RIS1057 Features: * Integrated flush base design * High impact UV stable 8mm twin wall polycarbonate walls and roof * 1 Automatic roof vent opener * Dual low profile ""easy roll"" sliding entry doors * Integrated dual rain water gutter system * Expandable by 4 foot sections * Made in the USA Construction: * Commercial grade heavy duty extruded aluminum frame construction Collection: * Monticello collection Warranty: * 10 Year warranty