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Measuring for a Big Air Super Shadow or Tube Top Bimini

The Super Shadow and Tube Top Biminis are large 76″ x 76″ bimini tops that mount on top of your tower.

When ordering your Super Shadow or Tube Top Bimini top, you will need to provide specific dimensions concerning your tower.

These required dimensions (CH and CF) determine the size and number of tubing clamps for your bimini top. Please take moment to review these measurements before submitting your order.


“CH” and “CF” are the circumference of the tower tubes, measure all the way around. See image to the right. If you know your tubing size, take it and multiply it by 3.14. Example: 2″ tubing – 2 x 3.14 = 6.28

  • “CH” applies to the “H” member or the top horizontal part of the tower.
  • “CF” is the front leg tower tube circumference.

Basic installation consists of these steps:

  1. Assembly of the tubing frame
  2. Attaching the frame to the tower
  3. Installing the fabric top
  4. Tow head grommet installation