The following are required to build this product:
TRAMPA's Amazing under board Battery box is available in just about any length you can require, from 10cm right up to 1.9 meters, so if you are intending on making your own deck with a custom made under board battery or if you wish to become the worlds first Electric skateboard taxi which could be capable of fitting about 10 people (im sure we could get 10 riders onto a 1.9 meter longboard), or if you are dead-set on becoming the worlds furthest traveled on a single charge of a battery (a 1.9 meter battery could take you half the way around the world!!) then this is the battery tray for you as this custom tray size allows you to custom make your batteries as large as you can fit maxing out board performance incredibly!
TRAMPA deck material is bullet & bomb proof against explosions & impacts, it is the perfect material to house your expensive batteries as sharp stones, rocks & obstacle's, which are bound to poke out of the ground & scrape your board at some stage... The TRAMPA material is easy to cut to the exact length required with a handsaw or jigsaw. Cutting slots into the edges allows the structure to bend & follow the contour of the deck, this allows the under board tray to be easily fitted with nuts & countersunk bolts to the underside of your Deck (It doesn't need to be a TRAMPA Deck but it helps if it is :-)).
Check out Franks Build Thread on the E-Sk8 Forum giving FULL INSTRUCTIONS as to how to fit your custom made battery tray