Alu Star Measurement Instructions
With the following instructions, we want to show you how to get rough opening and finished size measurements.
We also show how to determine the operation type (strap, gear or motor).
1. Check the method of installation:
A. Surface Mount:
Adjacent to the opening, this is outside above or beyond the window or door.
B. Trapped Opening
Between the opening as in the case of an enclosure
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2. Width Measurements:
Measure the opening to be covered with the shutter.
Please add the measurements for the appropriate rail when the shutter is surface mounted, e.g.
- 37 mm and 40/42 mm Slats: add 2 1/8" for each rail
- 50 mm, 55 mm and 60 mm Slats with 45 Box: 3" for each rail
- Barracuda, RCE40, Security: add 3" for each rail
3. Height Measurements:
A: If you are mounting adjacent to the opening (shutter box above the opening), take the measurement of your opening and add 2" for the bottom hang down (end slat) plus the shutter box size. The shutter box size is determined by the profile and total height of the shutter, see page 5 (and Fig.3).
B: If you want to mount the shutter directly within an opening, simply measure the total opening height the shutter will fit into (Fig.4).
4. Choose the exit position for the different operation types
see sketches for the exit positions

Gear : Exit positions I, II and III possible, I is most common
Strap (Recoil Box) and Crank box with cord: I, II and III possible, I is most common
Motor: The motor exit is determined by the installer and depends on the switch location
If you would like a different option, please use sketch IV to draw your own version
Always determine the side of operation as looking from inside of the house or opening.
Note: Most shutters will be shipped in 3 separate cartons:
- Shutter box assembled
- Guiderails, stormbars and Packout
- Curtain
