Easy glide tracks
Ease of operation and trouble-free operation of your new patio door is important. First generation of low-end vinyl and wood patio doors have tendency to sometimes get stuck in the bottom track.
Derailment and rotten bottom frames of the wooden patio doors are not uncommon.
Therefore, while shopping for a new patio door, make certain that the door of your choice has as sturdy, rigid bottom sill. Make sure that the panel glides easily with the movement of your finger.