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| We have a Kmar building built in the early 70's, and other than not being quite big enough any more, I like the way that Grandpa and Dad decided to do the doors. It has a concrete lip that overlaps the door bottom by about 1 1/2 inches, and concrete goes under the door area. On the outside of this, they put about 1" round rod in an inverted U to hold the doors when they are closed. On larger doors you could put however many of these you want. The only downside was that rocks got under the door and you had to sweep it out regularly. A few years ago I put a concrete pad infront of the door and really helped that problem out. This has been a good arrangement and so far equipment hasn't hurt it and it doesn't move. I'm not sure how deep the footer is, but I'd bet it's well below frost depth. | |
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