Port design ?

[704lay]

I am making my first box and wondering what does the port size 3.5" x 10" x 5.5" mean? the box size is 19.5" x 43" x 19.5"

[80INCHES]

it meand u need a bigger port
try 60square inches

80

[704lay]

Thanks for the help this is my first box so this may be a dumb question but what exactly do you mean when you say the port size is 3.5" x 10" x 5.5"? does that mean 3.5" wide 10" deep than another 5.5" length thats 3.5" wide?

[Worlddre]

3.5" wide

10" tall

5.5" in length

if you need some help i be in charlotte too and would be glad to assist

[704lay]

i sent you a pm Worlddre