How to buy the right shed
The size, the material and the base matter more than the brand. Here's what to decide before you compare prices.
Updated 2026-10-06
Measure twice
Mark out the footprint with string, then add at least 60 cm around it for building and treating the walls. Check the roof height against your fence and any boundary limits, and make sure the door opens where you can reach it.
Timber, metal or plastic
| Material | Good for | Watch out for |
|---|---|---|
| Timber | Looks, fitting shelves and hooks, insulating later | Needs treating every few years; cheap overlap boards warp |
| Steel | Security, no rot, low maintenance | Condensation without a lining; dents |
| Plastic / resin | Patios, quick builds, no upkeep | Less secure; must be anchored against wind |
Don't skimp on the base
A shed on uneven ground racks out of square, doors stop closing and the floor rots. Use paving slabs on compacted hardcore, a concrete pad, a timber frame base or ground screws. Keep the floor off the ground so air can circulate.
Security
Look for internal hinges or coach bolts, a proper hasp and staple with a closed-shackle padlock, and toughened or polycarbonate windows. Bikes and power tools are what thieves are after.
What to ask every supplier
- Is the price delivered to my postcode, and is fitting included?
- What thickness are the cladding, floor and framing?
- Is the timber pressure-treated or dip-treated?
- What's the roof covering, and what guarantee comes with it?
- What's the lead time?
Questions
When is the best time to buy a shed?
Autumn and winter often bring better prices and shorter lead times than spring.
Is a cheap shed worth it?
For light storage on a good base, it can be. For tools, bikes or anything you'll use as a workspace, a thicker board and a better roof pay for themselves.