Introduction

Mounting window blinds is an easy DIY project as long as you measure the space properly. We'll take you step-by-step through the process.

Adding blinds to windows can create subtle and delicate light, eliminate light altogether and give you some privacy. Your needs will inform what type of blinds you want and the best place to mount them.

Typically, if your windows have curtains, you should mount the blinds inside the windowsill. For windows without curtains, mount them outside of the window frame. Each type of blind is measured and mounted differently.

Check out this step-by-step guide to learn how to measure for inside and outside mounting window treatments. But first, some tips:

• Don’t round down — measure to the nearest 1/8-inch;
• Measure the window itself, not the existing blinds (if any);
• When writing your measurements, it’s width, then height (W x H);
• Use a metal measuring tape rather than a cloth one for the most accurate results;
• Once you’ve measured the window frames and chosen the blinds, review the mounting requirements before attempting to install the blinds.