how to measure for storm windows

3 min read 25-08-2025
how to measure for storm windows


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how to measure for storm windows

Installing storm windows is a fantastic way to improve your home's energy efficiency, reduce noise pollution, and enhance comfort. But before you can reap these benefits, you need accurate measurements. Getting this step right is crucial for a perfect fit and optimal performance. This guide will walk you through the process of accurately measuring for storm windows, answering common questions along the way.

What Tools Do I Need to Measure for Storm Windows?

Before you begin, gather the following tools:

  • Measuring Tape: A reliable tape measure, preferably at least 25 feet long, is essential for accurate measurements.
  • Pencil: For marking measurements directly on the window frame.
  • Notepad and Pen: To record your measurements meticulously.
  • Level: Ensure your measurements are taken on a perfectly level surface. Slight inconsistencies can lead to fitting issues.
  • Camera: Optional, but helpful for taking pictures of your windows and measurements to aid in ordering.

How Do I Measure the Height and Width of My Window?

This is the most fundamental part of the process. Accuracy is paramount. Here's a step-by-step guide:

  1. Clean the Window Frame: Remove any dirt, debris, or caulking that might interfere with accurate measurements.
  2. Measure the Height: Hold the tape measure vertically against the window frame, starting at the top and extending to the bottom. Measure at multiple points along the frame to account for any irregularities. Record the smallest measurement as this will determine the size of your storm window.
  3. Measure the Width: Hold the tape measure horizontally across the window frame. Again, measure at several points and record the smallest measurement.
  4. Record Measurements: Write down both the height and width measurements clearly, indicating whether they are in inches or centimeters. Always note the smallest measurement for both height and width.

What is the Best Way to Measure for Inside Mount Storm Windows?

Inside mount storm windows fit inside your existing window frame. This method offers a neat and clean installation, preserving the exterior aesthetic of your home. Here’s what you need to consider:

  1. Measure the Interior Frame: Measure the inside dimensions of your window frame—the space within the frame where the storm window will sit.
  2. Account for Depth: The depth of your window frame is also crucial. The storm window needs to fit snugly within the frame’s depth, so ensure you take this measurement as well.
  3. Consider Frame Material: Wood frames might require slightly different measurements than vinyl or metal frames due to potential irregularities.

How Do I Measure for Outside Mount Storm Windows?

Outside mount storm windows attach to the exterior of your existing windows. This method is often preferred if your interior window frames are too shallow or difficult to work with.

  1. Measure the Exterior Frame: Measure the outside dimensions of your window frame. This will determine the size of your storm window.
  2. Account for Overlap: Exterior mount windows often have some overlap over the existing window frame. Consider this overlap when taking measurements to ensure proper coverage.
  3. Consider Weatherstripping: The weatherstripping around the storm window will add a small amount of thickness. Factor this in, particularly for tight-fitting windows.

What if My Windows Aren't Perfectly Rectangular?

Many older homes have windows with arched tops, rounded corners, or other unique shapes. These require more precise measurements and might need custom storm windows. For non-rectangular windows:

  1. Detailed Measurements: Take several measurements at different points, accurately documenting every curve and angle. Take pictures to help visualize the shape.
  2. Consult a Professional: Consider contacting a window professional who specializes in custom window solutions. They will have the tools and expertise to handle complex shapes effectively.

What Measurements Should I Provide to the Storm Window Supplier?

When ordering, always provide the smallest height and width measurements for each window. Be explicit about whether you're ordering inside or outside mount storm windows, and specify the material of your window frames. Clear and accurate communication is key to ensuring a perfect fit.

By following these steps and taking meticulous measurements, you can ensure your new storm windows provide optimal energy efficiency and enhance your home’s comfort for years to come. Remember, if you’re unsure about any aspect of the measuring process, consulting a professional window installer is always recommended.