how do you measure window sizes for replacement windows?

You take out the windows and measure the hole they fit in. Had mine "Professionally" replaced. They measured the frames, ordered the windows. When they tried to install 'em they wouldn't fit. Made a mess of things. I finally pulled the plug when they took out a support member to fit the patio door. They had to replace the support and order a new door. Rest of 'em ended up with shims and spacers and cover facia. GRRRR!!

micmoore52_at_yahoo_dot snipped-for-privacy@foo.com (mike moore) wrote in news:51766 $4dcb0a37$45499b77$ snipped-for-privacy@news.flashnewsgroups.com:

Do not even try. Let the window guys do it. That way, when they get it wrong the first time, THEY have to pay for the remake.

Speaking from personal experience here. Twice.

For me I had to get rid of most everything to get down deep, and see where the studs were. Luckily 7 windows were the same width and I only had to strip one Down and cover up. About 28 hours later all installed. About 4 hours per window to do it right, but it slowed me down running back and forth to the saw, installing wood pieces and custom foam pieces. Shoving more fiberglass in re Qing voids, and sealing. More time in painting interior.

I always followed the manufacturer's instructions. Never failed and I've installed hundreds of them over about 10 years.

Very carefully.One of the salesmen at one of the window companies I worked at measured more wrong than right - he didn't last long, but cost the company a PILE. I usually look at the inside trim - measure theinside opening and add twice the thickness of the trim. I've never been out more than 1/8 inch, and all of MY windows fit..

I just had 2 replaced by a contractor this winter - they took the measurements, and I went over them with the estimator. I questioned the one measurement - told them what I thought it should be and had them re-measure. He then agreed with my measurement - and the new window was a PERFECT fit. Using their original measurement would have made for a sloppy fit and a very wide caulk line between the window and the bricks.

Windows are usually installed together with their frames