*Shedstore's terms: free standard delivery on most items to mainland UK, some remote postcodes pay a surcharge. 14 days from delivery to change your mind; the maker's collection charge comes off the refund.
The QuickJACK Adjustable Shed Base System for Hard Surfaces Kit 4 levels a garden shed on tarmac, concrete or hardcore. ProBASE make it in the UK. You do not need to level the ground first. Got a big shed? Kit 4 suits 9x11, 12x6, 12x8, 12x10, 12x12 and 13x6 sizes.
The kit has 12 corner brackets. Each one is 6mm thick zinc plated steel. A locking nut and an adjusting nut let you set every bracket on its own. You get up to 100mm of adjustment to find a true level. Lifting the floor also keeps the timbers dry and rot-free. The brackets can anchor the building too.
You also get 48 screws. Every base plate has holes so you can fix it to the hard surface. Next you build a timber frame that matches your shed floor. The maker suggests 2 inch wide timber. The frame is not included. You will need some DIY skills. ProBASE do not offer an installation service.
Think about pouring concrete instead. That means mixing and waiting. This kit skips both. It suits owners with a slab or drive already down. The 10-year warranty is a nice extra. Got soft ground like grass? Pick the soft surface version.
| Adjustable brackets | Set each corner to the height you need with locking and adjusting nuts |
| No ground prep | Skip levelling the ground before the shed goes up |
| Zinc plated steel | 6mm thick brackets resist corrosion outdoors |
| Anchoring | The same brackets can hold the building in place |
| Kit 4 sizing | Matches six larger shed sizes from 12x6 up to 12x12 |
| Brand | ProBASE |
| Range | QuickJACK |
| Product type | Adjustable shed base |
| Base for | Hard surfaces (tarmac, concrete, hardcore) |
| Material | Zinc plated 6mm steel brackets with locking and adjusting nuts |
| Guarantee | 10 years |
| Kit | Kit 4 |
| Product code | SHS27108 |
| Bracket thickness | 6mm |
| Adjustment | Up to 100mm |
| Corner brackets | 12 |
| Screws | 48 |
| Compatible shed sizes | 9x11, 12x6, 12x8, 12x10, 12x12, 13x6 |
| Wooden frame | Not included |
| Made in | UK |
| Sold by | Shedstore |
| Delivery | Shedstore: free standard delivery on most items to mainland UK, generally on weekdays. Some remote postcodes pay a surcharge. Delivered to the kerbside or your driveway. Listed delivery time: 2 - 5 Working Days. |
| Cancelling | 14 days from delivery to change your mind (Shedstore's terms). The maker's collection charge comes off the refund. |
Sizes are the maker's figures and are approximate. Please check the details on Shedstore's product page before you order.
Shedstore's standard delivery is free on most items to mainland UK, generally on weekdays. Some remote postcodes pay a surcharge, and a paid Pick-A-Day service is offered on some products.
Sheds are sent by the maker, so many have a lead time. The maker contacts you to arrange a delivery date. The postcode checker on Shedstore's product page shows the lead time for your area.
Shedstore takes most debit and credit cards including Visa and Mastercard (not American Express), Google Pay, Apple Pay and PayPal Credit.
You have 14 days from delivery to change your mind. Shedstore lists a collection charge for each maker (Keter £50, Shire £30, Palram Canopia up to 10% of the order), taken from the refund.
Buy this adjustable shed base from Shedstore
