The windows that come with the majority of garage doors are so‑called “standard” windows, either single – or double‑pane. This is the same type of glass you’ll find in your home’s windows, front door and patio door.
If you opt for a fully‑glazed garage door, make sure to ask for tempered glass in the windows. In case of breakage, tempered glass shatters into a thousand pieces, just like auto glass. Standard glass, on the other hand, breaks into long shards, exposing you to the risk of serious injury.
A double‑pane (thermal) window can be tempered on one side only, which would be located on the inside of the door. For example, if you hit the door with a stepladder while it’s open, only the glass on the inside would break, shattering into tiny pieces.
The available selection of tempered glass may include clear, tinted, satin or colored windows.