Yes. It worked with my Pella 192 inch by 84 inch door. All of the holes for the self-tapping screws lined up except one was slightly off center but the self-tapping feature took care of that. Pella recommends a reinforcement bracket and in the instructions stated that the reinforcement bracket should come with the electric garage opener, but the Chaimberland brand I bought did not have one included.
I believe it would work as long as you follow the recommendations for reinforcing the top of the door with 48 inch punched angle iron to distribute the pressure when it is being lifted.
I don't believe you can easily modify the 21 inch bracket. I did notice in the directions that came with my kit that an 18" bracket kit is available by special order.
Easy install, works as advertised!
The operator comes with a small bracket that fastens to the style on the panel, but is not used when an ORB (Operator Reinforcement Bracket) is available. It is highly recommended to reinforce the top panel with an ORB and at least a 1 1/4" x 1 1/4" punched angle 14ga (12ga is better) running the full length of the panel on the top edge. And it is preferable to support the top panel with a support stutt instead of punched angle, especially when the door is longer than 10' or is insulated and/or has windows. The manufacturer's warranty will not be honored if the door is not properly reinforced when attached to an automatic opener.
No, the bracket does not move. It is firmly attached to the top panel of the garage door and does not move independent of the garage door.
5/16". I actually bought a Everbilt 5/16 in. x 2-3/4 in. Zinc-Plated Square Wire Lock Pin for $3 out of the specialty fasteners drawer, and that way I couldn't drop or lose the cotter pin. It fits perfectly.
Not recommended with extension springs.
I highly recommend this bracket. Be sure to measure the panel height. They have two; 18 inch and 21 inch. It took less than 20 minutes to install.
no but use 5/8 or 1/2 inch self tapping or lag bolts to hold it