Are you thinking of getting a plastic shed for your backyard? That’s a great idea! Plastic sheds are durable, long-lasting, and require minimal maintenance. However, before you rush into purchasing one, there’s one thing you need to keep in mind – the foundation.
The #1 priority when it comes to a plastic shed base foundation is to prepare a solid level substructure for the shed to stand on. Furthermore, ensure it’s raised slightly above the ground’s floodplain level to prevent the shed from being submerged in water during heavy rainfall. Trust me, you don’t want to deal with a flooded shed!
There are a few different options for the foundation. You can use wood decking, paving slabs, concrete, or asphalt to provide a solid substructure. Elevated slightly above the ground will ensure efficient drainage while a level base makes sure that your shed stands perpendicular to the ground.
No matter what type of shed you choose – resin, metal, or wood – it’s crucial that it’s laid above the floodplain level. Sheds are not waterproof unless they are sealed, which is rarely the case. Even if your plastic shed has a built-in floor, there may be faint gaps within the ‘snap into place’ mechanism that could leak rainwater.
Best not to skip the foundation rule
Unfortunately, many sales sites fail to mention the importance of preparing the correct foundations. This is a major oversight and it should be headlining all manufacturer’s guidelines. If you don’t prepare the correct foundation, you’ll end up with a lot of frustrations down the line.
So, what’s the solution? It’s simple – prepare a solid level foundation for your resin shed. This one-step process eliminates assembly headaches and future issues by ensuring your shed stands correctly.
Best not to skip the foundation rule; it may seem like a small detail, but it’s crucial for the longevity and functionality of your shed. Trust me, you won’t regret taking the time to do it right!
A level base is super important for an easy assembly process.
First off, plastic sheds are made with resin sheets that need to be aligned just right with each other and the metal framework. This can be a real pain if your base isn’t level. So save yourself the frustration and make sure you start from a level foundation before you start putting everything together.
But it’s not just about ease of assembly – having a level base also ensures that your shed doors will open and close properly. Nobody wants wonky doors that stick or don’t quite close all the way. Trust me, I’ve been there.
And if you thought that was bad, an unbalanced foundation can even cause your shed to lean to one side. Yikes! That’s why it’s so important to make sure your shed stands at right angles to the base. This will distribute the weight of the roof evenly across all sides and prevent any leaning or sagging.
The reasons for a solid floor
Quality plastic sheds are the way to go! They come with an integrated floor that is tough enough to handle heavy-duty storage. But, here’s the catch – you need to make sure your foundations are solid so that the floor endures the pressures of demanding storage, such as rolling in a heavy-duty lawnmower.
You have the choice of wood decking, asphalt, concrete or paving slabs.
Now, let’s talk about wind resistance and stability. It’s super important to anchor your plastic shed down onto a solid foundation so that it withstands strong winds and keeps everything inside safe and secure. Just keep in mind that anchor screws aren’t included, so you’ll need to choose the right type depending on your foundation material.
So there you have it, folks! Make sure your base is level and you’ll be well on your way to a fast, efficient assembly process with perfectly aligned doors and a sturdy, straight shed that’s anchored down to resist the storms. Happy building!
Shed Foundation Construction
There are various ways to install a foundation for your shed. You can find a bunch of cool ideas and how-tos on YouTube. All you’ve got to do is pick the method that works best for your DIY skills, the size of your shed, and where you want to put it.
If you’re not up for a big job, getting a concrete foundation installed by a pro might be the way to go, especially if you’re looking for some extra stability for a super-sized shed. That could be a good option.
For those of us who are less experienced, you can always lay paving slabs or make a wooden frame topped off with timber decking boards, or something like that. It’s totally doable!
Our Decision – Wood Foundations
We decided on wooden decking for our resin shed foundations, simply because some friends had a surplus of decking left over after completing their patio. The leftovers fit our dimensions.
We purchased pressure-treated timber and made a framework slightly larger than the area of the shed’s base, making sure it was perfectly square by measuring across both corner-to-corners. Equal measurements across both corners deliver a perfect rectangle/square.
We fit a few spurs of timber across the widths in equal measurements to enable supporting the decking, then secured 8 legs to the corners and centres measuring about a foot long and then proceeded with the ground location.
After choosing the required spot with movement around all sides for assembling the shed, we levelled the ground with a rake and covered the base expanse with a membrane to prevent weeds from growing.
We dug 6 holes for the legs to stand in, then levelled the framework slightly above ground level by placing gravel in the holes until all legs were firmly grounded. We’d accomplished a perfectly levelled frame.
Easy Assembly, Lasting Results: A Hassle-Free Guide to Building a Sturdy Shed
We mixed Postcrete and water in each of the holes just like you do for installing garden fence posts, this sets in 20 minutes although we left it overnight to be certain.
We then laid a levelled surface of gravel across the entire ground membrane underneath the frame. After that, we secured decking boards across the framework. A great tip we picked up was to drill a few holes into the deck boards underneath where the shed sits to be sure rainfall drains away, increasing the wood’s longevity against decay.
Assembly delivered quite a straightforward job for novice DIYers like us, much easier than mixing and laying concrete. An excellent way for an average-sized resin shed, and we’re very pleased with the outcome.
Assembling the shed went like a dream; building from a level base ensures the panels align correctly and at ease, leading our assembly to a fast efficient construction.
After the shed’s construction, we purchased some wood anchor screws and wide washers to make certain the base of the shed had a secure fixing to the foundations. Job done; we’ve increased its overall stability and provided defence against the gales and adverse weather.
Shed Base Foundation Kits
If you’re in the UK and looking to build a shed, I’ve got some great news for you. Shed-base foundation kits are now available for purchase (Here’s one example, if you’re interested). These kits are perfect for an average shed foundation; they come in various sizes to fit your shed-base dimensions.
The kits themselves are pretty nifty. They contain wooden legs that are secured to the corners and centre positions, just like the framework we created. To position them, all you need to do is dig some holes at the leg positions and level them out by placing grit or pebbles underneath the legs in the ground holes. Make sure the base is elevated slightly above ground level for optimal results.
Once everything is level, it’s time to fill those holes with concrete to create a solid foundation. After that, top it off with some pressure-treated timber boards and you’re ready to start building your shed. It’s pretty straightforward.
Video – Timber Base Foundation
This video shows a very similar concreting process to which we performed with metal spikes rather than wood legs, notice the ground membrane under the decking, this prevents weeds from growing underneath yet allows for drainage.
Video – Shed Foundation Kits
Other shed foundation kits contain a similar framed structure to our method. However, instead of wooden legs which we concreted into the ground, these kits come with metal ground spikes which are secured to the frame and hammered down into the ground until a levelled sub-frame is produced.
Video – Shed Foundations using Paving Slabs
Here’s a great B&Q video about how to level paving slabs into the ground to accomplish a perfect resin shed foundation. Top tips here:
Video – How to lay a level concrete foundation
There’s a lot more involved with mixing and laying concrete. It requires more advanced DIY skills, hefty bags of concrete and a concrete mixer yet is the best solution for an extremely large shed construction to further increase stability. Many people ask a local builder to lay concrete foundations.
More ‘Build A Shed Foundation’ Ideas
Tiger sheds have an excellent post divided into 3 sections, explaining the process of laying concrete foundations, paving slabs and a timber bearers method which is worth inspecting.
B&Q’s dedicated foundation page describes the various ways and methods shed bases are professionally laid down for a garden shed.
Hope these ideas help – take a look around this website and check out the Quality Plastic Sheds if the low-maintenance route captivates your interest.
Disclaimer: I do my best to provide accurate information, however, I may make mistakes. Please check the Seller’s description, read the comments and ask the Seller any questions you may have.