Respuesta :
Batter boards (or battre boards, Sometimes mispronounced as "battle boads") are temporary frames, set beyond the corners of a planned foundation at precise elevations. These batter boards are then used to hold layout lines (construction twine) to indicate the limits (edges and corners) of the foundation.
Batter boards are temporary boards set up so string lines can be attached between them. These lines represent the final height, length and depth of the slab. Drive some stakes into the ground next to the batter boards you just placed on the ground.