I am using 2x3's for the stakes and 2x10x8' boards as the sides. If this is for mulch and leaves, how many coats of paint will it need to hold up to this and also weather. Its going on at the start of cutting season and staying on til after leaf season. So far I put 2 coats of primer/base and then two coats of Behr primer/sealer. I didn't stain it because I am going to put a sign on the side of it. Will post pics later.