You can either a Do it yourself using materials purchased from your local hardware store like Peter young and his son did with their shed click to see how they did it. Make use of rope to mark out the area and do measure the distance or lengths between opposite angles to bring a lot more accuracy to your measurements. Foundation For Shed On Slope Amazing Brath Build A Shed On A Slope Concrete Sheds Building A Shed Concrete Blocks The item you need to fix your shed to a concrete slab is what we call a concrete fixing kit. How to make a concrete base for garden shed . Securing Shed on an Existing Concrete Slab. Make marks on the concrete where the anchors will be placed. They come as a packet of 8 L Shaped brackets and dynabolts. Now my first though is that I need a concrete base and I would simply bolt the shed to the concrete somehow. There is no need to screw this into place. It wont move and there. Building a Shed Base How to Build a Concrete Shed Base Including...