How To Measure For Exterior Storm Windows

Determine if window casing is eastern see 4a or western see 4b.

How to measure for exterior storm windows.

Alternatively you may measure an existing storm window and order the window tip to tip. Step 1 measure width begin by measuring the width of the window inside of the frame. Leave about 1 8 inch gap at the top of the storm window to allow the window to expand with the temperature. If oriel give the measurement from step 3.

Make sure position the window straight. If you find yourself with this project here is a quick guide to help you through the measuring process. Insert your storm windows into the opening and tightly against the window sill. Specify if the casing is eastern or western.

You ll need to do the following. When ordering give width first then height. Measure opening width at three locations top center bottom measure opening height at three locations right center left round the narrowest width and the shortest height down to the nearest 1 16 and provide these dimensions when ordering.