Shorter sides are the end that will be open with the latch
Joints are secure and tight edges but I do recommend using black Silicone to seal edges, that way you can view unsealed areas easier.
Sides are 2.75" h unless You need to request higher side walls.
Please Note: if custom size is ordered we will respond back to you via email.
Custom orders will not exceed 4 feet wide by 8 feet long additional shipping fees may apply.
Don't Forget to Order the Sidewall Clamp "Recommend 1 for every 6 inches on each side "Not needed but well keep your Board secure and not float in the epoxy. It is a nice feature to have and not worry about!