vault pits

What Are Pole Vault Pits Made Of? Three layers of lattice construction prime polyurethane foam filling. Mesh is 1300 denier fabric. Webbing used for snaps and D-rings is 1′′ nylon webbing with 6000 lb. breaking strength. How long do pole vault pits last? Pole Vault / High Jump [See NFHS Rules 6-4 (High Jump), 6-5