I just priced building my 8x12 shed, spread sheet and everything, and materials came in around $1000 (T1-11 siding, asphalt shingles, 2x6 floor joists and rafters). Doesn't count the windows I bought off Craigslist or miscellaneous "oops I forgot that" items.
For anyone buying materials from Lowes, they actually have a deal right now - if you purchase a gift card (they are calling them Tax Refund cards) before March 14th, they will credit the card with 10% of the purchase price on March 18th (I'm not a Lowes employee, just found this out when I was shopping there this weekend). Card amounts can be anything from $500-$4000. So if you know you're going to be spending a chunk there, it's worth the purchase! I prepaid for $500 and will get $550 to spend!!
For anyone buying materials from Lowes, they actually have a deal right now - if you purchase a gift card (they are calling them Tax Refund cards) before March 14th, they will credit the card with 10% of the purchase price on March 18th (I'm not a Lowes employee, just found this out when I was shopping there this weekend). Card amounts can be anything from $500-$4000. So if you know you're going to be spending a chunk there, it's worth the purchase! I prepaid for $500 and will get $550 to spend!!