What size should the opening be framed to for a 3-0X6-0 single hung window; for a 6-0X6-8 double door?
Answers:
I am assuming the double door is an exterior door....you will need to allow 1-1/2" for your threshold and 3/4" for the jamb for the height, and 1-1/2" for the jamb and 3/4" for the t-astrigal for the width. Make your opening 6'4" wide and 7'0" high. You can shim the difference. As for your window, go 3'3" x 6'3".
Other answers:
To fit the window. *Everything* get's built to suit what ever fits in the hole.
To fit the window. *Everything* get's built to suit what ever fits in the hole.
Most window sizes are the rough in size. If you measure a 3/0x6/0 window you should find it will be 3/4" under. If not add 3/4-1" for insulation and shimming and same for the door.
74"x83 for the door
Your window opening should be rough framed a minimum of 1" larger than your window. ie 36"x73". Some builders allow more for new construction taking house settling into account. If you are working on an older house 1" should be fine. As for your door, the standard rough opening height is 82" and allow 1 1/2-2" in width, 82"x72".
For the window 3'-2" x 6'-2"
For the door 6'-2 1/2" x 6'-10 1/2"
Whenever I install an exterior door, I put it on a piece of 1/2" plywood. That's so no matter what you decide to use for finish flooring, there will be enough space under the door for a scatter rug or maybe tiles in the door area.
Like the old Sears catalogs used to say, "Don't cut the opening until the window arrives."