Confer Plastics ROLL2GUARD 9300 Assembly, Installation And Use Manual page 6

STEP 2: Installing the Tambour
Determine your installation height and configuration using the
pictures and diagrams below.
Take your time and read the instructions thoroughly before cutting.
An incorrect cut cannot be reversed and will impact the installation.
If you cut it incorrectly, it may render the tambour unusable and
compromise the installation.
6
Outside 9300: Proceed to Step 2B (any height)
Inside 9300: for 48" Installations proceed to Step 2A
Inside 9300: For 55"- 60" Installations proceed to
Step 2C
Inside 9300: for 48" Installations proceed to Step 2A
Inside 9300: For 55"- 60" Installations proceed to
Step 2C
Outside 9300: Proceed to Step 2B