How to Measure for Custom Curtains and Blinds

Before ordering custom curtains or blinds, measuring is one of the most important steps. Accurate dimensions affect not only how the finished product fits, but also how it looks, functions, and performs in daily use.

Many buyers worry that measuring will be difficult, but the process is usually much easier once you first separate whether you are measuring for curtains or blinds. This guide explains the basic points to consider before moving on to product selection, pricing, and custom planning. If you need curtain-specific help, you can also refer to our How to Measure Your Curtains guide.

Why Accurate Measuring Matters

Custom products are made based on the dimensions you provide, so measuring accuracy is very important. If the size is incorrect, the finished result may not look balanced, may not provide the right coverage, or may not work smoothly in daily use.

That is why measuring carefully at the beginning is often more important than making changes later.

Featured image: Serene Weave Curtain – Minimal Textured Drapes

How to Measure for Custom Curtains

When measuring for custom curtains, the first step is to identify the width of the track or rod and the finished height you want the curtains to reach.

In most cases, curtain width is based on the actual width of the track or rod, while the finished curtain width is then adjusted according to fullness and the final look you want. Curtain height depends on whether you want the curtains to touch the floor, float slightly above it, or stop at the window sill.

When measuring curtains, it is usually helpful to check:

  • The full width of the track or rod
  • The height from the installation point to the desired finished position
  • Whether the curtains should extend beyond the window frame
  • Whether you want a fuller or cleaner finished look

For more detailed instructions, you can follow our curtain measurement instructions before placing a custom order.

How to Measure for Custom Blinds

Blinds are measured differently from curtains. In most cases, the first decision is whether the blinds will be installed inside the window frame or outside it.

Inside Mount

If the blinds will be installed inside the window frame, you usually need to measure the actual inside width and height of the recess. This option often creates a cleaner and more built-in look, but it also requires more accurate measurements.

Outside Mount

If the blinds will be installed outside the window frame, you usually need to measure the full area you want the blind to cover. This option often gives more flexibility for privacy and light blocking.

When measuring blinds, it is usually helpful to check:

  • The actual window opening size
  • Whether the blind is inside mount or outside mount
  • The coverage area you want
  • Whether you care more about neat appearance or stronger coverage

If you are measuring for a Roman blind, you can also use our Roman blind measuring guide for a more product-specific reference.

 

Inside Mount

Outside Mount

Common Measuring Mistakes to Avoid

Many measuring problems do not happen because buyers forget to measure, but because they miss small details that affect the final result.

Common mistakes include:

  • Using the same measuring method for curtains and blinds
  • Not deciding between inside mount and outside mount first
  • Measuring only the glass area instead of the full installation area
  • Not thinking about the final drop or finished look
  • Recording measurements inconsistently

These may seem minor, but they can affect the final fit and appearance of custom window coverings.

What to Do If You Are Not Sure

If you are not fully sure how to measure, the safest first step is to record the basic width and height of the window clearly, then confirm the installation type and the finished look you want. In most cases, having clear basic dimensions makes the next stage of custom selection much easier.

Once your measurements are ready, you can also explore our Curtain Pricing Guide to better understand customization options. For project needs, trade support, or bulk orders, you can contact us through our Wholesale Inquiry page. If you want to explore more custom product directions, you can also browse our Designers’ Studio.

If you would like to learn more about our manufacturing capabilities and factory-direct supply model, explore the pages below.

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