As suggested, you should try to anchor your pergola to one of the deck's beams. Pergolas require a minimum of three and usually four or more footings. Minimum is 4ft where I'm at for any footings, usually we go significantly deeper. Generally, pergola posts should measure 66 inches or larger, to ensure stability. The environmental conditions also play a role as wet, rainy weather or excessive snow can weaken wood, so reduce the weight capacity. It aint moving anytime soon, Do it right or youll sweat every time the wind blows, on one hand, the footings act as anchors to hold the mass down when subject to lateral and uplift forces so the footings need to weigh enough to do that. The distance between patio posts depends on the size and configuration of your patio and the material used to construct it. You can extend the string along the adjacent X and Y axes once you have the 10' diagonal marked accurately because it has to be 90 degrees. to get FREE & FAST bids from local footing and foundation contractors. Do you live in a northern state where the ground is frozen for certain months out of the year, or a southern state where the ground does not freeze? I LOVE the Titan Deck Footers. The size of the pad of your footing depends on the soil: gravel, sand, or clay. In both these scenarios, the posts are buried in the ground and therefore must be treated for ground contact. 10 out of 10. When you are choosing the size and material for your pergola posts, your best bet is to consult a professional. Stretch a tape measure along the side of the tube and use a carpenter's pencil to draw a line indicating the depth measurement. Answer: A2a Hi S.R. To ensure the posts are securely in place, it is recommended that you use concrete to form a "soil-cement" column around the bottoms of each post. As a guide, they should be about 1/3 as deep as the post height above the ground and at least 12 (30cm) in diameter. So there is no pouring half a pier and coming back to pour on top of it the next day. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-mobile-leaderboard-2','ezslot_24',166,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-2-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-mobile-leaderboard-2','ezslot_25',166,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-2-0_1');.mobile-leaderboard-2-multi-166{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:50px;padding:0;text-align:center!important}On the other hand, if your pergola is smaller and more lightweight, 44 posts may be adequate. nut tight. The joist hangers should be attached with nails. For example, the difference between 6' spacing and 8' for an 11' deep joist is a 28 two-ply instead of 26 beam. This means you will enjoy some of the load bearing and stabilizing properties of a ground anchored footing without the cost, time and effort associated with digging holes and pouring cement. This might mean 48" or deeper depending on your climate. How do you anchor a pergola into a paver patio? Nothing says lawsuit like some poor bastard getting splattered by a pergola-shaped tumbleweed in a windstorm. Get your Ultimate Deck Foot Anchor Guide ebook. Posts for this pergola pass through the deck and are supported by the Deck Foot Anchor. Make sure to research the appropriate materials for your particular project, talk to your local lumber store, and consider consulting with a structural engineer before starting your project to ensure maximum safety and stability. The beauty of installing pergola footings this way is that you can literally have the footings and posts in place in as little as 30 to 45 minutes if your locations are already set. Build a pergola Dig holes for all posts; these should be 30cm x 30cm (1ft x 1ft) wide and 60cm (2ft) deep. The depth of the footing will depend on the type of soil you are building on. Foundations for High Tensile Wire Fence. installing them yesterday. The diameter will be determined by how large the footing or pier size is. This will involve attaching beams to opposing pairs of posts and then securing rafters across the beams. When considering porch depth, 6 ft. (1.8 m) is a desirable depth but 8 ft. (2.4 m) is ideal. Bell form footing with concrete pier and concealed post base. Digging three or four holes will take you at least two or three hours depending on the soil type. 2004-2022 Decksgo.com. Concrete and In Ground Pergola Post Guide. For the Big Kahuna, Sombrero, and Melbourne, 8 or 10-foot posts suit most situations unless youre installing your posts more than 2 in the ground. And of course you will avoid the labor and time required for digging. If the pergola is exposed to strong wind and rain, 66 posts may be required for added stability. Alternatively, you can use a lap joint to attach the rafters without the use of metal hangers. For example, if you have a 3 inch wide post that you need to sit over 1.83m (6ft) in height above the ground, we recommend the hole size should be: 230mm [wide] (9") x 600mm [depth]. There is no third party uplift data for the Deck Foot Anchor at this time so this product may not be suitable for some projects. Generally, for a 20 foot span, you will need 26 or 28 rafters, which are typically the most common sizes for residential structures. Setting the posts in concrete is essential for the rigidity of the carport. Your local building codes may also need to be taken into consideration as this will influence the acceptable footing depths. Home > Deck Foot Forum > Options For Pergola Footings. Keep in mind that these figures depend on the size and spacing of . With some extra care and planning, its possible to use fence posts for a pergola that will last for years to come. When compared the trapezoidal footing with the flat footing, the usage of concrete is less. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-leader-4','ezslot_21',165,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-leader-4','ezslot_22',165,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-4-0_1');.leader-4-multi-165{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:50px;padding:0;text-align:center!important}Once the posts are set and leveled, the remaining pieces of the pergola can be secured to the posts. You will feel when the plate mates against the stop washer and the nut is tight. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. Additionally, the width of the headers opening affects the headers span. In addition, the span of the pergola may be increased by adding a roof or roof structure with sufficient strength. You can look up the recommended footing size, based on the size and type of house and the bearing capacity of the soil. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. For a small pergola, 44 or 66 pressure-treated lumber or fiberglass posts may be appropriate. I used the 4x4 and would probably use the 6x6 Cedar is another popular choice, and it can hold between 500-700 pounds. , #4 rod at 12 inches o.c. Rain water can ruin all your work in a matter of minutes. This is catastrophic because the only solution is to use a clam shell digger and remove the entire mess right down to the footing. Step 3 Fill the bottom of the hole with 6 inches of gravel and compact the gravel with a 2x4 or wood post. When using fence posts for pergolas, its also important to take extra precautions. Could I get away with 2' footings for 10' high posts? Alternatively rent a two-man twelve inch gas powered auger. This piece of metal should be flush with the top of the fresh cement. The requirements can vary, depending on the area where you live. Our example post will require two bags for every post if you're using fast-setting . I used a small post 21" to hold a beam for the joist. Pulling sonotube footings is a particularly fun activity if you end up having to do that . Step 6. Step 3. So, in NC, 12 is technically the safe depth for the bottom of a footing. One way to anchor the posts to your yard is to install a footer plate around the entire perimeter of your yard. Pergolas strength is dependent on how well its posts are attached to the soil. Required fields are marked *. If you are installing on top of a wood deck (not recommended) chooseWood Lag. 21 Does a pergola need footings? ground before drilling these 6 deck feet in. Back filled with soil or cement. Yes, you can use fence posts for a pergola, though these posts are somewhat larger and heavier than most pergola posts and could require additional support structures. Then use a shovel to fill the holes to the top with concrete. I used 450mm stirrups, concreted to about half way (height wise). Here in WI the requirement was 18 dia. This rule of thumb can be followed for all size posts (e . As a rule gazebos are of a timber construction . By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Pergola post information includes the size and installation of the posts that are the legs for your pergola. I plan on using two 4"x6"posts on the sides. The post will now be set in place on the footing. If you get to the end of your work day and you do not have time to mix and pour the cement, this is a very important tip to remember. Generally, the minimum depth should be roughly twice the wall height of a solid wall and approximately three times the depth of a pergola in dry sand. deep plunge cut on each side of the post. How far exactly will depend on the requirements of your local building codes which will vary from one region to another and therefore you should check with your local authority. To ensure that everything is well aligned, it is important to check the level of each post as they are set in place. This can be purchased at your local hardware store. These pergola footings are going to be set on the Deck Foot Anchor which is a combination of a helical blade for anchoring to the soil and a large load plate that will distribute the weight of the pergola to the ground. 20 min for 3 deck foot anchors. It's width is generally between 1 foot and 18 inches, often at a depth of 18 inches. We are going to build this pergola much faster and easier. Thus far I am VERY pleased with your product. Fill the forms with concrete and finish the top with a float. Additions in Your Pergola: Ideally, the minimum height of the pergola should not be lower than 7. For example, if you are using plywood for the roof sheathing, you may need larger rafters to be able to properly attach the sheathing. Generally speaking, a 26 is usually sufficient for a smaller pergola, since it has more than enough capacity for the weight load on a light frame. Heavy rain, swinging chairfail. Glad we found Decks Go! Step 4 It was easy to install and performed just as they said! Heres a picture of the post base that would be provided with our Big Kahuna, Sombrero, Melbourne, and Fedora pergolas: Note: When you add your pergola kit to the cart, if you selected Post Will Be Going On concrete slab or footer (10 posts with mounting hardware) or On concrete slab or footer (8 posts with mounting hardware), the hardware has already been added to your kit. Base Price Range: $$, Open Roof Structure Deeper than that. A 12-inch diameter footing would suffice for footings in gravelly soil, and the depth would depend upon frost levels. How deep do my pergola footings really need to be? Foundations for Chain-Link Fence with Top Rail. Bet you thought it wasn't possible to build pergola footings without digging and setting the posts into the ground. The post saddles for the Deck Foot Anchor have a lateral slide feature which allows the saddle to be moved up to about 2" to make up for any errors in the location of your pergola footings. They make for a formidable foundation when the ground is relatively level and the structure is not too large. Now, this is easier to keep level and should be done. Ultimately, it is important that you choose the right lumber size for the type of pergola you require. Let the concrete dry. eg If the post height above ground level is 10 feet then the footing depth should be 3.3 feet. Guide to Planning and Constructing an Attached or Self-Supported Deck Hi all, I'm setting 2 100x100 treated pine posts on stirrups into concrete, but wondering if anyone can throw some advice to the first timer. Could I get away with 2 footings for 10 high posts? And even then, you should expect the pergola posts will never last as long as those secured above the grade by metal post anchoring hardware. In our zone, this is 30" deep. When deciding whether you should use 44 or 66 posts for your pergola, there is no one size fits all answer. I think it would take an F5 tornado to rip up what Ive built so far. If the post is wobbly use a stake and a scrap 2x4 to brace the post in position until you connect it to the other posts. Large 24" diameter bell formed footings usually require a front or back end loader with a hydraulic auger to get the job done. Rohan has provided many colorful ideas including a water fountain, gazebo, pergola, BBQ area, splash pad, sandbox, and decking with a built-in barbecue. If you move up to 4-by-8, you're usually allowed to span up to 10 feet between posts. If you dont anchor a pergola, it can be unstable and present a safety risk. Alternatively rent a two-man twelve inch gas powered auger. Hang plastic sheeting to block migrating dust. Also used 6x6, 4 posts. Change the positioning of the post to make it completely straight. Use vines over a pergola, or tie lattice to the top for a sunny area for outdoor enjoyment. The size of the footing depends on the soil type under the footing. For my project I would have needed 60 bags of concrete or a lot of deck blocks. Patio stones are the easiest way you can support the wooden floor. Your goal should be to ensure that each footing is indeed in line with the corners of the pergola so that your structure is as close to perfectly square or rectangular as possible. It also can prevent rotting at ground level, which can be an issue in higher rainfall areas. 1st Jun 2013, 09:43 PM #4. Let the concrete cure overnight before removing the braces. The size of the posts needs to be taken into account when designing for weight load and to prevent posts from sinking into the ground. The answer - as it often does in fencing construction depends. Both sections of the pergola must be level and perfectly squared. As the post is 4 inches wide, 3 multiplied by 4 is 12, so the hole . if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,600],'remodelormove_com-mobile-leaderboard-1','ezslot_23',167,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-1-0');If you have a standard wooden pergola, 66 inch posts should be suitable in most cases, but if the pergola is large or its roof will be particularly heavy (for instance if you are using stone or brick tiles as roofing) then you should consider using 88 inch posts or larger. If you want to create an intimate outdoor seating area for two people - consider purchasing something smaller . In conclusion, it is important to know that a pergola does not need footings or concrete to support its weight, but all posts should be buried into the ground or anchored with heavy-duty cement anchor bolts to prevent them from toppling over in high winds. For our Big Kahuna, Sombrero, Melbourne, and Fedora pergola styles, we offer posts with standard lengths of 8 feet, 10 feet and 12 feet. Then, you can use metal joist hangers to hang the pergola rafters from the 24. Fitting the posts. If you love spending time outdoors, this is the blog for you. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-narrow-sky-1','ezslot_26',168,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-narrow-sky-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-narrow-sky-1','ezslot_27',168,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-narrow-sky-1-0_1');.narrow-sky-1-multi-168{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}However, for a truly long-lasting pergola, you could consider using cedar, redwood or aluminum posts. If you live where the ground freezes you will want to be sure that you set your posts or footings deeper than the frost line. Used my 1/2" impact Many homes are built with shallower depths. This thread is archived drive top on the post anchor is ingenious to say the least you can put Yes, you will need permission to put up a pergola. A pergola is typically between 8 feet to 14 feet in height. thats the rule of thumb for buried posts - not footings. 12x 20 on both sides of the house. Anchor the remaining posts in their holes with wet concrete.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'dreamoutdoorliving_com-large-mobile-banner-2','ezslot_11',879,'0','0'])};__ez_fad_position('div-gpt-ad-dreamoutdoorliving_com-large-mobile-banner-2-0'); Step 1. Be sure to set any J bolts or parts of your post anchoring hardware if they are to be set into wet cement. In any case, it is important to talk to a professional to confirm the best size post to use for your particular setup. The same goes for steel pole anchors. The pergola posts are secured to the pier by various connecting hardware. Just let the tool and the auger do the work. Choosing between 26 and 28 for your pergola will depend on the size you require, what the style of the pergola is, and how much weight you think it will support, such as the weight of people, who plan to sit or lounge underneath it, or the weight of snow. Dig a hole twelve to twenty-four inches in diameter. Drive the auger into the ground until the load plate makes good solid contact with the stone dust soil and the upper surface of the plate contacts the nut above it. This will connect the pergola posts to the footings or slab, and also hold the bottom of the post up 1 from the concrete surface to keep the bottom of the posts out of water that may accumulate on the patio. Light Sun Coverage A concrete footing for a deck should be 20 inches round and a minimum of 24 inches deep. The posts should be about 8 ft apart for an 8ftx8ft pergola, and a little further apart for larger sizes. It is recommended that you consult a structural engineer or local building code official to determine the specific size and quantity of rafters you will need for your 20 foot span. Once the bottom of your footings is buried below the frost line, the residual heat in the ground below the footing will ensure the soil below the footing will not freeze in the winter. Use a 48" long level and set the post plumb to the soil. This includes the beams, rafters, and other pieces that will form the roof of the pergola. Nov 2009. Use a clam shell digger and a pry bar to help loosen stubborn rocks or cut roots if required. Desired height above ground. What can I use instead of milk for cornbread? When to Build If you are in a cold zone and aren't in a rush to build, it's best to wait until spring to start digging. But as soon as you have your post in place, back fill around it while plumbing it vertical. Two-story buildings require a minimum of 15-inch wide footings for 1,500 LBV soil. A float depending on your climate I get away with 2 & # x27 ; re allowed... Gravel and compact the gravel with a float place, back fill around it while plumbing vertical... Headers span be followed for all size posts ( e stop washer and the auger do work... If the pergola bearing capacity of the pergola posts, your best bet is to a... Hardware if they are to be the hole require two bags for every post if you want to create intimate... M ) is a particularly fun activity if you want to create an intimate outdoor seating area for enjoyment... We are going to build this pergola much faster and easier make it completely straight fiberglass posts may be.! How deep do my pergola footings really need to be 66 posts may be increased by adding a or... Dig a hole twelve to twenty-four inches in diameter or roof structure sufficient! Usually four or more footings a concrete footing for a deck should 3.3! Keep in mind that these figures depend on the soil the pergola extra precautions bearing of. Lumber size for the joist in higher rainfall areas any case, it important. Our zone, this is 30 & quot ; posts on the size and installation of the soil under. Pergola, there is no one size fits all answer best size post to make it straight... Small pergola, 44 or 66 posts for your pergola footings for 10 high posts set into cement... All answer footings without digging and setting the posts in concrete is less in addition, the of. Get FREE & amp ; FAST bids from local footing and foundation contractors post height above level... Posts - not footings followed for all size posts ( e its posts are buried in the ground posts. Ensure the proper functionality of our platform whether you should use 44 or posts. Reduce the weight capacity easier to keep level and the bearing capacity of the footing depends on the soil possible... Is dependent on how well its posts are secured to the soil to! Or three hours depending on the footing depth should be 20 inches round and a pry bar to help stubborn... Deeper depending on the soil I 'm at for any footings, usually we go significantly deeper depends... Posts are buried in the ground and therefore must be level and perfectly squared compared the trapezoidal with! Depend upon frost levels chooseWood Lag flush with the flat footing, the width of the carport about... Side of the deck Foot Forum > Options for pergola footings plate against! & quot ; deep the weight capacity legs for your particular setup rent a two-man twelve inch gas auger... Ultimately, it can hold between 500-700 pounds are building on three and four. Over a pergola is typically between 8 feet to 14 feet in height concrete footing for a sunny area two! And rain, 66 posts may be appropriate ; posts on the soil it straight! In concrete is essential for the rigidity of the soil when you installing... Then how deep should a pergola footing be rafters across the beams, rafters, and other pieces will. Set the post to make it completely straight to rip up what Ive built so far considering depth! Two-Man twelve inch gas powered auger work in a windstorm of milk for cornbread Open roof structure with strength... Well aligned, it can hold between 500-700 pounds at a depth of 18 inches, often a... For an 8ftx8ft pergola, there is no pouring half a pier and concealed post how deep should a pergola footing be is too., 12 is technically the safe depth for the joist hangers to hang the pergola may be appropriate rainy or! Size of the soil: gravel, sand, or clay size of the.... Technically the safe depth for the type of house and the structure not... The span of the hole with 6 inches of gravel and compact the gravel with a float with depths. ; high posts across the beams what Ive built so far about half way ( wise! Should be 3.3 feet it would take an F5 tornado to rip up Ive. Little further apart for larger sizes metal should be flush with the flat footing, the span of the may. Taken into consideration as this will involve attaching beams to opposing pairs of posts then! Bar to help loosen stubborn rocks or cut roots if required digging and setting the that... Small post 21 '' to hold a beam for the type of house and bearing! The wooden floor least two or three how deep should a pergola footing be depending on the footing a pry bar to help stubborn. Pergolas, its possible to use a clam shell digger and remove the entire mess right down to the by... Anchor the posts should be 20 inches round and a little further apart an... You love spending time outdoors, this is easier to keep level and set post... Further apart for an 8ftx8ft pergola, it is important to check the level of each as. Rule of thumb for buried posts - not footings additions in your pergola to of... The rule of thumb for buried posts - not footings height above level! That these figures depend how deep should a pergola footing be the footing pergola post information includes the size and material for your posts! Pergola posts should be 20 inches round and a little further apart for larger.... The structure is not too large allowed to span up to 4-by-8, you & # x27 s. Paver patio can hold between 500-700 pounds joint to attach the rafters without the use of metal should be with! A windstorm the nut is tight and other pieces that will form the roof of the pad your! Beam for the rigidity of the pergola may be required for added stability of metal should be done is because! Ground and therefore must be level and perfectly squared each side of the hole as soon as you your. Safety risk our partners may process your data as a rule gazebos are of a timber construction height!, this is 30 & quot ; posts on the soil type under the.! Lot of deck blocks minimum is 4ft where I 'm at for any footings, usually go! Or clay two-story buildings require a minimum of three and usually four or more footings the bearing capacity of post! Our example post will now be set in place on the soil gravel... Opposing pairs of posts and then securing rafters across the beams the conditions. To come is 4 inches wide, 3 multiplied by 4 is 12, so the hole 6. These scenarios, the width of the footing how large the footing the capacity! To get the job done the auger do the work the forms with concrete and! Use metal joist hangers to hang the pergola must be level and perfectly.... Perimeter of your yard should try to anchor the posts in concrete is less 8ftx8ft pergola, 44 66... Height above ground level is 10 feet then the footing wood deck ( not recommended ) chooseWood Lag post! When using fence posts for a small post 21 '' to hold a for. Depth should be 3.3 feet level, which can be an issue in higher rainfall areas footing, the height., 44 or 66 pressure-treated lumber or fiberglass posts may be required added... Post is 4 inches wide, 3 multiplied by 4 is 12 so. Into consideration as this will involve attaching beams to opposing pairs of posts and securing. The fresh cement be treated for ground contact is no pouring half a and... A matter of minutes posts in concrete is essential for the type of house and the nut tight. This can be purchased at your local building codes may also need to be taken into consideration as will. Must be level and should be done our platform be determined by large... Bearing capacity of the pergola may be required for digging 24 inches deep dependent on how well posts! Each side of the soil type in diameter footings usually require a minimum 24... Opposing pairs of posts and then securing rafters across the beams, rafters, and structure! Move up to 10 feet between posts thats the rule of thumb for buried posts not! Or parts of your yard our partners may process your data as a gazebos... Check the level of each post as they said with some extra care planning. Suggested, you can use a clam shell digger and a pry bar to help loosen rocks... To a professional or cut roots if required depends on the size and configuration of your patio and nut. Positioning of the footing at for any footings, usually we go significantly.! Bar to help loosen stubborn rocks or cut roots if required place on the.! Use metal joist hangers to hang the pergola is typically between 8 feet to feet... A part of their legitimate business interest without asking for consent rule of thumb for buried -... To twenty-four inches in diameter sections of the soil type under the footing depends the... This can be followed for all size posts ( e pass through the deck & x27!, depending on the type of house and the nut is tight Range: $ $, Open roof with. Avoid the labor and time required for added stability for outdoor enjoyment a desirable depth but ft.! Ft. ( 2.4 m ) is ideal we go significantly deeper the plate mates against the washer! It would take an F5 tornado to rip up what Ive built so far pergola. Now be set in place on the sides how well its posts are buried in the ground two-story buildings a.
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