Full Specification: Wet cast smooth finish. Roughly lay out the components for the wooden frame Power shed base. If the intended site is larger than the size of the building, we recommend it is raised off the base. Bearers will help protect the floor and lower part of your shed. Have built a shed base, 10m2, and am having it filled with concrete tomorrow. Fill the 6" (150mm) around the edge of your new base with pea shingle to prevent 'splash-back' as rain drips to the floor. •    You may also want to consider where the building is most likely to receive natural light or have a nice view, especially for buildings such summer houses or log cabins. You could opt to place your bearers on a concrete pad. It's our iconic Use a tape measure, spirit level, and tri-square to ensure the base with shuttering is 100% level and square. Lay the necessary foundations to assure that your garden shed is built to last, with our easy to install shed bases from B&Q. The timber floor, with its bearers below, will allow air flow under the entire shed. These can be installed on a level lawn or the frame can be placed onto a patio using the metal L … These are smaller timber bearers - usually 3 x 2 inches - that run perpendicular to the timbers of your wooden frame. The surface of the paving slabs should be slightly higher than the surrounding ground to encourage rain water drainage. Once you are at the checkout select the finance option that suits you and choose Klarna. Please try again. If the floor of the shed is likely to come into contact with a lot of rainwater then bearers could significantly increase its life. When deciding where to place your garden building, you need to take a few things into consideration. Take a look at our timber cabins here . •    Try to visualise what the garden building will look like in the position selected – you may not want to carry large or heavy objects into hard to reach areas of your garden. Remove any vegetation from the area where you have chosen to contrast your base. 8'x12' instead of 12'x8') please ask for a floor plan. Please choose the length of joist you would like to purchase and also how many pieces. Make sure that access is going to be adequate for the intended usage. The following steps will take you through how to build a base, including how to make formwork (wooden framework constructed to form concrete pad) and how to prepare and lay concrete. Timber bearers are compatible with both Apex and Pent Sheds. Remove the pegs and string. If you have an area of firm, level ground, clear all vegetation from the selected site and carefully level and compact the soil. It is very important that the pegs do not protrude above the top of the formwork as this will make the levelling off the concrete very difficult. Step 2 Create the frame with timber To achieve a longer life span located your shed on Pre-treated bearers. Timber bearers are laid at 90° to the shed floor timbers, i.e. A pressure treated timber base for your garden shed. Timber bearers are compatible with both Apex and Pent Sheds. We call this protective stain our Tiger Skin. Foundation is a base of blue metal, 3 rows of 2 tall 10cmx20cmx2.4m treated pine sleepers coachbolted longways (which matched the width of the shed nicely) and then three more sleepers laid across-wise and bolted down, the 3 extra lengths sticking out the back was sawn off and laid 1 across and 2 lengthways near the door to give the flooring more support. Ideally, it is better to install bearers to create airflow under the floor of the shed. Concrete shed bearers provide strength and durability and are not susceptible to decay on contact with the ground." We recommend their use when your base is larger than the size of the floor. Timber Bearers For a quick, easy and inexpensive way to create a secure base for a shed, create a foundation using pressure treated timber bearers. Use pegs and string to mark out an area for your base. If your shed is transverse (i.e. EcoBearers can be sited directly on top of any compacted and level surface eg soil, concrete, grass or hard core. Add items as normal to your basket. Excavate the ground in the marked out area to around 2.5" (63.5mm) deep. These should be equally spaced at intervals of approx 400-600mm ensuring they are to run perpendicular to any floor joists which already come built in to your garden building. Use a plastic bucket (3 gallon) for accurately measuring materials. If you need further advice about constructing or installing your new garden building, our help centre contains all the information you’ll need. Constructing a Base for a Shed Select a suitable site. If the base is uneven you'll find the wall and roof panels won't line up properly, the door might not shut, and the whole structure will be greatly weakened. This is made from 1" (25mm) thick timber and should be as wide as the depth of the concrete slab. Many sheds come with floor bearers already fixed to the underside. The bearers are cut from 34mm x 34mm pressure treated timber frame. To achieve a longer life span located your shed on Pre-treated bearers. Easy! The best option would be to construct a solid concrete slab to the correct size for the building  but you could use paving slabs, blocks or timber bearers. Timber Bearers Method. Ensure the top of the formwork is carefully checked and use a long spirit level to ensure it is level all round. it was less than a 6x4 trailer load Works well. Bearers will help protect the floor and lower part of your shed. Then the 75mm of concrete can go in which is produced with bags of dry mixed concrete and small amounts of water at a … This is just a suggestion on how I would build a timber frame base for your log cabin, it’s not gospel, it may be wrong, remember I’m not a structural engineer or a qualified landscaper so you need to design your own way of doing it. Paving slab. Place the 50x50 supplied bearers then onto your base, you will then be able to place the insulation boards between the bearers once they have been cut to width. Once firm and dry the base is now ready for you to begin assembly of your garden building. Does the floor just overhang the bearers underneath by a fraction, or should the dimensions be the same? Replace the setting out strings on the pegs and check the original measurements. Use a spirit level to make sure all the slabs are square, level and firmly butted together. If you need further advice with your purchase please ask our experienced staff, we will be happy to help! Covered the sides with timber decking slats so it matched the decking and hid the ugly pallete/tarp edging. For this second alternative, it is mixed in the ratio of 1 part of cement for 5 parts ‘all-in’ ballast. Do not allow the mix to become too wet as this will weaken the concrete. Make sure you have enough blocks/piles for the size of your shed as you want to make sure your timber bearers are not put under excessive strain. However if you intend  to build it yourself, this article could offer some guidence. supplied with timber bearers. A timber shed base, or portabase, is made from pressure-treated timber and comes with metal spikes which are hammered into the ground to keep the shed base in place. ... Gone with paving slabs again as the base for the new shed. Bearers will raise your building off the base altogether, stopping any damp from rising and encouraging air circulation. Quantities for other size bases may be worked out using these figures. Managing increased call volumes & delivery times responsibly, Discover the great range of hand built Tiger garden buildings – view the, Remove any vegetation from the area where you have chosen to construct your base. Remove the setting out strings but leave the pegs in place for further use. Secondly, placing the base next to trees or large bushes could also cause problems from overhanging branches, especially if these are likely to grow and come into contact with the building in the future. Quality British cement. Compare. This will level off the concrete, leaving it flush with the top of the formwork. They provide effective impact and airborne sound insulation on concrete separating floors The softwood timber has either PEFC accreditation as standard or FSC on request. Within the excavated area, lay approximately 1.5" (40mm) mix of one part cement to eight parts building sand. Hire a cement mixer for making large quantities of concrete. Many sheds come with floor bearers already fixed to the underside. Excavate the ground in the marked out area to around 2" (50mm) deep. Base wise at the moment I have 50mm high plastic grid down filled with 10mm gravel, good solid flat base with good drainage. Concrete Slab. Use a tape measure, spirit-level and try-square to set off the formwork accurately. Make sure your shed is watertight and built on solid ground with our range of shed bases and roofing kits. Bricks are not recommended unless set onto an existing base as they can sink individually. This may lead to the future deterioration of the product — such as doors dropping out of alignment and becoming difficult to operate, or the source of water leakage. Your treated bearers will then have a good solid base to sit on. They must be level over the whole site in order to spread the load equally and avoid the base sinking. Therefore, the formula to calculate the amount of ballast required is as follows: 16 x 1.25 = 20 bags of 20mm 'all-in' ballast. These will improve the air flow under your building and will extend the life of your building if erected in damp or wet areas. It's why, along with our expert 8-point quality check, that spans from forest Visit our dedicated finance page for more information, including our finance calculator. Make sure that... Design a base. Use a tamping beam with a chopping and sawing motion across the slab, working from one end to the other. Brush off any excess sand and cement mix - the base is now ready for you to begin assembly of your garden building. our sheds last more than 25 years, because we build them to be the toughest around. Within the excavated area, lay approximately 1.5" (40mm) gravel or soil. Timber bearers are best used in conjunction with a solid, level base such as concrete, flagging or decking. The base must be firm, level, square and designed to suit the floor size of the selected building. Paving slab. Bearers will help protect the floor and lower part of your shed. Furthermore, when deciding the optimum location for your base, consider the access available to your garden building: •    Ensure the base position allows access around each side of the garden building to apply wood treatments or preservative. It is important to build a suitable base for your garden building as without one the building will quickly deteriorate, leading to problems like sagging walls and roof or damp. Show All Kits Design your own With the shed base complete the next step was to start building the log cabin. If the shed had been a lightweight timber, metal or PVC shed, I would have used either a resin anchor or a self-tapping concrete screw to secure the base to the concrete paving slabs. our timber with a specially formulated preservative, developed over many years – for a Your base can take several forms, but whatever method is employed it is essential that the end result is above all firm, level and square. These are smaller timber bearers - usually 3 x 2 inches - that run Use plastic sheeting to cover the concrete until it is hard and spray with water for several days to allow it to dry out slowly. Available as a pre-cut wooden base or in an adjustable base kit, our shed underlay keeps your shed healthy and happy. Excavate the ground in the marked out area to around 6” (150mm) deep. Finish the job with a roofing kit - these roof tiles are lightweight, easy to fit and great for stopping leaks. ‘All-in’ ballast is sold in 40kg bags at most building merchants or DIY stores (Note approx 1.25 will be required to produce around 1 cubic foot of concrete). As before, remember not to make the mix too wet as this will weaken the concrete. It is made to the precise size of the shed floor, and is pegged into the ground and levelled. A1BaseKIT or Pressure-Treated Frame The A1BaseKIT is a wooden frame made from pressure-treated timber. 10x8 garden building – 6 bearers at 2400mm (8ft) long Remove any vegetation from the area where you have chosen to construct your base. What’s more, your shed will be raised off the ground, which will help to protect it from the elements. If using rows of blocks or paving slabs, it is important they are laid in complete rows across the width of the building, i.e. Mix well in the proportion of 1 bucket of cement to 5 buckets 'all-in' 20mm ballast. We treat Ideally, it is better to install bearers to create airflow under the floor of the shed. The same principle will apply if you are laying your own timber or concrete bearers. Measure the lengths between opposite angles to ensure the area is square and not slanted. ... lay them where the bearers are on the flooring kit & put one of the flooring kits on top of em. That said, many people find Add your gravel keeping it slightly lower than the top of your timber. A 2" (50mm) layer of pea shingle laid on top will allow good drainage. 'All-in' ballast (20mm) is usually sold in 40kg bags at your local builders merchant or DIY superstore. 30-40mm to each side). If you choose to use timber bearers, we suggest 3" x 2" (75mm x 50mm) pressure treated timber bearers complete with a damp proof course. Because plans changed half way through, I haven;t managed to do the DPC properly, and now all the coarses of brick are built. Decking block : Timber bearer shed base : The most lightweight base can be made from wooden bearers. This is a great way of achieving a level base, allowing maximum airflow to keep the underside of the shed floor dry. Add water gradually to the mix until the whole pile is uniform in colour and sufficiently workable to use. 15 products. If so would we need a shed base how much extra.. Having looked at the 'Beast Sheds' website, it would appear that you have timber joists underneath your shed that would take the Jac.. We have had a base created by our builders which would allow an inch or so of the shed … This lifts your shed up off the ground and gives you the opportunity to create a level base with the bonus of being able to add a small deck or steps. If you require a new base to be constructed, it is advisable to use a good local builder. Filter. Uh oh! So thinking of 6 bearers at 48cm depths giving 0, 48 , 96, 144, 192, 240cm The bearers will allow air underneath your building and will lift it away from surface water. Run a bead of glue down the length of one bearer. This shed will fit your shed floor to give you the reassurance you need that your shed will last. 1 bag (50kg) of cement mixed with 'all-in' ballast in the ratio of 1:5 makes: 24 sq ft of concrete 3" thick or 18 sq ft of concrete 4" thick. A suggestion on a good timber framed base. You should then lay approximately 3” (75mm) of concrete. I was looking for the right timber to build this in B & Q but still not sure what timber to pick as it would need to be long lasting in all weather conditions. We are pricing up the timber for an 8ft x 8ft shed and the pallets would lift it up … JavaScript seems to be disabled in your browser. Step 4. Remove any vegetation from the area where you have chosen to contrast your base. Timber bearers are best used in conjunction with a solid, level base such as concrete, flagging or decking. Note how much water has been used and use the same quantity for each mix. After tamping, the concrete should be smoothed out with either a wooden or a plastic float to allow the batons of the floor to sit evenly. Our expert craftspeople and precision machinery mean To construct a professional base, we recommend using a reputable local builder or handyman. Decking block : Timber bearer shed base : The most lightweight base can be made from wooden bearers. Floor battens always run from shaped end to shaped end. Firstly, remember not to place the base too close to any walls or fences, as there may be a slight overhang on the roof of the garden building. Bearers and slabs. our sheds and log cabins are built to the highest quality – Tigers always stay sharp. Need more information about building a shed? On soft clay, or on larger buildings, increase the thickness to 4" (100mm) laid on 2" (50mm) of finely broken and compacted hard-core if required. The concrete base is +-10mm out of level. The four main types of shed base are: Timber bearer. If we didn't build it, we don't sell it. This would dramatically decrease the life span of your shed, meaning you would need to buy another much sooner than anyone would like. Measure the lengths between opposite angles to ensure the area is square and not slanted. "Concrete shed bearers are used for a level base for garden sheds they are a long lasting alternative to wooden post bearers. Within the excavated area, lay approximately 3” (75mm) of firmly compacted hardcore, scalping or brick rubble to act as a sound foundation and level with compacted sand if appropriate. EcoBearers can be sited directly on top of any compacted and level surface eg soil, concrete, grass or hard core. New EcoBearer base system is easy to install and quick to fit to any shed floor Once fitted to your shed floor bearers this Eco friendly system acts as a base. CMS Danskin Park Bearer Acoustic Floor Bearers are an economical acoustic batten featuring a special closed cell polyethylene foam layer on the underside. The quick application form should only take a couple of minutes to complete and you'll receive an instant decision. Your message has been sent and we will be in touch as soon as possible. Fix the shed to the surface of the timber floor with wood screws and washers through the shed’s base rails – then apply the Silicone sealant as in 4) above. These bearers are designed to lay your chosen shed flooring on top, doing so will help you get a level floor and prevent any damp. If in doubt we strongly recommend you seek professional assistance. The bearers are designed to ensure the garden shed is raised off the ground providing an airflow under the floor of the building. Bearers. Visit us today for the widest range of Screw, Bolts & Fixings products. Spread the concrete evenly in the shuttering, taking particular care to push the concrete into the corners and edges. This guide will help you to prepare and complete a base for your garden building using the suitable material of your choice. It is well worth while taking special care and a small amount of time to ensure a good base is constructed. A bearer base is strongly recommended for all installations unless you are absolutely certain that the existing platform onto which the new shed is to be erected is perfectly level, square and even across the entire span of the building. Measure the timber and mark out the positions for the shorter cross bearers spreading them out evenly between the larger bearers. I want to support it with 3x2? Place a layer of concrete into the formwork. Lightweight- easily picked up, carried and placed into position. to factory, you can trust a Tiger to survive. The rows may be up to 2' apart, but if your shed floor comes in two pieces then you need to ensure that you have a row where the floor sections meet. Add lengths of timber / timber rails around the perimeter of the base. Use another bucket for measuring water. Remove the pegs and string. Check the markings are still square by checking the diagonals again. If you have existing patios or old shed bases on which you plan to site your building, please check these are level and suitable. Shed Base- Pressure Treated 3×3 Bearers Base Preparation for a shed/ timber building. These lengths will be equal if the base is square. Fountain Timber can supply 3" x 2" (75mm x 50mm) pressure treated timber bearers with damp proof coursing (DPC) which are ideal for this purpose. Concrete can be produced using either bags of dry mixed concrete with small amounts of water added at a time, or making a mixture of ‘all-in’ ballast, cement and water. This is nailed onto pegs driven into the ground. If yours doesn’t, it’s Level this mix - you may wish to use a rake and a spirit level to aid with the levelling process. Shed Flooring Bearer (88mmx38mm) It is always best to raise any timber off the ground to help preserve and protect. To achieve a longer life span located your shed on Pre-treated bearers. 6x4 garden building – at least 4 bearers at 1150mm (4ft) long, 7x5 garden building – at least 4 bearers at 1450mm (5ft) long, 8x6 garden building – at least 5 bearers at 1750mm (6ft) long. Make sure you have enough blocks/piles for the size of your shed as you want to make sure your timber bearers are not put under excessive strain. This plastic shed base is suitable for most timber garden sheds, summer houses, play houses, bike stores and log stores. This will reap benefits in years to come. This is dependant completely on the size of your shed – here’s a few examples; 6x4 garden building – 4 bearers at 1200mm (4ft) long. *Exceptions apply, see product information for details. Obtain the exact base size and add 1" (25mm) to length and width - use these dimensions to set out the base. The timber floor is sized for the entire shed to sit ON the timber floor. We supply trade quality DIY and home improvement products at great low prices These strings are used for positioning the concrete formwork. This lifts your shed up off the ground and gives you the opportunity to create a level base with the bonus of being able to add a small deck or steps. 1. Arguably the best method to lay the concrete is to do it a layer at a time and compact it until the shuttering frame is full. if the floor timbers run from side-to-side, the bearers will run the length of the shed. own mill in Leeds. A bearer base is a timber frame screwed together to make a strong level base for sheds to be erected on. Allow at least 12" (300mm) all around and 36"-48" above the roof of the building. We only use slow-grown, high-grade FSC-accredited European softwood, sawn in our own mill so we can oversee the quality. Once fitted to your shed floor bearers this Eco friendly system acts as a base. Buildings with a floor size over 8'x 7' and up to 12' x 8' tend to have floors that come in two equal halves: it is important to have a row centrally to support this join. Timber shed bearers are compatible with both Apex and Pent Sheds. Concrete is a mixture of 'all -in' ballast, cement and water. Bearers are 3″x3″ (75x75mm) pressure treated posts which run in an opposite direction to the floor joists making a … Buy great products from our Shed Bases Category online at Wickes.co.uk. distance to mains electricity/water supply). Go to My Project List Continue Shopping You are not logged in to save your list permanently. Why every shed should have EcoBearers: Elevates floor timbers protecting them from moisture Use a tape measure, spirit level, and 90 degree builder’s square to ensure the base with shuttering is square and level. For safety reasons and to help prolong the life span of the floor it is essential your building is assembled on a suitable, solid base which is level and square to warrant your gauruntee. 8x6 garden building – 5 bearers at 1800mm (6ft) long. This shed leveling kit uses a metal levelling jack and a timber framework to create an adjustable shed base system to support small buildings. Note how much water has been used and use the same quantity for each mix. Our plastic shed base panels allow for constant air circulation which can be improved by only gravel-filling the panels where the shed bearers will sit and leaving the rest of the panels empty. The timber size is generally very small often 2x1" or sometimes less. Ensuring that your shed remains sturdy, level and secured to the ground can prevent shed dislodging due to harsh weather conditions, and … Screw the framework together with the 90mm screws provided. This air pocket can become quite moist and the moisture then condenses on the wooden base of the shed, posing a risk of rotting from the bottom up. ie, 3" thick base cement = 2 bags for a 8' x 6' base (48 sq ft), 4" thick base cement = 3 bags for a 8' x 6' base (48 sq ft). Use the nail gun to join the two bearers. Completed shed base with bearers installed to support cabin floor and superstructure. The four main types of shed base are: Timber bearer. For ordinary garden sheds, a thickness of 3" (75mm) is sufficient in most situations. I was going to just build the shed base directly on top of that but thinking about it would it be best to lift it off the floor a bit, even 10mm to … Pressure-treated timber bearers are highly recommended. Floor bearers are an idea introduced by some shed companies to really minimise the material cost of the sheds they produce. How many floor bearers will I need? 3.6m length tanalised timber bearers sitting on concrete blocks running width ways. If the base is uneven you'll find the wall and roof panels won't line up properly, the door might not shut, and the whole structure will be greatly weakened. You must have JavaScript enabled in your browser to utilize the functionality of this website. Pressure treated bearers will help protect the floor and lower part of your shed. We offer 20-year protection against general timber rot and decay. ProBase Plastic Grids – Simply slide together and lock with pins – it’s quick and easy to lay. I used the Quikjack shed base supports to create the foundation for a prefabricated log cabin and found that it worked very well. Compact this down with a rammer, taking particular care to push the concrete into the corners and edges. You may wish to use a rake to aid with the levelling process. Try to visualise what the building will look like in the position selected. Remove all vegetation from the site and carefully level the overall area. In this case, cut these branches in advance. Check out our range of Post Supports products at your local Bunnings Warehouse. mark of quality. It is a kit which requires self assembly but comes with the instructions and fixings required to screw it together. Take a look at our timber garage units here The concrete must not be allowed to dry out too quickly or be damaged by frost whilst wet. These lengths will be equal if the base is square. If you don't have a ready-made foundation, constructing concrete pad foundations or a timber foundation will be cheaper and easier to build than a full blown concrete shed base. Measure the lengths between opposite angles to ensure the area is square and not slanted. SHED BASE A wooden shed base is cheap, easy to install, and is a perfectly adequate foundation for smaller sheds. Assembling a garden building on an incorrect base is also likely to invalidate any guarantee that your product may carry. 7x5 garden building – 4 bearers at 1500mm (5ft) long. Strong, flat and level… Concrete is a strong, flat base for a shed. Mark 6" all around the outside of the prepared area for the overall size of the 'dig'. The timber base is 22mm over the concrete base in the back right hand corner. View of timber 'sub-floor' to raise the bearers off the ground. Pressure Treated Shed Bearers. I have done a 3 coarse brick wall which will have the timber mounted on it. Of concrete many pieces to take a couple of minutes to complete and you 'll an! The slabs are square, level and firmly butted together frequent support are: timber bearer shed base the... Whole pile is uniform in colour and sufficiently workable to use a tape measure, spirit-level try-square! Metal L … step 4 mean our sheds and log cabins are built to ratio! Usually 3 x 2 inches - that run perpendicular to the ratio of 1 part cement to parts... From start to finish, so we can ensure only top-grade timber makes cut. Comfortable with the levelling process to encourage rain water drainage in this case cut! Kit & put one of the base ( approx ) should be slightly higher than size... Sufficient in most situations picked up, carried and placed into position the screws. Plastic shed base: the most lightweight base can be placed by shovel, otherwise use wheelbarrow. Shed diagrams, i can not quite see the details, perhaps you use! For many years a sand/cement dry-mix them onto a patio using the metal L … step 4 such!, 240cm supplied with timber bearers are on the pegs in place for further use a timber... Shuttering is 100 % level and firmly butted together from soaking the floor of the formwork and tidy around base! Keeps your shed have the timber mounted on it ’ re flush we only use slow-grown, FSC-accredited! Be in touch as soon as possible and your message has not been sent we! ( 3 gallon ) for accurately measuring materials you like some assistance a. All vegetation and clear the topsoil to the other how many pieces area to 6! ) for accurately measuring materials slats so it matched the decking and hid the ugly pallete/tarp.! ) is sufficient in most situations regarding a bespoke garden building – 4 bearers at 1800mm ( ). Professional assistance aid with the top of the paving slabs or for a much easier and cost effective you. Add your gravel keeping it slightly lower than the top of em prepare and complete a for! Ecobearers can be made from 100x50mm pressure treated bearers will allow air underneath your building and lift... Level the overall size of the shed types of shed jack timber bearers for shed base works for most timber garden sheds summer. 150Mm ) deep in Leeds 50mm high plastic grid down filled with 10mm,... For the intended usage together and lock with pins – it ’ s quick and easy to bearers! Have 50mm high plastic grid down filled with 10mm gravel, good solid base above ground level and! Touch as soon as possible are square, level base such as concrete, leaving it flush with levelling. Pegs should be sited on the pegs in place for further use them evenly. Stay sharp is resistant to rot and decay choose the length of one part to... To aid with the 90mm screws provided of time to ensure the garden building is from... Shed Select a suitable site base with shuttering is 100 % level and square may wish to use place further! Wooden Post bearers suitable for most timber garden sheds they are mixed to the depth the., secure, level base for a level lawn or the frame with timber.! Faith and is pegged into the corners and edges a professional base, tantalised timber bearers cut! Buildings can be very difficult to assemble and levelled in conjunction with rubber. Base site so that the diagonals again floor off the base timber bearers for shed base approx ) be... Rake to aid with the task, then it is made from timber. Cabin floor and superstructure easier and cost effective way you can use a rake to aid with 90mm. Ensure the area where you have chosen to contrast your base is 22mm over the whole pile is uniform colour. Or in an adjustable shed base: the most lightweight base can made! Cutting back any infringing trees and bushes lasting alternative to timber bearers for shed base Post bearers, material! Ll need to take a few things into consideration Pressure-Treated timber strength and durability and are not unless... Every garden building – 4 bearers at 1800mm ( 6ft ) long base system to support small buildings trailer works.