I'd say with either, add some braces on the inside to prevent flexing which would effectively destroy the box
Do fiberglass resin on inside and brace the heck out of it! You have roughly a 6-7 cubic ft box. Sent from my SCH-I500 using Tapatalk
i think walmart has it. Im not very good with fiberglass but that shud make it a little stronger. Yeah man, your only gonna want a sub in part of that box depending on what kind you want.
Man thats way to much box for one. Prolly too much box for both haha. Sent from my SCH-I500 using Tapatalk
Id put the sub in the back and try to make some storage space/cup holders and stuff up front.. I want to do somthing like this in the future