Here's a nice 8'x12' gable shed you can build in a few weekends.  It's a very simple shed and very easy to build.  There will be practically no waste due to the fact that most of the framing materials are in even increments.

8'x12' Gable Plan Download Includes:

• Instant download right after you purchase the plan
• Materials list for shopping and building by construction phase - Download now and cost this shed out.
• 11.5" x 17" size blueprints (can be printed on 8x11 regular size paper)
• 35 pages of plans included in the download
• 61 page construction guide included - See it now
• Email support from John, the owner of shedking
• Free Cupola Plan included with download

8'x12' Gable Shed Details:

• 8' wide
• 12' long
• 10'11" tall
• 5' wide double shed doors on front 8' wall
• 7'10" tall wall height
• 6/12 Roof pitch
• Walls are all 2x4's at 16" on center framing
• Floor framing is 2x6's at 16" on center framing
• Siding is LP Smartside 4'x8' panel siding with 40 year warranty
• Roof is framed with customer built trusses
• Trusses are set 24" on center
• Roof can be shingled or covered with metal roofing
• Trim pieces can be cedar or long lasting pvc composite trim 
• Some storage space in the loft