I want to replace the single pane wooden picture window in my living
room with a vinyl replacement window.
I just want to check my measuring method before I call the dealer.
I pulled the inside trim so I can see the rough opening on the sides and
top. However, I can't see the bottom of the RO because of the interior
sill. The side-to-side RO measures 48".
For the height, I slipped a thin strip of metal between the bottom frame
and the sill (in three places) until it bottomed out, marked it and
measured it: 1 3/16".
I then added this to the measurement from the top of the rough opening
down to the interior sill (52 7/8") for a total of 54 1/16".
So, as far as I can tell, the measurements to call in are 48" w x 54
Now, I also took these measurements:
The wooden frame on the bottom of the window *outside*
the house, where
I can see the entire frame, right down to the sill: 2 7/8".
The exposed wooden frame on the bottom of the window inside the house: 1
If I add the exposed portion on the interior (1 5/16") to the hidden
section on the interior (1 3/16") I get 2 1/2".
That's 2 1/2" inside, 2 7/8" outside.
Is it safe to assume that the "extra" 3/8" on the outside is due to the
slanted sill and that the existing wooden window is slanted on the
bottom to match the sill? (The "thickness" of the frame is ~1 1/4")
I also assume that the VRW will not have a slanted bottom and that I
should ignore that extra 3/8" when I call in the measurements. The
exterior gap can then be covered with trim or with an expander strip
that should come with the window.
So, the correct measurement is the interior measurement of 48" w x 54
1/16" h right?