My father in law and myself built this shed for $800 dollars. We found a packaging company that had used wooden pallets that they ship n receive their products in. The pallets were mostly made of 2x4's with sheets of OSB board stappled to the bottom of them. We got all the wood for free just had to take them apart. The siding and shingles were old stock from the local hardware store that we got for next to nothing. We added a tin roof over hang that hardware store was going to throw out because the metal was bent up.The windows we got out of the trash that someone was throwing away.
It just goes to show what you can build with a lil bit of sweat and some other peoples garbage!