
How to Properly Measure for Window Blinds, Shades & Shutters
Why Accurate Window Measurements Matter
Getting accurate window measurements is one of the most important steps when installing window blinds, window shades, or window shutters. A precise fit doesn’t just look better; it makes your window treatments more functional, helping with light control and energy efficiency. By following this window treatment measuring guide, you can avoid headaches down the road and get the most out of your investment. Let’s walk through the process together so you can measure like a pro.
Tools You’ll Need for Measuring Windows
Before diving in, gather the tools you’ll need to make the job easier. Here’s your checklist:
- Measuring tape: A sturdy steel tape measure is your best bet.
- Pencil and notepad: Jot down your measurements as you go.
- Level: Great for ensuring straight lines, especially for outside mounts.
- Smartphone or tablet: Use apps to record your measurements digitally if that’s your style.
Having these tools ready makes it simple to measure your windows for both inside mount and outside mount installations. Preparation is half the battle, and with the right tools, you’ll be on the right track.

Step-by-Step Guide for Measuring Windows
Measuring for Inside-Mounted Blinds/Shades
Inside-mounted window blinds and window shades fit neatly within the window frame, giving your space a clean, streamlined look. Follow these steps:
- Measure the width: Measure the inside width of your window frame in three places—top, middle, and bottom. Use the narrowest measurement to ensure a snug fit. Precision matters, so avoid rounding.
- Measure the height: Similarly, measure the inside height of the window frame at the left, center, and right. Use the tallest measurement for the best results.
- Check the depth: Ensure your window frame has the minimum depth required for your chosen product. This ensures your blinds or shades will be installed correctly.
Measuring for Outside-Mounted Blinds/Shades
If you’re going for outside-mounted window treatments, they’ll cover the window frame entirely, offering more light control and privacy. Here’s how to measure:
- Measure the width: Determine how wide you want the coverage to be. Typically, this means adding 1–3 inches on each side of the window frame for better light blocking.
- Measure the height: Measure from the top of the mounting area to where you want the blinds or shades to end. This could include some overlap below the frame.
- Account for obstructions: Look for trim, moulding, or nearby furniture that might interfere with installation. Planning ahead ensures everything fits perfectly.
Measuring for Shutters
Measuring for window shutters can be a bit trickier because of their unique design, but don’t worry—we’ve got you covered:
- Measure the width: Like with inside-mounted treatments, measure the inside width at three points and use the narrowest measurement.
- Measure the height: Measure the height in three spots and use the tallest measurement to account for variations in your window frame.
- Check the frame depth: Make sure the frame is deep enough to accommodate shutter panels and hinges. This prevents operational issues later.
- Account for clearance: Identify any obstructions, like window handles or cranks, that could get in the way of opening and closing the shutters.
Common Measurement Mistakes to Avoid
Here are a few pitfalls to watch out for when measuring your windows:
- Not measuring at multiple points: Remember, windows aren’t always perfectly square. Take width and height measurements in three places to account for irregularities.
- Rounding measurements: Be precise and record measurements to the nearest ¼ inch. Rounding can lead to ill-fitting treatments.
- Skipping depth checks: For inside mounts, confirm the window frame’s depth meets the product’s specifications.
- Forgetting to double-check: Always review your measurements before placing an order. A little extra effort upfront can save you a lot of trouble later.
These steps ensure your custom window coverings will fit perfectly and look stunning.
Pro Tips for Ensuring a Perfect Fit
Want to measure like a seasoned pro? Here are some insider tips:
- Double-check everything: Review your measurements twice. Even small mistakes can cause big problems.
- Get help if needed: For large or high windows, an extra set of hands can make all the difference.
- Consult the experts: If you’re unsure about anything, contact Window Blinds Direct. Their professionals can guide you through the process.
- Use templates: Some manufacturers offer templates to help you organize your measurements. They’re a great way to stay on top of things.

How to Record and Use Your Measurements
Organizing your measurements is key to a smooth ordering process. Use a chart or template to record:
- Width and height: Label each set of measurements clearly by room.
- Mount type: Note whether your measurements are for inside mount or outside mount.
- Special considerations: Add any notes about obstructions or overlaps you’d like.
When it’s time to shop for window blinds, window shades, or window shutters, these detailed notes will make the process easy. Many retailers, like Window Blinds Direct, even let you input measurements directly into their order forms.
Why Choose Window Blinds Direct for Your Window Treatments
Window Blinds Direct is your go-to source for custom window coverings. Here’s why so many homeowners choose them:
- Endless customization: From sleek window blinds to elegant window shades and timeless window shutters, they offer solutions to suit every style and need.
- Expert advice: Their team is always ready to help you get your measurements right and pick the perfect product.
- Affordable pricing: You’ll get top-quality products without breaking the bank.
Measure with Confidence
Measuring your windows for window blinds, window shades, and window shutters doesn’t have to be daunting. With this guide, you’ve got the tools and tips to ensure accuracy and avoid common mistakes. Precise measurements lead to perfectly fitting custom window coverings that enhance both the look and functionality of your space. Need help or want to browse a wide selection of products? Reach out to the window treatment experts at Window Blinds Direct and start transforming your home today.
Windows Blind Direct proudly offers 100% Canadian blinds and shades. With our long-standing business experience and expertise, we can match homeowners with the perfect blinds, whether they’re looking for something traditional or something a bit more exciting.
Contact us today at 416-459-5600 or fill out our convenient online form for a free consultation with one of our expert designers. Let us help you find the perfect motorized blind for your home!