I made this fan bracket to fit three 80mm (ca 3 1/8 inches) computer fans. These are the common fans found on desktop computers. After making this bracket, I decided to go with a five fan unit, so I don’t need this one anymore. This bracket is made of ½ acrylic and is 17 inches long. You can see my five fan build HERE. This one will need three #10 x 24, 1 inch flathead screws. I used the original stainless steel screws in the five fan unit.