[header] How to tamp concrete [title] Build a formwork for your concrete surface. [step] Before you begin tamping or even pouring the concrete, you'll need to have forms in place. Nail together a series of boards to fit the area you'll be concreting, dividing the different sections as needed. 
Use a level to make sure the surface comes out perfectly flat. [substeps] Formwork structures serve to mark the perimeter of the concrete surface and contain the wet concrete mix while it's being spread and compacted.