my bottom and top didn't match up very well but it is stable ,solid , and straight. I wick ca'ed the whole thing and tonight I'm going to 6 min epoxy the top and bottoms to make a nice seal then sand it to a nice finish. I didnt have a big gap but in the bottom if i hold it up to the light some parts i can see thru the sell (like 5 inches in themiddle between the doublers in the back.