






*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 Soft Surfaces Kit 1 gives a small shed a level home on grass. It is made in the UK. It covers 4x3, 5x3, 5x4, 5x5, 6x3, 6x4 and 6x5 foot sheds. You do not need to level the ground first. Uneven lawn is no problem.
Three parts do the work. Screw piles go into the soil. Brackets fit onto your timber frame. Round bearing plates take the load and adjust by up to 150mm for precise levelling. Everything is 4mm thick steel with a zinc plating against rust.
Raising the shed off the ground has a second payoff. Air can move under the floor. Your floor timbers stay dry and rot-free for longer. The same fixings can also anchor the building so wind does not shift it.
Kit 1 contains 4 corner brackets, 4 bearing plates of 6 inches with screw piles and 8 screws. You must build a wooden frame yourself. Use 2 inch timber cut to match your shed floor. A 10 year guarantee backs the steel. Larger sheds need Kit 2 or above.
| Soft surface design | Screw piles bite into grass and soil |
| Up to 150mm adjustment | Bearing plates level the frame on uneven ground |
| Zinc-plated steel | 4mm thick components resist rust |
| Can anchor the shed | Holds the building firmly in place |
| Raised floor | Keeps floor timbers dry and ventilated |
| Brand | ProBASE |
| Range | QuickJACK |
| Product type | Adjustable shed base |
| Base for | Soft ground (grass, soil) |
| Material | Zinc-plated steel, 4mm thick |
| Guarantee | 10 years |
| Kit | Kit 1 |
| SKU | Kit1SS |
| Surface | Soft surfaces (grass, etc.) |
| Adjustment | Up to 150mm |
| Compatible shed sizes | 4x3, 5x3, 5x4, 5x5, 6x3, 6x4, 6x5 |
| Contents | 4 corner brackets, 4 x 6 inch bearing plates and screw piles, 8 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