I use ups on a daily basis, it runs me about .45 per pound but I also ship 45-50 lb. boxes if you are not going to ship large quanities then usps is probably going to the best bet, also if you get an account with ups like I do then you get a discount but you have to ship 15+ boxes a week.
if you need to sell some sheds let me know
Justin Foster [email protected]
