Which extension size should I order?

Our extensions come in different sizes, and figuring out which size you need is fairly simple. Just follow these steps while using the illustration as a guide:

• Step 1: Take measurements for A (inches from the door to the inside of the door handle) and B (from the door to the edge of your blinds).
• Step 2: Take measurement B and add one inch.
• Step 3: Subtract measurement A from the sum you got in Step 2. The difference is the length of the extension you should buy.