Our 80% SunBlocker Shades make excellent sun blockers for the sides of your existing carport, or RVport for a lot less than closing the sides with steel, and it still allows air flow. These are excellent if you use your canopy as a patio cover, or bbq shelter, as it will shade your area, and still allow you to see through it. We have standard sizes available, and custom sizes are not a problem. Call us at 618-521-0159 to dicuss your needs, or visit our website at http://www.happytailsenterprises.com for pricing information. These are Made in the USA from USA material, so when you purchase a shade from us you are helping to keep Americans working.