Box size help

[BlueChrome]

When making a fiberglass sub box, how would I get the airspace right? Like whats the right math to use?

[tRiGgEr]

When making a fiberglass sub box, how would I get the airspace right? Like whats the right math to use?

There is no formula for figuring out an unubtanable solution.

But you can fill the mold with a solid substance and measure it. Dump a pound of sand in there and go from there...

Edit - If you need to know how big to make it before hand just rough estimate the dimmensions. And work from there.

[BlueChrome]

There is no formula for figuring out an unubtanable solution.

But you can fill the mold with a solid substance and measure it. Dump a pound of sand in there and go from there...

Edit - If you need to know how big to make it before hand just rough estimate the dimmensions. And work from there.

Thanks, that helps more than you know it haha

[SSS 18734]

fill it with water and measure the liters

[BlueChrome]

Now if it comes out under or over the airspace specs, am I SOL, or is there a way to correct it?

[954runner]

packing peanuts may be easier than sand.

[tRiGgEr]

Now if it comes out under or over the airspace specs, am I SOL, or is there a way to correct it?

Adding a solid item, say 2x4 wood or left over MDF laying around will decrease the internal volume.

For a box to small, adding some polyfill will help.

[BlueChrome]

Adding a solid item, say 2x4 wood or left over MDF laying around will decrease the internal volume.

For a box to small, adding some polyfill will help.

Thanks again