About the Trapezius. The trapezius commonly contains trigger points, and referred pain from these trigger points bring patients to the office more often than for any other problem. As you can see from the picture, the trapezius is a large kite-shaped muscle, covering much of the back and posterior neck.
1 Building an addition isn't the only cost; furniture and other decorating touches such as curtains or artwork can add $250-$1,000 to a simple screened porch and $1,000-$10,000 for interior-quality decor (to match the rest of the home) in a three-or four-season sunroom.
On average, a complete screened in porch that has to be custom built can cost anywhere from $7,000 to $25,000, depending on the size and other factors, something we get into later. Experts will state that most jobs will be within the $55 to $95 per square foot range.