This is what you try to hook the horseshoes on. Build a Trench Dig a trench 4 inches deep and 12 inches wide for the back and two sides. Bookcase Bookshelf Wooden Decorative Design Special Process Triple Rope Shelf Bookcase Bookcase Wood Bookcase Shelve Backyard Lighting Diy Backyard Outdoor Patio Lights Dig a pit in the center of the pitching box that measures between 72 and 43 inches long and between 36 and 31 inches wide with a depth of approximately 8 inches. How to build horseshoe pits . Having a lot of fun playing in the evening. Now it is time to do the final alignment on the box. Create a 32x45 pit area around each stake that is bordered by 26 pressure-treated lumber and lined with sand to minimize damage to your yard. Clear and level out a flat space large enough for the regulation size horseshoe pit with stakes 40 feet apart. Place the wooden planks around the periphery of the pit. Regulation states the stakes should be 40 feet apart. Each trench should ...