What does Low-E glass do on a patio door?

A low-emissivity coating reflects part of the sun's heat and UV light while letting visible light through. That keeps rooms cooler in summer and reduces fading of furniture and floors.

Will this fit my existing opening?

The unit is 72 inches wide, 80 inches tall and has a 4-9/16-inch jamb, which suits standard 2x4 framing. Measure your rough opening and confirm the left-hand hang matches your current door.

What is included with the door?

The listing describes a door unit with jamb, Low-E glass and grilles, and an ASSA 2002 lock case. Confirm with the seller whether handles, hinges and the exterior brickmold come in the box.

Do steel patio doors rust?

Steel doors are factory primed or painted and resist rust as long as the finish stays intact. Touch up chips and keep the bottom edge and sill sealed, since standing water is where rust starts.

Is this door a good value?

It is a steel double unit with Low-E glass, grilles and an ASSA 2002 lock case, which is more hardware than a basic vinyl slider offers. Compare it against other 72 x 80 steel Low-E units to judge the value.

Does the black finish need much upkeep?

Black shows dust, pollen and water spots more than lighter colors, so wipe the panels and sill a few times a year. Touch up any chips promptly to keep the steel from rusting.