Complete Guide to Measuring Windows for Blinds and Shades
Accurate measurements are the most important step when installing new blinds or shades. A small mistake in measurement can lead to poor fitting, gaps in light control, or installation problems. Whether you are installing roller shades, zebra blinds, honeycomb blinds, or roman shades, following the correct measuring process will ensure a perfect fit.
This guide will help you measure your windows correctly before ordering blinds or shades.
Tools You Will Need
Before you begin, make sure you have the right tools:
- Steel measuring tape (recommended for accuracy)
- Pencil and paper or phone to note measurements
- Step ladder (for tall windows)
Avoid using cloth or flexible tape measures because they may give inaccurate results.
Step 1: Decide Between Inside Mount or Outside Mount
The first step is deciding how you want the blinds to be installed.
Inside Mount
Inside mount blinds fit within the window frame. This option gives a clean and built-in look.
Benefits:
- Modern appearance
- Shows the window frame design
- Works well for most homes
Outside Mount
Outside mount blinds are installed above or outside the window frame.
Benefits:
- Blocks more light
- Makes windows appear larger
- Good for shallow window frames
Your measurement method will depend on the mount style you choose.
Step 2: Measuring for Inside Mount Blinds
For inside mount shades, measure the window frame from the inside edges.
Measure the Width
- Measure the width at three places: top, middle, and bottom.
- Record the smallest measurement to ensure the blinds fit properly.
Measure the Height
- Measure the height on the left, center, and right sides.
- Record the largest measurement.
Measure the Depth
Check the depth of the window frame to make sure there is enough space for the blinds to fit properly.
Step 3: Measuring for Outside Mount Blinds
Outside mount blinds are mounted on the wall or above the window frame.
Measure the Width
- Measure the width of the window opening.
- Add 2–4 inches on each side for better coverage and light blocking.
Measure the Height
- Measure from the top mounting position to the bottom of the window.
- Add extra height if you want the blinds to cover the window frame completely.
Step 4: Double-Check Your Measurements
Before placing an order, always double-check your measurements.
Helpful tips:
- Measure each window individually
- Write measurements clearly
- Use inches for consistency
- Always measure twice for accuracy
Even small measurement errors can affect the final installation.
Step 5: Consider Special Window Types
Some windows may require additional measuring steps, such as:
- Bay windows
- Corner windows
- Sliding doors
- Floor-to-ceiling windows
These may require customized blinds or professional measurement.
Final Thoughts
Measuring your windows correctly ensures that your blinds or shades fit perfectly and look professional. Taking the time to measure carefully will help avoid installation problems and give your windows a clean, finished appearance.
At Vellora Shades, you can find a wide range of stylish window treatments including roller shades, zebra blinds, honeycomb blinds, Shangri-La sheer blinds, and Roman shades designed to fit modern homes perfectly.
