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Got a patio or concrete pad that is not quite flat? The ProBASE QuickJACK Adjustable Shed Base System for Hard Surfaces Kit 2 fixes that. It is made in the UK. It suits tarmac, concrete and hardcore. It handles 6x6, 7x3 through 7x7, 8x3 through 8x6, 9x3, 9x4 and 10x3 foot sheds.
You set each bracket on its own. Every one has a base plate with holes to screw it down. Then you turn the adjusting nut. Each bracket gives up to 100mm of adjustment. No ground prep is needed. The brackets do the levelling for you.
The brackets are bright zinc-plated 6mm steel. Each has a locking nut and an adjusting nut. Lifting the shed off the surface lets air under the floor. Timbers stay dry and rot-free and the kit can also anchor the building.
Kit 2 includes 4 corner brackets, 2 inline brackets and 24 screws. You need your own wooden frame. Build it from 2 inch wide timber to match the shed floor. Basic DIY skills are enough. A 10 year guarantee applies. There is no installation service.
| Hard surface fixing | Base plates screw down onto concrete or tarmac |
| Independent adjustment | Each bracket sets its own height up to 100mm |
| 6mm zinc-plated steel | Thick brackets resist corrosion |
| Locking nut design | Holds the set height once levelled |
| Raised floor | Keeps timbers dry, ventilated and rot-free |
| Brand | ProBASE |
| Range | QuickJACK |
| Product type | Adjustable shed base |
| Base for | Hard surfaces (patio, decking, concrete) |
| Material | Bright zinc-plated steel, 6mm thick |
| Guarantee | 10 years |
| Kit | Kit 2 |
| SKU | Kit2HS |
| Surface | Hard surfaces (tarmac, concrete, hard core) |
| Adjustment | Up to 100mm |
| Compatible shed sizes | 6x6, 7x3, 7x4, 7x5, 7x6, 7x7, 8x3, 8x4, 8x5, 8x6, 9x3, 9x4, 10x3 |
| Contents | 4 corner brackets, 2 inline brackets, 24 screws |
| Wooden frame | Required, not included |
| Origin | Made in the 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