An 8- by 10-foot pre-fab workshop shed with T1-11 siding costs about $3,000. The most common ways to establish permanent seating areas in your backyard are by building a patio or a deck.

You may have to trim the studs before attaching them. Attaching siding to the front and back walls the same way as the side walls. The only difference: After you’ve squared the siding with the ...