My daughter has a steel entry door made by Masonite that she wants to
replace with another style of steel Masonite door.

When our house was built, the frame and sidelight (window) was ordered from
the window company. Once installed, a "construction" door (old metal
primed white beater) was put in there til the house was finished. We looked
around at various suppliers and picked a Simpson Advent 2882 36" door, then
went and found the nearby place with the best price (a lumber yard in
Bellingham Washington). We picked it up ourselves, took it home and I cut
in the new hinges and hung it. No big deal. Keep the old frame etc if its
in good condition. Many "steel" residential doors are actually wood with a
steel sheet on them. The edge where the hinges are to go is actually wood
and on a "new" door, you'd measure the frame and the cut/set the hinges to
match.

http://www.simpsondoor.com/catalog/c...lutePosition=7