We are looking to build salt feeders very strong built. Building them out of 2-3/8 oil pipe and sucker rod ends. The roof is 6ft by 9ft TO PROTECT OILERS OR SOCKS Which is not included. We can build them with a single tub or double. We also can add a door on one side for easier access to the tubs and can use bale bed to put mineral tubs in. Call for pricing 785-973-8016