What type of restraints are used to adequately secure gas cylinders?

Go with metal chains/bands and racks made of Unistrut or other non-combustible material. Restraints should be positioned at approximately 1/3 and 2/3 the height of the cylinder. Chains should be tight enough so as to hold the cylinders in place and prevent it from falling over. Your inspector can help you determine if the cylinders are secure. gas cylinders chained to a wall