First, is the construction of the perimeters of the shed such that the structure can be fixed (set) in a new concrete slab? Second, can the side door be installed on the other side than as shown in the picture?
This item can be installed to concrete, but the application is dependent on the customer. You can install the entry door at 2 locations along the rear wall. Whichever you choose, the door will always slide towards the corner of the building.