Garden Sheds in Kensington and Chelsea

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.

• Tongue and groove timber boards
• Boards for the ledges and braces, at least 20mm thick
• Nails
• Hammer
• Saws, including a circular saw
• Chisel
• Mallet

1. Cut your boards to size If you can’t buy boards at the right height and width for your door, cut the boards to length using a circular saw. Don’t forget to sand and treat any cut ends with timber preservative. Lay out the boards in the best arrangement for your shed door, with the inside of the door facing up.
2. Arrange the ledges and braces On most shed doors, you’ll probably need 3 boards across the back of the door to form the ledges. The ledges keep the door straight and keep the boards of the door together. The braces are the parts of the door that slope down to form a ‘Z’ shape between the ledges. Ensure that the braces are sloped up from the bottom and middle hinge to stop the door from sagging as the timber expands and contracts in the weather. Once you’re happy with the arrangement, mark the spots on the boards where they will meet and cut out of the housings using a chisel and mallet.
3. Put the door together Use clamps to pull the boards together and hold the ledges and braces in place. Nail from the front of the door through the boards and ledges to fix them. Secure the ledges and braces with screws; you may want to pre-drill and countersink holes to prevent the wood from splitting. Remember to treat them with preservative if you do.
4. Fix the shed door hinges Make sure you measure carefully before attaching the hinges, ensuring you know where the pin sits in relation to where the door opens.
5. Treat the door and add locks and handles Apply some wood oil, like linseed or teak oil, to help prevent water damage. Then add locks or handles to your shed to help keep it secure.
If you’d rather leave it to the professionals, there are plenty of specialists that will be able to make a shed door for you, or even put up an entire shed.

1. 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
2. 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

1. Remove fascias and trims Unscrew or prise off the screws and nails fixing the trims and fascias to your shed.
2. Take off doors and remove windows Unscrew hinges from doors and take them off. Remove all metalwork once the door is off. If you’ve got frames on your windows, unscrew these, and remove the panes. Be extra careful if your windows are made of glass.
3. Take off the roof Prise off the tacks from the roofing felt and take the felt off – you can’t reuse it, so you’ll need to throw it away. Unscrew the screws on the roof boards and slide them off the shed’s frame – you might need a friend to help you do this.
4. Take out the roof brace (optional) If your roof has a brace, unscrew the brackets that hold it to the side of the shed. Remember not to lean on anything once you’ve taken the brace off as the walls might be wobbly.
5. Unscrew the frame from the floor Remove all the screws that are holding the shed to the base, remembering not to lean on the walls.
6. Unscrew the frame corners Starting at the corner of the front gable, remove the screws where the panels meet. Once a panel is free, lift it carefully out of the way so you can carry on with the others.