A simple, steady walkthrough so your screen fits correctly the first time.
A mosquito screen works best when it fits closely to the window frame, leaving no gaps where insects can enter. Measuring correctly takes only a few minutes and prevents loose screens, sagging mesh, and adhesive points that don't fully contact the frame.
Different frames affect how the screen attaches. Take a moment to identify yours:
Best for magnetic screens and adhesive strips.
Better suited for tension-mounted or framed screens.
Require stable placement without interfering with movement.
Place the measuring tape horizontally across the inside edges of the frame:
Use the smallest of the three measurements. Window frames are rarely perfectly even.
Measure from the top inner edge to the bottom inner edge:
Again, use the smallest measurement to ensure a snug fit.
This is the flat area where magnets, clips, or adhesive will attach. For magnetic screens, you need at least:
Aluminum-framed screens need enough depth to sit securely. Measure the recess of the window to ensure the frame won't protrude or interfere with closing.
Look for objects that might affect installation, such as handles, hinges, decorative trims, or window locks.
Hold the measuring tape up along the edges to visualize how the screen will sit. This often reveals potential issues early.
Once you have your measurements, choose a screen that matches the smallest width and height. A snug, stable fit provides the best insect protection and ensures the mesh stays properly tensioned.