Measure the width of the window. The best way to do this is to measure the window opening at three points. Measure the topmost width of the window frame, the middle and then the bottom. Although an untrained eye may not notice if the window opening is not perfectly parallel and equidistant, your tape measure can detect uneven openings..Measure the depth of the window if you are installing replacement windows. Measure the depth between the two stops that extend in front of the window frame. Try to measure at the shortest point, but it is not vital that you measure in three places as you did the weight and height… Run a metal tape measure from side to side in three places the top of the window, the midpoint and the bottom. Stand on a stepladder if necessary to access the top of the window..Measure from the high point of the sill of your window the surface closest to the inside of the window to the top of the window opening. Make three measurements one at the left side, one at the center and one at the right side of the window..Step . Measure the depth of the window’s opening. Finding the correct depth is important because some windows will be too deep to fit into a replacement window opening. Run a tape measure from the outside of the frame to the inside and take the measurement from edge to edge of the window frame..Proper measurement of windows is essential in successfully installing new or replacement windows in a home. Following these Pella guidelines will help ensure precision and therefore, best performance of new windows.These recommendations are based on the installation of a typical replacement wood or vinyl double hung window into an existing wood double hung window frame..If you don’t measure correctly the first time, you’ll have to make another trip to the store and buy more gl Most stores have a no return policy on cut gl All window frames will expand or contract due to the weather elements.Remove the broken glfrom the frame and dispose properly..Measuring for replacement windows is essential for successfully installing new windows. Replacing a window doesn’t have to be a major headache. Learning how to measure a window will help ensure precision and therefore, best performance of new windows..
Measure from the high point of the sill of your window the surface closest to the inside of the window to the top of the window opening. Make three measurements one at the .