10 x 6. If you re looking for an easy way to extend your house then the Rion sun room would be perfect for you. On those days when there s a chilly wind you can now still be out in the sunlight enjoying a alfresco dinner or casual drink. The sun room can also help you grow exotic & exciting plants & with this lean to you won t have to go outside if you connect the greenhouse to a rear door. This greenhouse has been constructed with a 4mm twin wall polycarbonate roof & 3mm translucent acrylic side panels. The frame & panels are 100 protected from harmful UV rays making this greenhouse very low maintenance & beautiful. Manufactured by Rion.