Position the tape measure at the center of the strap. If the measurement falls between 1 1/4” and 1 1/2”, select a 1 1/2” strap. If it measures between 1 3/4” and 2”, choose a 2” strap. Refer to
Pic. 2 for guidance
Position the tape measure at the center of the bottom hole on the left side of the frame. Wrap it around the frame twice, then extend it across to the outside of the frame on the right side without wrapping. Refer to
Pics. 3 and 4 for guidance