I don't much about acoustics or density with material, but I know that my studio isn't treated at all and has many dips and corners. So I'm wondering if I can use this material as make shift bass traps. I have a lot excess.
they are better than store bought because you can structure them to match your acoustic profile as you build them
put another way there is no such things as a one-size fits all bass trap - each one is designed to cover a range of frequencies that may not match your specific room requirements
So both of the sites have instructions, but none of them really mention how to react to the numbers you gave me. Like the DIY just stacked his bass absorbers to the ceiling.