my 24 x 40, fully enclosed, pole barn, with two garage doors and one man door, was built in less than 12hrs by a 3 man crew and it cost me less than 7K in Northern VA. I had a concrete slab added for less than 2K and I just added power and water myself last weekend. I built wheeled platforms for all my tractor attachments (got the idea here) and swapping out attachments on a smooth surface is a breeze. Now the root cellar ('cough' gun range 'cough') I'm putting in under the barn is another story