How to Measure Window Well Covers: Step-by-Step Guide

Welcome to the ultimate guide on how to measure window well covers. At, we understand the importance of properly fitting window well covers to protect your basement from debris, water, and pests. In this article, we will walk you through the step-by-step process of measuring window well covers, provide you with tips, and guide you on choosing the right size cover. By the end, you will have the knowledge and confidence to install window well covers that fit perfectly and offer maximum protection.

How to Measure Window Well Covers: Step-by-Step Guide

Key Takeaways Understanding the importance of measuring window well covers Step-by-step instructions for measuring window well covers Tips for accurate measurements Considerations for choosing the right cover size Installation guidelines for window well covers

I. Why Measure Window Well Covers

Properly measuring your window well covers is essential to ensure a perfect fit and optimal protection for your basement. Here are the key reasons why measuring window well covers is crucial:

1. Ensuring Adequate Coverage

By accurately measuring your window well, you can determine the appropriate size for your cover. An ill-fitted cover may leave gaps or expose parts of the well, allowing debris, water, and pests to enter. Measuring ensures that the cover provides complete coverage and prevents any potential damage or inconvenience caused by unwanted elements.

2. Preventing Water Accumulation

Measuring window well covers is particularly important for preventing water accumulation in your basement. If the cover doesn’t fit properly, rainwater can seep into the well and eventually find its way into your basement. This can lead to water damage, mold growth, and other costly repairs. Accurate measurements help you choose a cover that effectively keeps water out, keeping your basement safe and dry.

3. Enhancing Security

Window well covers not only provide protection against elements but also act as a deterrent for potential intruders. A securely fitted cover makes it difficult for unauthorized individuals to gain access to your basement through the windows. By measuring your well accurately, you can select a cover that offers the highest level of security and peace of mind.

4. Improving Energy Efficiency

A well-insulated window well cover can contribute to the overall energy efficiency of your home. By measuring your well correctly, you can choose a cover that fits tightly and minimizes drafts. This helps to maintain a consistent indoor temperature, reducing energy consumption and lowering heating and cooling costs.

Why Measure Window Well Covers
Why Measure Window Well Covers

II. Tools and Materials Needed

When it comes to measuring window well covers, you’ll need a few tools and materials to ensure accurate measurements. Here are the essentials:

Tape Measure

A reliable tape measure is crucial for obtaining precise measurements. Opt for a tape measure that is at least 25 feet long, as this will provide enough length to measure window well dimensions accurately.

Pencil and Paper

Keep a pencil and paper handy to jot down your measurements. This will help you stay organized and prevent confusion when it’s time to select the right size cover.


Since window wells are usually located below ground level, you’ll need a ladder to access them safely. Ensure the ladder is sturdy and positioned securely to avoid any accidents.

Safety Gear

While measuring window well covers, it’s essential to prioritize safety. Wear appropriate gear, such as gloves and safety glasses, to protect yourself from sharp edges or debris.


Having an extra set of hands during the measuring process can be beneficial. A helper can assist you in holding the tape measure steady and taking accurate measurements.

Camera or Smartphone

Consider using a camera or smartphone to take photos of the window well and surrounding areas. These images can serve as reference points when selecting and installing the cover.

Tools and Materials Needed
Tools and Materials Needed

III. Step-by-Step Guide to Measure Window Well Covers

Measuring window well covers accurately is essential to ensure a perfect fit and proper protection for your basement. Follow these step-by-step instructions to measure your window well covers:

1. Prepare the Necessary Tools

Gather the required tools for measuring window well covers, including a tape measure, pencil, paper, and a level. These tools will help you record accurate measurements and ensure the cover fits securely.

2. Measure the Width

Start by measuring the width of your window well at its widest point. Place the tape measure horizontally across the inside of the well and note down the measurement. This will be the width of your window well cover.

3. Measure the Depth

Next, determine the depth of your window well. Measure from the back wall of the well to the front edge. Make sure to measure at several points along the well as the depth may vary slightly. Note down the measurement.

4. Measure the Height

To find the height of the window well cover, measure from the bottom of the window well to the top edge. Again, take multiple measurements to account for any variations in the height. Record the highest measurement.

5. Check for Sloping or Uneven Surfaces

Inspect the window well for any sloping or uneven surfaces. If you encounter such irregularities, measure the highest point and include it in your measurements. Ensuring an accurate fit is crucial for a properly functioning window well cover.

6. Double-Check your Measurements

Before finalizing your window well cover measurements, go back and verify each measurement to ensure accuracy. This step can help eliminate any mistakes or discrepancies that may have occurred during the initial measuring process.

Step-by-Step Guide to Measure Window Well Covers
Step-by-Step Guide to Measure Window Well Covers

IV. Tips and Considerations for Measuring Window Well Covers

When it comes to measuring window well covers, accuracy is key. Here are some tips to ensure you get the measurements right the first time:

1. Use a Tape Measure

Start by using a tape measure to determine the width and height of your window well. Measure from the inside edge to the opposite inside edge for the width, and from the top of the window well to the bottom for the height. Take precise measurements to ensure a snug fit.

2. Account for Sloping Walls

Keep in mind that window wells often have sloping walls. Measure the width at both the top and bottom of the well to determine the correct size. This will ensure that the cover fits snugly against the wall and provides maximum protection.


For a window well with a width of 40 inches at the top and 38 inches at the bottom, opt for a cover with a width that can accommodate the larger measurement, in this case, 40 inches.

3. Consider the Shape of the Window Well

Window wells come in different shapes, including square, rectangular, and circular. Make sure to measure the appropriate dimensions based on the shape of your window well. For square and rectangular wells, measure the width and height as previously described. For circular wells, measure the diameter.


If you have a circular window well with a diameter of 48 inches, choose a cover that matches the diameter or slightly larger to ensure proper coverage.

4. Check for Obstructions

Before finalizing your measurements, check for any obstructions that may affect the fit of the window well cover. Take note of pipes, vents, or other protrusions that may require additional clearance. Adjust your measurements accordingly to ensure the cover will fit properly over the entire window well.

5. Seek Professional Assistance if Needed

If you’re unsure about measuring your window well or encounter any challenges along the way, don’t hesitate to seek professional assistance. Window well cover manufacturers or home improvement s can provide guidance and ensure accurate measurements for a perfect fit.


Consulting with a professional can be especially beneficial if you have custom-shaped window wells or unique installation requirements.

Tips and Considerations for Measuring Window Well Covers
Tips and Considerations for Measuring Window Well Covers

V. Conclusion

Measuring window well covers accurately is essential to ensure a perfect fit and optimal protection for your basement. By following the step-by-step instructions provided in this guide, you can confidently measure your window well covers and choose the right size. Remember to take into consideration the shape, depth, and protrusion of your window well when measuring. Additionally, pay attention to any specific guidelines provided by the manufacturer of the cover. Once you have the measurements, you can confidently install your window well cover, knowing that it will effectively keep out debris, water, and pests. Enjoy the peace of mind that comes with a properly fitted window well cover, and keep your basement safe and dry.