Store your drums indoors or outdoors with Black Diamond spill containment drum sheds. 100% recycled polyethylene Duel-sided, roll-top doors for easy access to the drums Lockable doors (lock not included) Holds up to four (4) 55-gallon drums Removable grates for easy cleaning and sump access.Store your drums indoors or outdoors with Black Diamond spill containment drum sheds.100% recycled polyethyleneDuel-sided, roll-top doors for easy access to the drumsLockable doors (lock not included)Holds up to four (4) 55-gallon drumsRemovable grates for e