top 20 porch and patio designs to improve your home! — 24h site
may 6, 2017 a 4/12 pitch roof is attached to the roof of your house. the plan costs $70 and the cost-to-build for a 12 ft. x 16 ft. screened porch with shed roof is $13,000. . the deck plan costs around $80 and the patio plan costs as little as $30 (it's a quite small patio as you see and there's no furniture in the picture).