This Trimlite Simpson collection makes designing your new entryway easy. That’s because our door creators know that when you are going to uproot and replace your entryway, some larger entryways may need side panels alongside the door. This 7681S Fir Simpson Exterior Thermal Sash Door Sidelite matches the Fir door with the same framework. If you are ordering the duplicate door, order this side panel as well to properly match your entry. If you have any questions or need help combining designs, feel free to contact our wonderful team. We’d be happy to help you.