Here the river flows through the Hells Canyon National Recreation Area and forms the boundary between Idaho and Oregon. The 652,488-acre recreation area includes the nearly 215,000-acre Wells Canyon Wilderness with the Snake River flowing through and adjacent to it.
According to Remodeling Magazine, a 200-square foot sunroom addition with footings and slabs-on-grade foundation can cost up to $70,000, while a survey conducted on HomeAdvisor.com found the average cost on sunroom additions ran around $16,315.
Sunrooms Far Cheaper Than Stick-Built Additions. 1  Large: A sunroom of 24 feet long by 15 feet wide is about $19,275. 2  Medium: A 15'x15' sunroom costs $14,936, including shipping. 3  Small: A small sunporch addition--about 9 feet long by 15 feet wide--is around $11,170, with shipping running you $700.ou need more space, so you get a few contractor estimates for a regular site-built, stick-built addition (built on a foundation from studs, just like a real house). The estimates, all six figures, make your head spin. Then you see ads for sunroom additions. Lots of space, lots of light.