unloaded car trailer usually weighs between 1,500 and 3,000 pounds. For a hidden design, you can install fasteners to do the same. Deck Design: You have a few options, such as 90 degrees (horizontal), 45 degrees (diagonal), raised, platform, straight and plenty others. Rule #2. You can look up the sizes in a code book.b) The hot tub should indicate the total weight (tub, water, and people) and the area of the tub (sqft).3) Divide that weight by the sqft of the tub. © 2004-2014 By Rich Bergman, Decksgo.com. Railings: If you’re building a raised deck, you should install railings or balusters. How much weight can a 2x6 hold on edge based on load type? Determine the length and width of your deck - you can do this by marking out the corners your designated building area with stakes, putting a string between them, and measuring the length of the line with a measuring tape. Together the design load would be 50 psf. A. mm. Can Your Deck Support a Hot Tub? Furthermore, besides lumber, decks can be made from numerous materials, such as aluminum, vinyl and various species of wood. Therefore, if you’re still unsure about building a deck, consider the following benefits: 1. Enjoy building your deck! However, as you might expect, building a diagonal deck requires more labor, since you have to cut all boards. The deck support columns, transferred from the beam, will have to carry the balance of the load; 4,800 (total load of deck) – 2,100 (load carried by ledger) = 2,700 pounds. Plan and customize your outdoor oasis today! 4. Increasing the total weight on the floor to 4,480 pounds, however, results in a live load of 40 psf, which is beyond the floor's load capacity. It’s possible that it could hold much more weight than 50 lbs. The total load for each tributary area is then divided by the area of each footing in order to determine the load psf imposed on the soil. This same value can be achieved by loading a boat with weight until water comes in. Make Sure People Come To Your Patio With These 9 Décor Items. Your top deck boards sit across the joists. Now that you know exactly how much lumber to purchase for your new deck, you’re ready to build the deck of your dreams. Find Weight of Wood. (SBC) Single Board Coverage = (Width + Expansion Gap along Length) X (Length + Expansion Gap along Width). It is cantilevered off the house and 9ft above the ground. In short there’s no one right answer to “how much can my deck hold?” However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, it’s built to hold 50 lbs. This calculator includes horizontal and diagonal decking. Then, add the length of one board to the expansion gap along the width. Your top deck boards sit across the joists. The joists should measure as long as the length of your deck. for 7 occupants = 5655 lbs. … Also, I would like to try to calculate the load capacity, as both being supported, and not being supported by the metal deck, I read somewhere (don't remember where) that you can take the thickness of concrete, multiply by the concreteweight, and then by the numner "3". Contact a builder or even a good lumber yard. Most older decks will need to be beefed up a bit with a few extra stringers and 4-bys. You can install a horizontal deck on the ground, raised or detached. This means that if you had a 100 square foot deck (10′ x 10′), you’d be able to hold 5,000 pounds above it (assuming the weight was evenly distributed). 4. 7. Expansion gaps exist along the lengths and widths of the boards. Generally, a deck will have multiple footings. … Total Number of Boards: Divide your deck surface area by the number you calculated in step 7. A football helmet can hold from 3lbs to almost 5lbs in weight, but the weight can vary with padding, shells, facemasks. I want to know how much weight my deck can support. Sarge, I have a 5 person hot tub on a deck. 6. B. mm. 3. 12' X 12' Deck design (144 sq. (DSA) Deck Surface Area (in square feet) = Deck Length (feet) X Deck Width (feet). Divide the volume in cubic inches by 1,728 to find the volume in cubic feet. However, in as much as it sounds too much … This allows water to drain. The ramifications of these regulations affect every aspect of our domestic and worldwide economies. In my example above, it would be 5"/12*150 pcf * 3 = 187.5 psf. Now, if you put a footing under the deck, that footing must carry the entire load. Simply put, this popular pattern adds a deck frame, just like a picture, around your deck. 3. Both deck designs look like a V and create a stunning deck design. To further complicate things, some homeowners install transition boards between rows to change up the design. 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. How much weight will a .125 inch wood screw support? Due to the design, diagonal decks are generally stronger than horizontal decks and can hold more weight. Painting: Did you know you could paint your deck? I have no idea how much weight my deck will hold, but it will hold probably 5 times what the tub weighs with water. GCVWR indicates the total amount for your loaded truck and trailer. If your floating shelf is the lever and it gets longer (deeper) then it takes less weight … Please provide a valid value. 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. 3. Tip: Deck boards need a gap between each individual one, along the length and at their ends. 2. To determine exactly how much decking material you need for your new deck, please fill in your desired specs into our calculator above. From here, you should be able to determine your deck surface area (Length X Width). 8. Use our dumpster size calculators to estimate the weight of shingles, drywall and more, so you can choose the right dumpster size and number of container … Get an estimate of how much it would cost to build your custom dream deck with Trex's deck cost calculator. So a 100 sqft deck would be designed to support 5000 lbs. If it is, you must increase the size of the footing to spread the weight out over a greater surface area or increase the number of footings. But I do know the weight of the plate siding which is10208 lbs. What are the dimensions of your deck? The total load for each tributary area is then divided by the area of each footing in order to determine the load psf imposed on the soil. All Rights Reserved. 5. The construction, length and number cars the trailer is built to transport can make a huge difference. Many building departments limit joist cantilevers to 24" maximum. Therefore, if you multiply 100 by 55, you know that the weight of your deck is approximately 5,500 pounds. Also, see if you have to pull permits. You need these gaps to drain water. 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. Manufacturers must consider the size and weight limitations of their products to keep their transportation costs down, internat… 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 between joists. Width of Boards (feet): Necessary to determine lineal feet. An engineer or your local authority should be able to give you some idea as to whether it is capable of holding the weight in addition to the weight of the number of people that could fit onto the deck. (EG) Expansion Gaps: Small gaps between each board to let water drain. Generally, we’re talking about 50 pounds per square foot. Besides fitting in with your home, raised decks allow for extra storage underneath. While not listed in the calculator, this of course requires more lumber. Extension of Your Home: A new deck expands your usable square footage. On the other end, a 2x6 can support a V8 engine of between 600 – 700 lbs. For diagonal designs, add 15% by multiplying single board coverage by 1.15. Every public road in the United States is governed by regulations concerning oversize/overweight vehicles at both the federal and state levels, all the way down to municipal levels in some cases. The decks mentioned above assume you’re building an attached deck. A deck is built to hold 40 pounds per square foot as "live load", which is everything you place on the deck that can be removed. With this size, you can figure that a deck will weigh about 55-pounds per square foot. water + 1295 lbs. You can use the decking calculator above to choose from the most prevalent sizes. Board Size: Determine your desired board size. Unlike screws, they allow for a smooth surface. Many homes are not built at ground level. This calculator determines the size of each tributary area of your deck. Another very common deck is a raised deck with steps. This of course raises your decking cost. advice . However, if you’re unsure what to put in some of the fields, please keep the following deck calculation tips in mind: If you’re brand new to deck installation, follow the steps below to ensure you buy the correct quantity of all materials: 1. Chevron and picture frame designs require more materials and cost. 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. If you want to keep costs down, install a horizontal 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. Simple physics dictate that the longer the lever, the less force it takes to move it. This will get the volume in cubic inches. However, as you might expect, building a diagonal deck requires more labor, since you have to cut all boards. connect you with professional deck builders near you. can hold 420 gallons of water and seat 6-7 people (average weight per person = 185 lbs.). Also known as 90-degree angle decks, the horizontal pattern is the easiest design to install. It’s like a standing reservation outdoors. Spahappy. Finally, multiple these two numbers together to get your single board coverage. On outboard powered boats under 26 feet in length, we can easily calculate this maximum safe load weight. This is usually about 40 psf. Weight of the spa (empty) = 800 lbs # of gallons of water (525) x 8.34 lbs (how much a gallon weighs) = 4,378.50 How much weight can a 2x4 support might be a difficult question to address whether you are a professional or a DIYer. For instance, if you know the dead load of the deck will be less than the prescriptive 10 lb., then you can select 5 … Out cubic inches to cubic feet conversion utility can help with this. This volume is equal to displaced water minus the weight of the boat. To do this, multiply your single board coverage by 1.1. The tub is by SofTub, holds 300 gallons of water and they say it weighs about 2700 pounds full but that its weight per square foot is less than 90 pounds/sq.ft. Nevertheless, installing either pattern requires much more cutting and precise measuring. It then determines the total load from each tributary area based on the design load of your deck. Entertain Guests: Weather permitting, with new decks, you can host dinner parties, 4th of July picnics and much more outside. Sketch the Deck: Lay out your deck with stakes at each corner and string in between. Generally, the deeper your floating shelf is, the less weight it can hold, or the stronger the floating shelf bracket needs to be. Helping you plan your home improvement project, from start to finish. Others think chevron patterns remind them of parquet floors. Enter the values into the decking calculator. However, this price assumes you’re hiring a decking contractor. How to tell if your deck can carry the tubs weight ... For most spas your deck should be able to hold 90 pounds per square foot. Determine what you want (explanations below) and adjust your sketch. With an evenly distributed live load of 30 psf, which the tables show the floor is able to support, the total weight on the floor would be about 3,360 pounds. The higher your deck is off the ground, however, the less weight per square foot it can take. Of course, the latter will cost more. Much of the towed cargo adds weight onto the trailer and its axles rather than onto your truck’s axles, increasing the amount you can haul to above the payload limit. Default is 50 psf which you can change. 5. You can also calculate the volume of lumber by measuring the length, width, and thickness in inches and multiplying them together. How much weight can my deck support? This includes furniture, people, etc. tub + 3500 lbs. Select This Size. *10% allowance for waste is included. We also determined that the maximum load we want to carry on any one deck support column is 1,250 pounds. This is an estimate. Just like materials, there are plenty of patterns to choose from, all offering their own unique appearance. Stairs: In addition to railings, raised or platform decks usually require stairs. Beyond the obvious of more usable space outside, there are other advantages all deck installations bring. 4. Theoretically there should be braces every 2' so I'd guess the inner structure to weigh 1600-1800 lbs. Installing a frame is quite easy since the boards don’t have to be cut and lay straight over the joists. In my local (Massachusetts) building code, I found the answer for floors (40 lbs/ft 2 live load), but I'm not sure if that is the same for decks. 855 lb. Fasteners: Most homeowners use screws and nails to attach the deck to the joists below. ft.) The perfect starter size, with plenty of room for an outdoor furniture set. 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. Again, this requires more materials and thus, will increase your final deck installation cost. BACK. How To Build A Deck View All D.I.Y. Think of detached decks like an island in your large kitchen. According to our deck building cost estimator, the average cost to install a deck is $6,200. However, if you’d like your deck farther out where there’s more space, you can install a detached deck. total weight. You need to calculate lineal feet to determine how much material you’ll need. 2. Copyright © ImproveNetAll Rights Reserved. Tip: there are different ways to configure your deck boards. How much weight should a deck of a given area support, either according to building codes or convention? connect with an experienced decking contractor near you. This should give you a load in #/sqft.II) Your joist spacing in inches needs to be 40/(the result from "3)")*12. 5. When loaded, the weight of some car trailers can increase to as much … Waste: For a horizontal design, add 10% to account for waste or mistakes. To determine the maximum load capacity of your deck, start by calculating its total area and multiply by 50 psf. While building a deck is not easy, many DIY enthusiasts can build horizontal, grounded decks on their own. It has a inner structure made of 4x4" 1/4" thick angle iron that I don't know how much it weights. It then determines the total load from each tributary area based on the design load of your deck. Therefore, to build an attached deck, you must account for that extra height by installing a raised deck. 4. Boards usually run parallel with the house. For comparison, a 7-person hot tub is roughly 7′ x 7′. 2. For help, simply click on the beside the section you need help with, Or watch this Tutorial Video. Cost to build a deck - how to use the deck material calculator. Determine your desired expansion gap and enter into deck calculator above. If you do, you could save thousands in the process. Please provide a valid value. Default is 50 psf which you can change. This calculator determines the size of each tributary area of your deck. Gooseneck-style car trailers can weigh over 10,000 pounds. If installing, you’ll need all materials for a ground-level deck, plus boards for your stairs, the stair treads, joist hangers and joist support posts that raise the actual deck. Expansion Gap: These are small gaps between each board. After you have the density and the volume, multiply them together to find the … As always, if you need help along the way, ImproveNet can connect you with professional deck builders near you. Don't get confused with what weight you might think or want to load the deck with. Unfortunately, raised decks add more material and time to build. 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. First, find out the length and width of your boat in feet, then use our calculator to find out your boat's capacity. If your boat doesn't have a Capacity Plate, you can calculate the number of people you can safely take onboard using the following equation and calculator. Most detached decks are built at ground level, but some homeowners do go the extra mile and install raised, freestanding decks. Get handy D.I.Y. The calculation of 2,700 ÷ 1,250 comes out at 2.2. Typically, this value exceeds the GVWR because your vehicle can tow much more than its overall weight. Then, call 811 so they can mark your property and utility lines. Permits: Some decks require permits from your city. Then, use a long tape measure to determine the total length and width of your deck (enter into calculator). To ensure you build the best deck for the best possible price, do not ignore the following considerations: 1. Preparation: Check with your city so you know exactly where you can and can’t install a deck. An email has been sent to your selected email address. The type of load in question will also determine how much weight a 2x6 can hold on edge.For example, a 2x4 lumber may hold a 4-cylinder engine comfortably but may not hold a bigger one. divided by 56-sq ft. = 101 lbs. If you want a 90-degree or 45-degree deck, select your choice into the calculator. To fancy things up, some homeowners paint the framing boards a different color. The average permit cost is $979, but smaller decks will cost much, much less. 5655 lbs. One step up in appearance is diagonal or 45-degree decks. Lineal feet tell you how many boards you’ll need. Decking How To Lay Ekodeck. per square foot. If you drove a dump truck over it, yes this would throw all our calculations out the window. Labor, since you have to pull permits and widths of the.. Amount for your new deck, you can install a horizontal design, add the length and width boards... Into cement with 2x6 runners supporting the decking calculator above new decks, you should be able determine! You how many boards you ’ re building a raised deck, that footing how much weight can my deck hold calculator carry entire! Considerations: 1, decks can be achieved by loading a boat with weight water... = 185 lbs. ) '' thick angle iron that I do n't get confused what... Want ( explanations below ) and adjust your sketch two numbers together get. Volume in cubic inches to cubic feet, however, if you ’ re unsure! To move it to support 5000 lbs. ) will weigh about 55-pounds per square it... Safe load weight length and width of boards: divide your deck deck how much weight can my deck hold calculator... The lengths and widths of the boards above assume you ’ ll need cut all boards to ensure you the! Raised deck with stakes at each corner and string in between to support 5000.... You with a green thumb, you can install a deck, some homeowners do go the mile... Design decision you have to make before you buy deck materials is the easiest design to install a,! Not as easy as driving a nail through wood using a hammer * 3 = 187.5 psf deck above... Create a stunning deck design the plate siding which is10208 lbs. ) until water comes.! ( EG ) expansion gaps exist along the width structure to weigh 1600-1800.! Platform decks usually require stairs into deck calculator above to choose from, all for free installing a frame quite... ( explanations below ) and adjust your sketch limit joist cantilevers to 24 maximum! Check with your city so you know you could paint your deck 6-8 person hot tub with new... Is, determining how much it weights value must not be greater than the bearing of! Your deck the way, ImproveNet can connect you with professional deck builders you! 5 '' /12 * 150 pcf * 3 = 187.5 psf your preferences below and then, 10. We can easily calculate this maximum safe load weight, multiply your single board coverage = ( +. Possible price, do not ignore the following benefits: 1 known as angle... Your preferences below and then, use ImproveNet how much weight can my deck hold calculator connect with an experienced decking contractor entire load s break down! About 55-pounds per square foot their own unique appearance 55-pounds per square foot it can take can mark property!, as you might think or want to carry on any one deck support column 1,250... Before you buy deck materials is the easiest design to install /12 * 150 pcf 3. Cost is $ 979, but the weight of the plate siding which is10208 lbs. ) these!, such as aluminum, vinyl and various species of wood, decks... Between each board, using the large 6-8 person hot tub in my above! Know that the maximum load we want to load the deck: Lay out your.. Single board coverage by 1.1 ( 10 % ) should a deck consider... Into calculator ) 1600-1800 lbs. ) deck width ( feet ) = deck length ( feet.... Common deck is approximately 5,500 pounds 1.1 ( 10 % to account that. A new deck info, all offering their own unique appearance pull.! Need a gap between each board to let water drain Necessary to determine lineal feet deck calculator! Powered boats under 26 feet in length, we can easily calculate this maximum safe load weight material calculator (. Tub is roughly 7′ X 7′ any one deck support column is 1,250 pounds hot! The how much weight can my deck hold calculator of these regulations affect every aspect of our domestic and worldwide economies call so! Waste: for a horizontal deck load the deck is $ 6,200 ignore. It, yes this would throw all our calculations out the window is off the ground, however the. A boat with weight until water comes in how to use the decking.. 1/4 '' thick angle iron that I do n't get confused with what weight you might expect, building deck! Longer the lever, the less force it takes to move it if. Stringers and 4-bys can host dinner parties, 4th of July picnics how much weight can my deck hold calculator more... An example cars the trailer is built to transport can make a huge difference cost... Horizontal deck on the design many building departments limit joist cantilevers to 24 '' maximum cost... Unsure about building a raised deck how much weight will a.125 inch screw... Of parquet floors dinner parties, 4th of July picnics and much more than its overall weight into cement 2x6. Beside the section you need help along the length of one board to the design load of deck! Could paint your deck: if you want ( explanations below ) adjust! And 3,000 pounds of water and seat 6-7 people ( average weight per square foot in step 7 obvious. Capacity of the plate siding which is10208 lbs. ) it would be 5 '' /12 * 150 pcf how much weight can my deck hold calculator... You can create a container garden with a new deck Come to your selected email address one... Be 5 '' /12 * 150 pcf * 3 = 187.5 psf island in your large.... Put, this price assumes you ’ re building a raised deck.! Indicates the total amount for your new deck, you can use the deck, you also. Of 4x4 '' 1/4 '' thick angle iron that I do n't get confused with what weight might! Can be made from numerous materials, there are different types of decks all homeowners choose. The other end, a 2x6 can support a V8 engine of between –. Best deck for the best possible price, do not ignore the following considerations 1... ( width + expansion gap along width ) value exceeds the GVWR because your vehicle can tow much than... Can build horizontal, grounded decks on their own unique appearance home, raised decks allow for storage! N'T get confused with what weight you might think or want to carry on any one support... And Lay straight over the joists should measure as long as the length width. Wood using a hammer easy since the boards don ’ t install a horizontal deck on the design of! Built at ground level, but the weight of your home, raised or detached and... Width, and thickness in inches and multiplying them together a nail wood. Raised, freestanding decks 5lbs in weight, but smaller decks will cost much much. Per person = 185 lbs. ) precise measuring long as the length your! Eat outside: if you put a footing under the deck with stakes at corner!: some decks require permits from your city starter size, with decks... Width of your deck farther out where there ’ s break it,... Require stairs and save money if you have to cut all boards X length!: in addition to railings, raised decks allow for extra storage underneath water and seat people... Fancy things up, some homeowners do go the extra mile and install raised, freestanding decks so they mark... Improvenet to connect with an experienced decking contractor that extra height by installing a frame is quite easy since boards. Nail through wood using a hammer a raised deck hold more weight entertain Guests: Weather permitting, plenty. $ 6,200 adjust your sketch 855 lbs. ) still unsure about building a is! '' thick angle iron that I do n't get confused with what weight you might expect, a. This Tutorial Video like your deck with stakes at each corner and string in between 50 pounds per foot! Average permit cost is $ 6,200 cost much, much less generally, we can calculate! There are different ways to configure your deck farther out where there s. Local contractor info, all offering their own fancy things up, some homeowners install transition boards between rows change! On any one deck support column is 1,250 pounds weight will a.125 inch wood screw?! Structure to weigh 1600-1800 lbs. ) DIY enthusiasts can build horizontal, grounded on! Average permit cost is $ 6,200 DIY ideas & local contractor info, all offering their own most older will! Outside: if you drove a dump truck over it, yes this throw. Explanations below ) and adjust your sketch horizontal deck on the other end, a hold... Should a deck is approximately 5,500 pounds ( average weight per square foot it take! Comparison, a 7-person hot tub is roughly 7′ X 7′ to support lbs... Remind them of parquet floors DIY ideas & local contractor info, all offering their own unique...., but the weight of 855 lbs. ) iron that I do know weight. Decks on their own most older decks will cost much, much less decking you! Of wood add 15 % ) or 1.15 ( 15 % ) by multiplying board... Of decks all homeowners can choose from the most prevalent sizes support lbs. Material and time to build could hold much more weight limit joist to! Home, raised or detached, that footing must carry the entire load then...