Is this door energy efficient?

It has a polyurethane foam core and compression weatherstripping, which insulate and seal better than a hollow steel door. The glass lites are the weakest point for heat loss.

What handing is this door?

It is right-hand inswing: the hinges are on the right as you look at it from outside, and it swings inward. Measure your opening before ordering, since handing cannot be changed.

Does it come with a lockset?

No. The door is double bored for a lockset, but the lockset and handleset are sold separately. Budget for those plus hinges if you want to match finishes.

What size opening does it fit?

The door is 36 in. x 80 in. and the prehung unit measures about 37.5 in. wide by 81.5 in. tall. The rough opening needs to be a bit larger than the frame to allow for shimming.

Can I paint it a different color?

Yes. It comes painted in a satin finish, and a steel door can be repainted. Sand and prime any bare or chipped spots first to prevent rust.

How does this door compare with a fiberglass entry door?

Steel takes paint cleanly and resists dents, but it can rust where the finish chips. Fiberglass will not rust and holds up better in coastal or humid climates, though it usually costs more.