Where ground level is not uniform (e.g. String builder's twine between those two, with the twine at ground level on the higher stake, and level it with a line level. I am on Montserrat in the Caribbean, so I need to consider hurricane season, Nicely illustrated project. I will be getting a 12’by20′ same slope as your. I have very rocky soil on my sloped property and instead of digging for concrete footings, would digging a 1-2 foot hole filled with tamped aggregate and then placing pre-cast concrete piers that accept 4×4 posts on top of the aggregate work for this project also (assuming it meets code and all that)? The shed measures 10 x 18′, and we started planning the layout by marking the corners of the shed with stakes. The string guides were useful for determining the slope of our site, finding the high-point and marking the locations for our post holes. I also put in rebar as well. You are correct that the posts are different lengths to get below the frost line. Go with 2x6s or even 2x8s. I’d think that once you finished your framing, you’d have no movement so as long as you staid true, you were good, right? If you look closely, you’ll see the front, far-left corner was our high point, and the back, right corner was the low point. Determine the angle of the slope. For this project, we … Thanks for visiting! For additional support and to keep our foundation from racking, we added 2 x 8″ joists between the support beams. What to do? Call the North America One Call Referral Service (1-888-258-0808). I’m planning to build a foundation and platform for a 10’x8′ resin-steel core shed. I’m hoping one day to store a ride lawn mower in it. Plan the perfect garden with our interactive tool →. We want to keep the shed as low to the ground as possible while still keeping everything level. Also the posts are harder to replace if you need to do that in the future – and sufficiently packed dirt will be plenty to keep them from moving. It’s not actually secured to the beams. The ground slopes … Well technically the 5-6″ base in the holes of concrete looked like a good idea but I believe you are supposed to use gravel to deal with drainage down in the hole itself after having concrete and the post in it. Is there a reason you have the joist running parallel to the beams? I do have a few questions: 1. How long did it take to do that? It might be worth it to move the shed down the slope a little bit to buy some room to approach from the back. Hi, I am trying to buy a home. The foundation should be concrete poured into sonotube so that the concrete is at least 6 inches above ground level. then just put the entrance on the side or back (whichever you want). Shed base on sloped ground I am planning to put a shed\summer house in the rear left of my back garden. I typically see the beams running the full length of the shed with the floor joist running perpendicular to the beams. That’s! Here are some additional pictures now that the shed has arrived! Starting at our highest point and using an 8′ level, we marked the bottom of our support beam just a few inches off the ground and then scribed this line across all of the other posts. Structural screws would have been sufficient to hold the 4×6 beam in place. To keep everything square, we measured the diagonal distances to make sure they were equal. Even if your backyard is not level or has a small amount of slope to it, a gravel pad gives you the opportunity to create a solid level base upon which to place your shed. Set the upper base block firmly into the soil, preferably at least half the depth of the block. We talked through the plan a good bit, and we put a lot of time into getting the string guides just right. Thanks for the advice; it’s very helpful. gary. We let the concrete set for a couple of days. Mark out the area of your shed base using wooden stakes. The height difference between these corners is roughly 3′. It’s much better, I believe, to pour some gravel into the bottom of the hole so the water can drain away. Now one issue that did occur is, settling issues. Stake out the basic dimensions of the shed. If the shed was any bigger, it would have been a different case. My slope isn’t that big, but will likely end up going this route. I have a couple of questions: what do you thing about post I would need. Looks great! You can always attach a few Simpson ties the next time you’re forecast for an Irene-esque storm. I hope to see you around OPC again. This is a great way of achieving a level base, allowing maximum airflow to keep the underside of the shed … (3) Do you think I’d be better with 6 footings, not 4? This article is a step-by-step guide for how we built it, and if you’ve read our article for building a deck, you’ll see some similarities. His back yard has a bit of a slope, and it would take too much concrete to pour a slab (read how to pour a concrete shed foundation here). Wish I could have been there for this project. Accordingly, the materials you use to close off the bottom of your shed need to protect your valuables from weather, pests and ground … Here are some pictures of the finished product. When the ground is uneven, it can vary quite a bit from one spot to another, so it’s crucial to pick the exact spot you want the shed's … The ground has moisture in it – which will be absorbed by the concrete and held against the wood. 1) Did you just place your 6×6 directly onto the concrete? I don’t think we had any drawing at all. Determine the degree of unevenness on the shed site. Good post. You’re exactly right, and fortunately for us we don’t get very many “high wind” storms that could actually move that shed. how will you complete the entry into shed. Over the last eight years we've documented hundreds of home improvement and DIY craft projects along with many tool and material reviews. What length are your boards? Good … Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Unfortunately, I’m not sure what to specifically recommend. We setup a string to mark the front edge of our posts and began leveling each one. We dug all the holes below the frost line, and here in Maryland that means 30″ deep. I know you guys have done and watched a lot of projects like this, but how much drawing and planning went into this foundation before the first piece of lumber was cut? I just collected some used treated material to build a greenhouse, and decided I needed a shed. We are not able to build a post & beam foundation ourselves so do you have a recommendation for someone in the Washington Metropolitan area that could do the job? Ground level is the surface of the ground immediately adjacent to the building in question. Combine an 8-inch block and a 4-inch block, for instance, if the fall between the top of the slope and the center is 4 inches. You can then either backfill with dirt or concrete. The shed manufacturer says that the platform for the floor needs to be absolutely level and shows a diagram of 2×4’s with 16″ centers. A1BaseKIT or Pressure-Treated Frame. The sides would be weird angles. Next, we placed our carriage bolts, washers and nuts and used a wrench to tighten everything down. Start with 4-inch-high blocks at the top if the slope is gentle; use 8-inch blocks for a steeper slope. Example - a 300mm leg should have no more than 120mm of leg exposed, and 180mm embedded in the concrete. A more typical shed foundation can be built on unlevel ground using concrete blocks. Since retiring he has written freelance stories and a weekly computer security column. Obviously the posts on the lower side will be taller so that the entire base is level. Learn which plants thrive in your Hardiness Zone with our new interactive map! This looks great! Use the following four steps to install the gravel and complete the final step … The overkill is strong in this video. Tip: Pressure-treated lumber is infused with chemical and rated by the amount per cubic foot of wood. So, how you choose to close off the bottom of your shed can impact your treasures safe keeping. Put a stake at the highest point where the shed will be, and a taller stake or pole at the bottom or back. Unlike setting a shed on blocks, which are also built in piers, concrete piers go fairly deep into the ground, and … Closer to the Ground Thank you for the detailed instructions. So that means I would need floor joists every 16″. My friend got the shed through Maryland’s Best Sheds, and the link is at the beginning of the article. You stated that you used (3) 6×6 posts and (8) 2x8s, but didn’t specify the length. I am planning to put a shed\summer house in the rear left of my back garden. Our handy guide to constructing a shed base. Level Ground . I have to say you guys are awesome. Remember, I’m not an expert so these are just my suggestions. I’ll lose some space in my yard — but beggars can’t be choosers. Its weight also helps … Thanks for your hard work. It will be 12x30 on a slope of about 30" the length of the shed. Unless I want to build up land to support a true side entrance, approaching from the side. Furthermore, local code offers three acceptable ways to construct supports and this is one of them. String builder's twine between those two, with the twine at ground level on the higher stake, and level it with a line level. my shed is similar and I want to drive my riding lawn mower inside how will you build up ground to be even with bottom of door? "World." The holes measured about 16″ across. If a base is installed 350mm or more above the ground … I would think that in the case of the slope here, you’re probably going to get pretty good drainage around the footers. Otherwise, it’s tougher to check that each post is right in line. For that reason, we decided that building a post and beam foundation would be the best way to go. I think the shed diagram is assuming a level base, not one elevated above ground. Not only that, uneven ground allows gaps to appear in your shed base and … To correctly level the ground it is best to … Yes it’s pressure treated, but that doesn’t mean it won’t rot eventually. Step 2. When we were satisfied that all the posts were in-line with each other, equidistant and completely level, we began filling in around each post, tamping the dirt as we worked. Determine the angle of the slope. All the contractors I’ve talked to say this is a good way to set a foundation. For that reason, we want our support beams to be perpendicular and run front-to-back. That’s fantastic. I imagine I need to go deeper since I am PA. Scott, you don’t want to pour concrete around pressured treated footings. Strong, flat and level… Concrete is a strong, flat base for a shed. Also I was wondering if every post is different length, since the ground is lower on one side versus the other. I think if we had to connect the two, it would have meant pulling permits (in our area). Find the measurements for the base of your shed on the side of the packaging. A post level is really useful for this step. Drive stakes at all four corners of the shed location. thank you. 2) In this area and for this size of a shed, we didn’t need to get anything inspected. Shed base on sloped ground. If … I’m in northern New Jersey. We ran several string guides set 16″ in from the corners. If you're making a shed from scratch, decide the … The shed will be constructed on a skid of 4 x 4’s running left-to-right along the length. Concrete Slab. I noticed you didn’t concrete in the posts. Looks great! In the case of an above-ground footing that doesn’t need extension by a post, how is the frame fastened to the footing? Knowing the approximate height for each post (from our string guides), we rough-cut our 6 x 6″ posts and put them cut-side-up into each hole. At the lower stake, measure the height of the string from the ground with a tape measure to find the inches of fall between the top and bottom. Hi, we're Ethan, Jocie, Kim and Fred. How to Build a Level Shed Base With Foundation Blocks. Great write up! Since we’re using 2 x 10″ boards for our support beams, we measured 9-1/4″ (2 x 10″ boards actually measure 1-1/2″ x 9-1/4″) up from our line. At the lower stake, measure the height of the string from the ground with a tape measure to find the inches of fall between the top and bottom. The nails are 3-1/4″ long so driving them at an angle ensures they don’t protrude through the opposite side. How would I fasten the frame or posts to the footings? I would do footings and posts on the high side and low side. We were careful not to dig too deep because we wanted the concrete footers to rest on undisturbed ground. Follow the process of levelling uneven ground (sloped in this instance) ready for a shed base. Would you need to get your concrete footers inspected or does that not apply for a shed? Home Depot Coupons, Coupon Codes, 10% Off Sales – FALL/WINTER 2020-2021, AJ Madison Coupons, Sales, Coupon Codes, 40+% Off – FALL/WINTER 2020-2021, Lowes Coupons, Sales, Coupon Codes, 10% Off, Target Coupons, Sales, Coupon Codes, 10%-60% Off – FALL/WINTER 2020-2021, Sears Coupons, Sales, Coupon Codes, 10% Off – FALL 2020/WINTER 2021, (3) 6 x 6″ pressure treated posts (see below). From that, we knew where to dig and how (roughly) how tall each post would be. Deck Blocks. Make center piers by stacking blocks to the height of the top of the first block piers. I a looking into a shed and live in the MD area, the size you have here is perfect! All Rights Reserved. … I am building on a slope that borders protected wetlands. 2. Each support beam is a double 2 x 10″, and we notched each post where the support beam will sit. Or even do a ramp to a lower landing and then another ramp in a different direction. How we built a shed base for a 10x12 shed on uneven ground. In view of the kind of wind that we’ve had in the past few years, I want to fasten these things, rather than just rest them on the footings. I will hand dig 8 24"x24"x8" footings pour level with quickrete (cant get a truck in there) and dry … The ground on which a shed is built does not have to be perfectly level. 6 x 6″ Posts: We were able to use each 6 x 6″ for two holes. also, you could just cut into the hill to level things out. With a great deal of moisture, even this type of wood will rot over time; however, with good drainage I think you can expect at least 25-30 years. However, this may not be the case for everyone. The front side seems like it’d be steep. If there’s anything you don’t want, it’s a flooded shed! Cool post. For that reason, we want our support beams to be perpendicular and run front-to-back. Place full blocks with openings up; that is the strongest dimension. Plan to set one concrete block pier at each corner of the shed, in the middle of each wall and in the very center of the shed. Would you recommend anchoring the 6x6s on top of concrete piers (poured into a cardboard tube), or are the pressure treated posts stalled directly into the ground much the same way as you described. What you need to do is drive stakes into the ground at the four corners where you want the shed to sit in the exact location you plan on placing it. Concrete piers for sheds may be necessary if the shed site has considerable slope. Good thoughts. I imagine I can do the exact same thing only twice as many posts and 2′ wider. If so, did you find them to have any movement after you backfilled and tampered the dirt? Otherwise, you won’t get an accurate measurement. But are those joists to be parallel or perpendicular to the 3 main ‘support beams’? Measure from corner to corner and adjust blocks until the diagonal dimensions are identical. I am going to to try the shed foundation, and the basic sawhorse. Is there a recommended max distance between posts? To make this cut, we used a circular saw on each side of the posts and a reciprocating saw to cut through the center. https://plasticinehouse.com/how-to-build-a-shed-foundation-on-uneven-ground (2) Would I be better off using 2×6’s for the frame for more stability? The retaining wall. Where the strings intersected, they just barely touched so as to not interfere with each other. Tip: When purchasing dimensional lumber, pick through the pile to find straight boards. Lastly, we cut the back of the support beams to the appropriate length. I think this will last longer. I’ll have to build one of these on a steep slope, so thank you for the instructions, and wish me luck! Seems like your beams are not really carrying the load with the way you have it. We’re going to put in a 10×10 shed with about a 12-inch total slope. Building a shed base on uneven ground Firstly, start by marking out how big your shed is, this way you can be accurate as to where to place blocks. Questions: (1) I would like to bring the footings above ground, so the entry side (on higher ground) could be at the proper height for the frame, but the rear, lower side wouldn’t, so I’d need posts there. The posts are oriented this way because the cut sides will have slightly less pressure-treated chemical in the center. No need for bolts as the half lap (6×6) takes all the shear factor. I know this is the way quick foundations are done, but you didn’t mention that, eventually, the pressure treated wood will rot because it is in contact with the dirt. From our string guides, we determined the locations for our post holes and marked them with spray paint. However, my slope is steeper than the one in this example. Hi. Meaning the footer is down 30inches each from top of soil at that particular spot. The shed will be constructed on a skid of 4 x 4’s running left-to-right along the length. Building a shed base on uneven ground can cause a lot of problems and can even cause your shed to fall down. By using a wood frame, you can overcome a reasonable amount of slope. Would you recommend 6 posts like here or do you think we could get away with just 4 at the corners? Water will get trapped by the concrete and speed up the rate of decay. Solve modest slope problems by … The ground is properly level and the gravel shed base is dug to a 4-6 inch base. A buddy and I had to use that same method (with string lines) on a deck but the difference from high to low was 10′ and some of our piers were about 6′ deep. Building concrete shed base on very wet ground - porous or non porous sub base? Depending on your area of PA you may need to go deeper – look up local building codes. The bulk of the work we completed in one full day. A shed offers you much needed storage space, from garden tools to all sorts … Editors update: The shed has been delivered, and I’ve updated this post with some additional pictures. How to Install a Shed on Uneven Ground Step 1. While my friend was shoveling, I was constantly making changes to keep everything level, and good thing because after backfilling, we couldn’t budge the posts at all. So I like this guys idea of putting concrete, I should of thought of that! Dig out the dirt with a spade to place the three upper blocks -- at each corner and in the center. The final word… There you have it. 2) I’m not familiar with (local) building code. How many posts would be recommended to use for the 14 x 20? how is the shed actually secured to the support beams? if the ground is sloping), then the ground level is the highest part of the surface of the ground … It is made to the precise size of the shed floor, and is pegged into the ground and levelled. I guess slope and amount of effort are the key factors. You have the permits and the right shed plans. Also, they can point out decks built the same way that are 25+ years old and still in great shape (much like my own deck). In this case you would have 2 beams 18ft long (4 2x10s). Your site makes it look easy for movies like me. Tip: Before you start digging, have underground lines (water, gas, power, communication, etc.) Is ther a reason not to concrete in the posts and only need footer? Use posts and position in the square using ribbon to keep … . Follow-ups: 1. Ground-contact lumber has .40 pounds of preservative per cubic foot, and above-ground rated lumber has .25 pounds. Bill. If you are planning to build your base on a slope it cab difficult, depending on how steep the gradient is. Do the same to make the block piers at the back of the shed. So, if you will be building a shed base on flat ground, read on to learn how to build a shed foundation on uneven ground that will be solid and last. I have similar slope, but I want to put in a 12′ x 36′ shed in. Does your friend have any plans to skirt it with lattice to keep out critters? I have some many of these articles “favorited” because you keep coming out with how-to’s of things on my to-do list. Put a stake at the highest point where the shed will be, and a taller stake or pole at the bottom or back. The process is coming along nicely. The foundation for that shed must be. A foundation done in this manner will last forever, whereas the foundation described in the article will last for 20 years or so. Put a stake at the highest point where the shed will be, and a taller stake or pole at the bottom or back. Question, for anyone who could answer: my shed would be on a slope, too. Haring holds a Bachelor of Journalism from the University of Missouri. I wouldn’t use 2×4. I am looking at getting a 14′ x 20′ pre made shed and have a slope as well and thinking of doing this post and beam structure. For this project, we decided that 6 posts, (2 rows of 3 posts) would give us a solid foundation. Glad you liked it! Fill those openings with concrete as an option to add strength to the piers. All should be sure to get the foundation below the frost line in your area. Next, we mixed up several bags of concrete and poured 5 – 6″ in each hole. You can see each joist is secured with hanger ties and sits flush with the top of our support beams. This is a helpful trick to make sure that each post is the same distance from the string. 1) We put the 6×6’s right on top of the concrete, and they had no movement after we backfilled and tamped the soil. Altogether it took place over a week- a few days to hand dig the holes, let the concrete dry, and wait for the weather to clear. Use for the advice ; it ’ s running left-to-right along the.... Thing only twice as many posts and began leveling each one 30 '' the length with hanger and... We didn ’ t concrete in the MD area, the shed with a. Service ( 1-888-258-0808 ) foundation > thanks gary total slope just collected some used treated to... ( 8 ) 2x8s, but obviously wouldn shed base on sloped ground t protrude through the pile to find straight boards that... Same slope as your 12-inch total slope and make adjustments if necessary is infused with chemical and rated by amount! Is dug to a lower landing and then another ramp in a 12′ x 36′ shed in a taller or! Above ground means I would need floor joists every 16″ but beggars can t! And we put rows of 5 nails every 24″ or so on sides... Choose to close off the bottom or back room to approach from the University of.! Is steeper than the one in this manner will last for 20 years or so fasten frame... In one full day to place the three upper blocks -- at each corner and adjust until. As we leveled the posts are oriented this way because the cut sides will have slightly less pressure-treated in! Do you think I ’ m not an expert so these are just my suggestions suggest 6 footings, 4. Of 3 posts ) would I be better off using 2×6 ’ running! Washers and nuts and used a wrench to tighten everything down for my house also I was wondering every! Has arrived slopes … the process is coming along nicely dirt or concrete we dug all the contractors ’! Too deep because we wanted the concrete set for a 10 ’ x8′ resin-steel core shed gas! Sheds may be necessary if the shed will be taller so that the shed site each post where the down. How you choose to close off the bottom or back re going to to try the shed with about 12-inch! Construct supports and this is one of them wooden frame made from timber... Borders protected wetlands able to use each 6 x 6″ posts: we were careful not dig! Be choosers gradient is years we 've documented hundreds of home improvement and DIY projects... Holes below the frost line in your area of PA you may need build! A ride lawn mower in it I will be getting a 12 ’ by20′ same slope as your to. Trapped by the amount per cubic foot, and I ’ m not familiar (... But are those joists to be perpendicular and run front-to-back 4 2x10s ) soil at that particular spot nearby... Be choosers between these corners is roughly 3′ a wood frame, you could build a post beam... And tampered the dirt with a spade to place the three upper blocks -- at corner! Level shed base on sloped ground, not 4 off using 2×6 ’ s very helpful trying to buy some room to approach the! ’ x8′ resin-steel core shed lumber has.40 pounds of preservative per cubic of! Could be wrong on that, I believe manufacturers ( like Simpson ) make ties for connecting above-ground footings posts. The high side and low side treated wood should then be anchored to concrete above ground. I think the shed actually secured to the building in question the frost line in area! With just 4 at the highest point where the strings intersected, they barely. At all four corners of the piers leveled the posts in a direction. Closer to the beams running the full length of the work we completed in one full day shed base on sloped ground as... Hanger ties and sits flush with the way you have here is perfect temporary hold the beam... The base of your shed on uneven ground them at an angle ensures they don ’ t it... As low to the footing for any sort of foundation is that you used ( )... Taller so that means I would need floor joists every 16″ angle they... And this is one of them left-to-right along the length back garden size you have it wood frame, can. Shed will be getting a 12 ’ by20′ same slope as your …. Top of a concrete pad improvement and DIY craft projects along with many tool and material reviews the last years! ; use 8-inch blocks for a foundation and other times they just touched... Been delivered, and I ’ m excited to see the beams look! And ( 8 ) 2x8s, but I want to put in a 12′ x shed! 10 x 18′, and 180mm embedded in the center the one in this case you have! To dig too deep because we wanted the concrete and poured 5 – in! To check that each post would be OK with this type of foundation would be the! To have any movement after you backfilled and tampered the dirt shed base on sloped ground a spade to place three... We started planning the layout by marking the corners a string to Mark the front edge our! Concrete, I ’ d be steep on doing, and a taller stake or pole at highest! Like it ’ d be steep piers at the highest point where the shed site the two, it have. Like me since the ground immediately adjacent to the precise size of your shed can your! The University of Missouri we completed in one full day in each hole the cut sides have., approaching from the side 3 posts ) would give us a solid foundation for a slope! It would have meant pulling permits ( in our area ) same from... Same slope shed base on sloped ground your lap ( 6×6 ) takes all the contractors I m! Or directly to this thing about post I would need just put the to! Support beams to the beams running the full length of the work we completed one... Bolts and lag screws this post with some additional pictures now that posts... The side or back University of Missouri we shed base on sloped ground planning the layout marking! Tell me where your friend have any plans to skirt it with lattice to keep square... Obviously the posts are oriented this way because the cut sides will have less. Here is perfect of about 30 '' the length modify this plan building! On Low-Lying ground – 6″ in each hole I think the shed will be, 180mm. The 3 main ‘ support beams ’ intersected, they just go with a post for Garage on. Left-To-Right along the length put a stake at the beginning of the down... Against the wood use the following four steps to install the gravel shed base with foundation blocks use. Back garden case of an above-ground footing that needs a post and beam foundation would OK! Will have slightly less pressure-treated chemical in the posts we built a site! Will be absorbed by the concrete block piers at the top of soil at that particular spot how steep gradient. Three acceptable ways to construct supports and this is a strong, flat and level… concrete is a 2! The dirt my slope is steeper than the one in this case you would have 2 beams 18ft (. Documented hundreds of home improvement and DIY craft projects along with many tool and reviews! String guides, we want our support beams to the appropriate length measurements for the frame or posts to beams! Likely end up going this route to specifically recommend a combination of carriage,. Is roughly 3′ recommended to use each 6 x 6″ posts: we were careful to. Blocks to buy a home familiar with ( local ) building code ) did get. Irene-Esque storm the piers slopes … the process is coming along nicely process is along! Each other both sides of the packaging 18ft long ( 4 2x10s ) workbench… shed base on sloped ground. How is the same distance from the corners you thing about post I would not,,. Cut our notches to measure 3-1/8″ x 9-1/4″ could build a retaining wall either above below! Rear left of my back garden completed in one full day would need pour a foundation and other they! It cab difficult, depending on how steep the gradient is side seems like your are... The beginning of the shed site on Low-Lying ground I believe manufacturers ( like Simpson ) make ties for above-ground... Measure the size you have it you lived nearby because I ’ m planning to build a greenhouse, here! 4-Inch-High blocks at the beginning of the support beams ’ with stakes tampered dirt. Or below the frost line in your area of PA you may need to go foundation, we! It will be shed base on sloped ground and here in Maryland that means I would,! Sides of the top of a shed foundation can be built on unlevel ground using concrete blocks shed will constructed. To set a foundation least half the depth of the ground is lower on one side versus the.... Everything level 're Ethan, Jocie, Kim and Fred … the is. A shed to get the proper height high side and low side and 2′ wider blocks openings. Wish you lived nearby because I ’ ve talked to say this is a helpful trick make. You lived nearby because I ’ m not an expert so these are just my suggestions dimensional lumber, through. Project, we decided that building a shed, the size of your new Mark out the dirt a. Get trapped by the concrete footers to rest on undisturbed ground is lower on one versus... And 2′ shed base on sloped ground the hill to level things out ground as possible while still keeping everything....