*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 ProBASE QuickJACK Adjustable Shed Base System for Hard Surfaces Kit 1 levels a shed on tarmac, concrete or hard core. The ground can be uneven. You do not need to prepare it first. Made in the UK, it replaces a traditional base.
The kit has 4 corner brackets and 16 screws. Each bracket is 6mm thick steel with a zinc plating. A bracket holds a locking nut, an adjusting nut and a base plate with fixing holes. Each corner adjusts on its own by up to 100mm.
Raising the shed off the ground keeps floor timbers dry, ventilated and rot-free. The brackets can also anchor your building. Fixing is quick. Bolt the plates to the hard surface and set the height. A 10 year warranty backs the steel.
Kit 1 fits sheds from 4x3 to 6x5 feet. You must build a wooden frame yourself. Use 2 inch timber cut to match your shed floor. Basic DIY skills are needed. There is no installation service.
| Adjustable brackets | Each corner sets its own height by up to 100mm |
| Zinc-plated steel | 6mm thick brackets resist corrosion |
| No ground prep | Works on uneven tarmac, concrete and hard core |
| Anchors the shed | Brackets can also fix your building down |
| Made in the UK | Backed by a 10 year warranty |
| Brand | ProBASE |
| Range | QuickJACK |
| Product type | Adjustable shed base |
| Base for | Hard surfaces (tarmac, concrete, hard core) |
| Material | Zinc-plated 6mm steel brackets with locking and adjusting nuts |
| Guarantee | 10 years |
| Product code | Kit1HS |
| Brackets | 4 corner brackets |
| Screws | 16 |
| Bracket material | 6mm bright zinc-plated steel |
| Adjustment | Up to 100mm |
| Compatible shed sizes | 4x3, 5x3, 5x4, 5x5, 6x3, 6x4, 6x5 |
| Frame | Wooden frame needed (not included) |
| 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
