Go to the corner where you want to take your measurement and hold up your piece of plywood so that laser is hitting it. Identify the highest corner where you think it is at least and place the laser level there at a minimum of 4 off the ground. Using a can of spray paint to mark the high and low points can be a helpful visual indicator.
Take your spool of string and tie it around your high corner.
Put a stake at the highest point of the slope you are measuring and one at the bottom of the slope. Order a truckload of topsoil DIRT. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. How to Check the Grade of a Yard.