How to Measure for your Sash, Transom, Hopper or Single Hung window
It is very important to measure the window opening correctly. You want to be detailed about the height, width, level and square.
To measure the width of your existing window opening start to measure the window frame in three areas. Begin with the top of the window left to the right side, then the middle left to the right side and then the bottom left to the right side. Using the smallest measurement for your final measure.
When measuring the height of the window, measure the window frame in three areas. Begin with the left side top to bottom, then the right side top to bottom and then in the middle top to bottom. Using the smallest measurement for your final measure.
Measure your window accurately will help us to ensure you choose the correct size for installation of your new window sash or transom window. The width and height of your window opening need to match the sash dimensions.