Mounting Options:
The tray can be mounted anywhere you have space available. You can drill holes in the tray to bolt it down, or grind off the powdercoat to weld on your own custom brackets.
If you are using AGM batteries, they can be mounted on their side, giving you more flexible mounting options. The lid is strong enough to hold the batteries in place if the tray is mounted sideways.
Dimensions:
The base of the tray is 14.25 inch by 10.75 inch, and it is 10.5 inch tall up to the top of the isolator.