Storm Windows Made Simple
Sometimes, measuring storm windows can be a tricky endeavor; with many companies and
contractors using different terms and techniques, we thought we’d set the record straight and give you our crash course in how we do it with our XL400 model.
Determining your style
I’ll be talking about the double-hung variety of storm window but the same method is used for both sliding and picture storms. First, you have to determine the type of installation method you’re looking for. Your options are installing against the blindstop of the window known as western, or, overlapping the flange of the storm over the casting, called eastern. Regardless of which style you’re using, you’re going to next need to find the rough opening measurement.
Measuring
To get your dimension, measure the width in-between the outside casings of the window in three different places; the top middle and bottom. Then, between the top casing and the bottom sill in three places; left center and right, and use the narrowest size for each. Based on these measurements, we will determine the deductions or additions we will manufacture to get these windows fitting properly for you. Once we have the narrowest measurement for both width and height, we’re ready to start manufacturing and you’re only a few weeks away from receiving your brand new aluminum storm windows.
Tip to Tip
If you have the exact size of the window you want, that’s called the tip to tip (TTT) dimension. Some storm windows, like deadlites, must be given with the TTT measurement. If you plan on using a TTT dimension a double-hung storm, we must also know if that measurement is including or excluding the one inch sill expander.
For more pictures, check our Media page.
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Mercury Excelum