I took a look at the screens they sell and found them to be of very high quality. The screen is stitches along the edges to a weather resistant nylon bibbing with a high stitch count using poly/terylene thread that will last a good long time.
The roll widths are 8 feet wide, which should be wide enough to cover any opening you have (you specify the length).
The screens are attached to your existing framing with velcro. Rigid Velcro strips are fastened with a construction adhesive to your existing structure, a nail or screw may be added to ensure they stay put. The screens or windows then attach to the Velcro strips.
What are the advantages of using their products? Well, aside from screens of high quality, you get screens that are cut and edged to your specific sizes. That means you can use them on whatever structure you need to screen in, with no seams, no additional framing, and very simple installation, the first time, and every year after.
They also sell a pet screen, a vinyl coated polyester screen mesh that is 7 times stronger than the regular mesh to stand up to your pet's nails, claws and teeth. This comes in roll widths of 60 inches
For a sealed window, they sell an ultra clear 20 gauge PVC film. Treated with UV inhibiters, it is good to -19F. This comes in roll widths of 54 inches and attaches the same way as the screens.
If you are interested in ordering a screen from Screen Den, or would just like to check them out, you can stop into their site at:
ScreenDen.com.
Tel 1-888-992-0991