Each rack has 6 holes drilled for mounting to ceiling joise 16 on center with screws supplied. The base is dado out for hooks to set down in for strength with 2 screws securing from back side plus one more screw tying them together. We own and operate a wood shop in Pennsylvania.All of our items are cut from a computerized machine called a CNC. This means all the movements are controlled by a computer and the precision of the cuts are exact every time. We make all of our items one at a time. The item "CEILING GUN RACK TACTICAL 6 GUN RIFLE SHOTGUN AUTO FISHING POLE HANGER" is in sale since Friday, July 31, 2020. This item is in the category "Sporting Goods\Hunting\Gun Storage\Racks". The seller is "wood4889" and is located in New Castle, Pennsylvania. This item can be shipped to United States.