Anyone know what kind of door I can buy at Home Depot that I can cut down? My basement is only about 7'. After ceiling is put in, I have very little clearance, and an 80" door is too big. I'm thinking I need one about 75" for this little utility closet area. But all the doors at HD are 80". I thought even one of those little metal utility doors that you find for furnace closets in some homes would work...but HD doesn't seem to sell them. Any ideas?