thats probably sufficient... altho, a poor design could jeopardize the
safety. Are you welding these? The long cut outs will take away from any
structural strength making the box more likely to "twist".

"bruce" wrote in message
om...
Hi All

I want to make a couple of seat boxes from Aluminium to replace the
existing pedestal seats. The idea is to house the batteries in one and
use the other for extra storage. I will then mount the seats onto one
end and hey presto "less wasted space". My problem is however how
thick is strong enough for the Aluminium plate. I was hoping to get
away with 5 mm plate? The boxes will be approximately 410 mm high x
360 mm wide x 650 mm long and have cuts outs on one side 400mm x 300
mm to allow access as required. What have you seen or built.

All feedback will be appreciated
Regards & thanks
Bruce