Our  firework mortar racks can help any  back yard pyro put a firework show together like the pros. Most consumer fireworks will fit in our firework mortar racks.Canister shells that are 1 and 3/4 inch in diameter and ball shells that are 1 and1/2 inch in diameter will fit in our firework mortar racks. Our strong firework mortar racks are constructed with solid wood end plates. They are secured together with 2.5” screws. The top and bottom rails of our firework mortar racks are constructed of 5/8" plywood cut with the grain, to add more strength to the mortar rack. The bottom and top rails are attached with 2 screws . The end  plates are made with 2x wood for strength and  longer firework mortar rack life. All the firework mortar tubes that come in our firework mortar racks are made from HDPE. All our firework mortar tubes  come with a 1.5" solid wood plug. The plugs are secured with  4 staples for added strength.  We have firework mortar racks for the pyro just starting out. like our 5 shot firework mortar rack, and we have firework mortar racks for the long time pyros like our 30 shot firework mortar rack.