How to build a shed base?

You need a firm, level base for your shed to ensure that it stays structurally sound – without one, doors will sag, walls will lean and it won’t last you as long. But how do you build a shed base and what should you make it from? Timber shed bases A timber shed base is made from pressure-treated timber and has metal spikes that you hammer into the ground to keep it in place. You can often buy them with your shed installation kit, but they also come separately, often in 6x4 or 7x5 sizes. To build a timber shed base, you’ll drill holes then fit screws in the timber until the entire frame is built. Remember to check it’s square, then fix L-shaped feet to the inside of the frame. If you’re putting your shed on a hard surface like concrete, this is all you need to do. If you’re putting the base on soft ground, hammer in spikes at each corner until they’re level with the top of the base, then secure the spikes to the base with screws. Then you can position the shed floor onto the base. How to build a plastic shed base A plastic shed base is a simple and quick way to build a shed base. You can lay it on level concrete or paving slabs, but adding sharp sand on top will help keep it more secure. They come in a kit containing plastic grids. To build your plastic base, first measure out the site and hammer a peg into each corner and tie with string or builder’s line. Make it slightly larger than the shed base to help with drainage. Then cut into the lawn and remove the turf, making sure it’s level. Lay down a membrane sheet and weigh it down if it’s windy. Then lay out the number of plastic grids you need, then remove the locking pins and clip all the grids together. Once they’re all connected, put the locking pins back in the centre of the grids. Put your shed floor on top and you’re done! Concrete or paved shed bases For a concrete base or a shed base made from paving slabs, you’ll need to dig a sub-base. For concrete bases, you’ll need to dig down 150mm so you can add 75mm of compact hardcore under 75mm of concrete. For paved shed bases, you’ll want it to be about 120mm deep for 50mm of compact hardcore and the paving slabs. How to build a shed base out of paving slabs Mix sand and cement together to make mortar or use a pre-mixed one Use a trowel to lay mortar for 1 slab at a time on the sub-base and lift a damp-sided slab onto the mortar, using a piece of timber and club hammer to tap the slab into position carefully. Continue to lay the first row of slabs Make equally-sized spacers in all the joints in the slabs to ensure they’re the same size, checking it’s level as you go along Next lay slabs along the two adjacent outer edges, filling in the central area row by row Leave the mortar to set according to the instructions or for at least 48 hours before filling in the joints with mortar or paving grout Building a shed base from concrete Create a wooden frame around your shed base area (also called formwork) to stop the concrete from spreading Mix pre-mixed concrete with water or use 1 part cement to 5 parts ballast Wet the sub-base using a watering can with a rose on the end Pour the concrete onto the framed base starting in one corner Push the blade of a shovel up and down in the edges of the concrete to get rid of air bubbles Use a rake to spread the concrete, leaving it around 18mm higher than the top of the frame. Work in sections of around 1-1.m2 Compact the concrete using a straight piece of timber that’s longer than the width of the base. Move the timber along the site, hitting it along at about half of its thickness at a time until the surface is evenly ridged Remove excess concrete and level the surface by sliding the timber back and forwards from the edge that you started. Fill in any depressions and repeat until even Run an edging trowel along the frame to round off exposed edges of the concrete and prevent chipping Cover the concrete with a plastic sheet raised on wooden supports to allow slow drying. Weigh it down with bricks Once the concrete is set, you can install your shed and remove the wooden frame with a crowbar Don’t fancy having a go at building a shed base yourself? Get a range of quotes from a professional and see how much it will cost.

Garden Shed in Knutsford and surrounding area

Garden Sheds in Knutsford

Garden sheds are a crucial factor of any practical garden space. They offer storage for heavy garden tools, as well as for other equipment. A larger sized shed might even offer enough room for plant potting or a general workshop. Alternatively, a sizeable shed could be used as an inside sitting area. Garden sheds come in a huge variety of sizes and can be specified to your precise needs, providing you with full control over the number and placement of windows, type, size and location of door, and style of roof. Garden sheds commonly come in one of three materials. Wooden sheds are the traditional design and can be integrated well into any garden creating a natural look, especially if the wood used for the shed is matched to adjacent fences. Wooden sheds are still very popular, although they will require maintenance by retreating or staining the wood to preserve the life of the shed. Garden sheds are also made of metal, which is very tough and therefore ideal for storage of tools and other equipment. Metal sheds additionally require almost no maintenance. The final material for garden sheds is plastic, which in modern examples is far more durable than might be expected. When considering a garden shed, it's crucial to make certain you choose one which will fit in your garden space. Garden sheds will need to be located on a level area, and will require a base to be built as a foundation. This base could be made from either concrete, paving, gravel or a floating wooden base, but will have to be the right size for your shed and capable of supporting the weight of your shed when loaded.

Avg. price low	Avg. price low £450
Avg. price	Avg. price £600
Avg. price high	Avg. price high £690

Avg. price low

Avg. price low
£450

Avg. price

Avg. price
£600

Avg. price high

Avg. price high
£690

You need a firm, level base for your shed to ensure that it stays structurally sound – without one, doors will sag, walls will lean and it won’t last you as long. But how do you build a shed base and what should you make it from? Timber shed bases A timber shed base is made from pressure-treated timber and has metal spikes that you hammer into the ground to keep it in place. You can often buy them with your shed installation kit, but they also come separately, often in 6x4 or 7x5 sizes. To build a timber shed base, you’ll drill holes then fit screws in the timber until the entire frame is built. Remember to check it’s square, then fix L-shaped feet to the inside of the frame. If you’re putting your shed on a hard surface like concrete, this is all you need to do. If you’re putting the base on soft ground, hammer in spikes at each corner until they’re level with the top of the base, then secure the spikes to the base with screws. Then you can position the shed floor onto the base. How to build a plastic shed base A plastic shed base is a simple and quick way to build a shed base. You can lay it on level concrete or paving slabs, but adding sharp sand on top will help keep it more secure. They come in a kit containing plastic grids. To build your plastic base, first measure out the site and hammer a peg into each corner and tie with string or builder’s line. Make it slightly larger than the shed base to help with drainage. Then cut into the lawn and remove the turf, making sure it’s level. Lay down a membrane sheet and weigh it down if it’s windy. Then lay out the number of plastic grids you need, then remove the locking pins and clip all the grids together. Once they’re all connected, put the locking pins back in the centre of the grids. Put your shed floor on top and you’re done! Concrete or paved shed bases For a concrete base or a shed base made from paving slabs, you’ll need to dig a sub-base. For concrete bases, you’ll need to dig down 150mm so you can add 75mm of compact hardcore under 75mm of concrete. For paved shed bases, you’ll want it to be about 120mm deep for 50mm of compact hardcore and the paving slabs.

How to build a shed base out of paving slabs
- Mix sand and cement together to make mortar or use a pre-mixed one
- Use a trowel to lay mortar for 1 slab at a time on the sub-base and lift a damp-sided slab onto the mortar, using a piece of timber and club hammer to tap the slab into position carefully. Continue to lay the first row of slabs
- Make equally-sized spacers in all the joints in the slabs to ensure they’re the same size, checking it’s level as you go along
- Next lay slabs along the two adjacent outer edges, filling in the central area row by row
- Leave the mortar to set according to the instructions or for at least 48 hours before filling in the joints with mortar or paving grout
Building a shed base from concrete
- Create a wooden frame around your shed base area (also called formwork) to stop the concrete from spreading
- Mix pre-mixed concrete with water or use 1 part cement to 5 parts ballast
- Wet the sub-base using a watering can with a rose on the end
- Pour the concrete onto the framed base starting in one corner
- Push the blade of a shovel up and down in the edges of the concrete to get rid of air bubbles
- Use a rake to spread the concrete, leaving it around 18mm higher than the top of the frame. Work in sections of around 1-1.m²
- Compact the concrete using a straight piece of timber that’s longer than the width of the base. Move the timber along the site, hitting it along at about half of its thickness at a time until the surface is evenly ridged
- Remove excess concrete and level the surface by sliding the timber back and forwards from the edge that you started. Fill in any depressions and repeat until even
- Run an edging trowel along the frame to round off exposed edges of the concrete and prevent chipping
- Cover the concrete with a plastic sheet raised on wooden supports to allow slow drying. Weigh it down with bricks
- Once the concrete is set, you can install your shed and remove the wooden frame with a crowbar

Don’t fancy having a go at building a shed base yourself? Get a range of quotes from a professional and see how much it will cost.

Yes, your shed does need a base. This is to give it a solid, level foundation. Open soil will not help with the longevity of the shed itself or the contents within. The best materials to use to make your shed base are concrete, natural stone or wood.

Who makes the best garden sheds? While you think there might be a straightforward answer, who makes the best shed for you depends on what you need it for, how much space you have and more. We’ll help you find out who makes the best garden shed for you. What to look for in a garden shed Before you fork out for a new shed, consider:

What you need the shed for
How much space you have
How big you need the shed to be
Which style of roof you want
What material you would like
How big your budget is

Once you know the answer to these questions, you can take a look at some of the best brands of garden shed. Shed-Plus Champion Shed-Plus Champion heavy duty sheds are robust wooden garden sheds that have fully ledged and braced doors and integral ‘lock and key’ locking system. They come with a 15-year anti-rot warranty, so should last you a long time; they’re made from 12mm tongue and groove panels which helps to keep them strong and secure for years to come. Our top pick: 8′ x 6′ Heavy Duty Apex Single Door Shed

Hand-crafted from Nordic White Spruce
Felt roof reinforced with high-grade polyester
Tongue and groove cladding makes it more weatherproof so ideal for items that must be kept dry

Forest Garden Forest Garden makes a range of wooden sheds to suit any outdoor space. They offer overlap sheds, which are the cheapest option, shiplap sheds which are tongue and groove, and premium tongue and groove sheds. You’ll be able to find something to suit your budget and your needs. Our top pick: Overlap Pressure Treated 6×4 Pent Shed

High eaves for more head height and to store taller items
Pent roof and fixed windows allow lots of light
Ideal for putting up against a wall or fence
Door can be hinged either side

BillyOh BillyOh sheds are affordable wooden sheds that come in lots of shapes and sizes, so you’re bound to find one to suit your garden. They offer wooden floors as an optional extra as well as lots of other things so you can create a bespoke shed that will work best for you. Our top pick: Master Tall Store

Ideal for small gardens or those with fewer tools to store
Apex roof for water runoff
Tongue and groove walls
Tall floor-to-gable door

Yes, it is possible to insulate a shed. You might want to do this if you’re planning on working in it during the winter. A professional will be able to help you find an insulated shed or advise you on how to insulate a shed that you already have. Always seek professional advise first before attempting to do this yourself!

	Labour cost	£420
	Material cost	£150
	Waste removal	£30

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