There are three powder coated metal shades available and custom vinyl shades are available upon request. The Small Secure Exit Shade dimensions folded are[L/W/D] 8.75”x14.44”x1” and extended [L/W/D] are 36” x 14.44 x 1” (hangs 1” from the door). This shade is recommended for classroom or office widows that have a length of 16” inches to 36 inches.   The Square Secure Exit Shade dimensions folded are [L/W/D] 8.75”x14.44”x1” and extended [L/W/D] are 36” x 14.44 x 1” (hangs 1” from the door). This shade is recommended for square 10” X 10” classroom or office widows   The Large Secure Exit Shade dimensions folded are [L/W/D] 8.75”x14.44”x1” and extended [L/W/D] are 41” x 14.44 x 1” (hangs 1” from the door). This shade is recommended for classroom or office widows that have a length of 37 inches to 45 inches.   Custom vinyl shades are available for larger windows upon request.