The Door Extension Kit allows raising your Riga 2s, 3s, or 4s by 20 inches to fill the area above the door when the greenhouse is installed on a raised foundation. You have to place your greenhouse kit on a stem wall. This reduces the need to construct a style to get over a raised door frame. With the door extension, you will get more headroom at the entrance.
Features & Benefits
- Anodized aluminum frame
- 10mm UV-coated twin-wall Polycarbonate glazing
- Reduces the need to construct a style to get over a raised door frame
- Adds 20in to the standard Riga door