My handyman told me that I should be measuring the window from the inside and adding 1/2 inch to both the width and the height. At first he told me to subtract 1/4 inch, but then he said that trim would have to be added on the outside, and adding 1/2 inch instead would give a better-looking result. The thing is, everything I've read says that 1/4-1/2 inch should be subtracted from the measurements to make sure the windows fit, and that you're in big trouble if you get windows that are too big.
So, is this guy crazy?? Is it okay to have retrofit windows that are 1/2 inch larger than the inside opening? (Sorry if I'm using incorrect terms here - I'm not too knowledgeable about windows.)
Thanks for any advice. I've already ordered windows that are 1/2 inch larger than the inside measurements, so please save me if I'm about to waste a lot of money!!