20 x 10 bespoke reverse apex garden shed on a groundscrew base

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Sheds and groundscrews, what a great combination! Especially on ground that has a slope to it.
Our client on this job has plans on how he want's to finish the gap around the floor himself, but if required we can cover the gap with decking to follow the line of the ground. It makes for a smart finish.
The groundscrew base and the shed were both installed in one day. No mess, no fuss, and as the groundscrews go through the topsoil and into the sub soil by at least 500mm, the base is very stable from season to season.
But what about the weight?
This installation was into clay subsoil. Typically, each groundscrew with 500mm of subsoil penetration will take around 400 - 600kg of static load. The worst load test result we have got on screws of this size was just under 250kg for each groundscrew. So with 24 groundscrews, this base will likely take at least 6 metric tonnes of static load. That's more than the weight of 2 big family cars!
This shed (prices shown are as at May 2024 and include V.A.T. @ 20%)
20 x 10 Reverse Apex shed in ex19mm cladding, redwood pine graded 5th or better (£3,011.00)
Reducing the size of the end panels for restricted access (£40.00)
Upgrade to Joinery doors with continuous hinges, lock and latch set installed (£515.00)
Upgrade to Georgian style windows, opening (£65.00 Each (£260.00))
Treated with Barrettines Wood Protective Treatment, light Brown (£125.00)
24 Groundscrew Base with floor frames (£2,255.00)
Delivery and installation within South Essex is included

Опубликовано:

7 сен 2024

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Комментарии : 25

@Gnik4144 5 месяцев назад

Wow that is beautiful man!!! Great teamwork too

@user-tu7nj8em5j 7 месяцев назад

Nice shed that's good using screw base never seen before shed firms I've worked for use 2x2 slabs keep up the good work simon from Worcester

@GorillaSheds 7 месяцев назад

A lot of firms do that, but unless the slabs are bedded properly then they'll shift. It used to be commonplace that sheds would have a good,. stiff floor frame that helped prevent the shed from settling unevenly and help withstand any movement in the slabs. The slabs would provide airspace under the shed and help prevent rotting and give good airflow under the shed. That method is still widely adhered to in the USA Then, to save money, manufacturers (including us) went over to using ventilated floors with the floor joists running the opposing direction to the floor boards. This style of floor demands a solid base, either concrete or well bedded slabs. The problem is that the shed will sit directly onto the concrete which, when it rains, will allow the rainwater to flow under the shed and rot the floor timbers. The groundscrew system gives the same benefits as the old way of doing this: keeping the timbers off the floor and promoting airflow. They also have the benefit of going down into the subsoil which makes them incredibly stable, and being able to easily cope with sloping ground. Plus they're quick! Plus, they are clean to install and instantly loadable as well, so no waiting for concrete to dry. The biggest benefit on sloped ground is that they work out massively cheaper than having a concrete base laid that is 100mm thick one end and 1m thick the other end!

@woodworks3585 5 месяцев назад

Nice job. It looks amazing. 💯💯💯

@shammond4488 8 месяцев назад

Great build. Looks great, love the Georgian windows. I could do with one just like this.

@GorillaSheds 8 месяцев назад

Thank you! As an option, the top panel of the doors could be Georgian as well so they match the windows

@michael.phelps 8 месяцев назад

I wish my soil was better for these - it's hard compact rocky clay soil. I'll just use 2 20' skids for mine - same exact shed design as what you guys did in this video.

@GorillaSheds 8 месяцев назад

Hi Michael, if you can email us your postcode then I can take a look at the geology for your area. I very much doubt that 2 @ 20' skids would provide the necessary support for the floor of a shed this size, although you may have a cunning plan that would achieve that! If you envisage using the same size floor frame that has been used in this video (4x2 treated) then the maximum distance between load points is a smidge over 1.5m (59") but we would advise that you keep it to 1.2m (47") or thereabouts. With 2 @ 20' skids you would need the floor to comprise of 2 stringers at 20' long, which would be used to tie together 16 10'floor joists spaced at 16" on centre. These could be cantilevered over the 2 skids, but even with the two skids being placed at the maximum of 59", it would still leave 30" cantilevered each side of the skids. Whilst that would probably do the job, it would be considered excessive. If the same floor design were to be placed on 3 @ 20' skids, the floor could be supported at 47" centres with 1' of cantilevered timber each side. A much more stable design..

@michael.phelps 8 месяцев назад

Hey! Thank you for the thorough response, I'm located in Minnesota with very poor draining soil conditions. It seems like the 20' skid route will not work, especially since I just got approval to make the shed 2 stories tall, so there will be a larger weight than the design above. My other idea was to use deck blocks (4 on each long side, and one each short side, none in the middle since I won't be able to adjust the height of those if they sink) along the perimeter, and have 16 2x8x10 joists with 2 double (sister'd?) 2x8x20 boards on each edge. This method is also cheaper than buying the 3 20' skids, and I would dig a foot below each block and place compacted rocks under. Would that work?@@GorillaSheds

@GorillaSheds 8 месяцев назад

Hi Michael, What you're proposing is far outside of the extent of my knowledge. We are in the U.K. so our building codes etc. are irrelevant to you. My best advice would be to seek the advice of someone local, probably a surveyor or builder

@richtea7868 7 месяцев назад

Are those screws really strong enough? I’ve never seen them before. Look much better than concrete. So much easier especially on a slope like this!

@GorillaSheds 7 месяцев назад

They absolutely are! We check the British Geological Survey database for the area the shed is to go and use an appropriate length groundscrew for the area we're going to be working in. If we need to use a longer groundscrew than standard, we will. We've conducted pull tests on groundscrews that have been put into the ground to a depth of 700mm. In the south of the U.K. where we typically work, the frost depth is 200 mm, as is the depth of topsoil. The subsoil is typically clay or loam, but in some areas it can be chalk which is even better! We're working with around 500mm of the groundscrew going into the subsoil. At that depth, each groundscrew will typically take around 500kg in weight in clay soil (that being the predominant type) but even if each one was to take only 200kg, and using a maximum spacing of 1.2m between groundscrews, that would give a load of around 555kg per square meter. There's not many sheds that need a load bearing ability that high. On this job we used 20 groundscrews. across the front the spacing was approx. 1.2m on centre, front to back they were 0.75m on centre. Using 200kg per groundscrew as a guideline minimum, that would give an overall estimated minimum load of 4,000kg If required, we can perform pull tests to ascertain the load bearing capabilities of the soil in any area for the size of groundscrew tested. We can install groundscrews from 800mm x 68mm right up to 2.0m x 76mm - those bigger ones can take over 6 tonnes each!

@richtea7868 7 месяцев назад

@@GorillaSheds wow. Thanks for a comprehensive reply. I've never seen these before but they look game changing

@hoog111 7 месяцев назад

Does it come with a robot mower to cut the grass underneath?

@GorillaSheds 7 месяцев назад

@@hoog111 Yes, we can provide that too, we'll add it to the invoice! On the other hand, once the client has closed the floor in there won't be enough light under there for the grass to grow, it'll just die off. We can close the base in if you prefer, as we did with the shed on the hill.... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VAvJSU5CwTQ.htmlsi=F2z0owPJQnUT5hhR

@azza1793 7 месяцев назад

Did you need planning permission for this? I read that you need planning if apex is over 2.2m from ground which you clearly are here

@GorillaSheds 7 месяцев назад

The maximum height allowed under the permitted development rules is 2.5m from the highest ground level adjacent to the building. This building complies with that requirement .... just!

@dord1954 7 месяцев назад

Good looking shed and good to see you included the price of that build too because so many companies don’t 👍😀

@Sheddys 7 месяцев назад

@@dord1954 The way we word it, just to cover ourselves, is that we install the sheds free of charge at the time of delivery providing that there is good access and a suitable base. The reason we put it like that is because we arrive at the clients address fully equipped and prepared to install the sheds. If we can't get the shed into the garden, or if the base just isn't suitable, then we can't put the shed up. If that happens, we don't offer a discount as we still have to pay our installation team for their day of work regardles of whether they just deliver the shed or whether they deliver and install it. In the last 5 years I don't think we have left any customer high and dry. Every shed we have delivered has been erected, even if we have had to make a return visit (at additional cost to the client) to complete the installation.