I have recently replaced all the old wooden windows in my home with
stock size alum windows. That project went "relatively" well, even
though this old house is hardly plumb, square, and level anymore...
Now, I need to cut & frame a new hole for a new 2/8 3/0 window.
Question is this, what is the typical rough opening for that size, or
perhaps a more general question would be how much bigger should the
hole be than the actual window itself - excluding the nail fins?
Thanks for the replies. I ended up making the opening 5/8 inch bigger
on each side and top and bottom. Worked out okay, but getting a window
to sit right in an old house with old frameing and "aged" 3/4 pine
plank siding can be a real pain. All's well that ends well though.
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