Sheet metal bend offset

Dantech

Hello;
I'm very new to Onshape, but have been searching for a couple hours and watched videos but can't find a solution to my problem.
Example;  I want to make a sheet metal box which measures let say, 2"X4"X6". I draw this as a solid, the open up the sheet metal command. The problem I'm having is that now material thickness is added to my original drawing , and since I'm using .062" material, my box now measures 2 1/8"X4 1/8"X6 1/8".
How do I configure Onshape so that the final size of my box is the same as my original drawing?
Thanks-for any reply
Dan

lana

Flip direction at which thickness is applied, then the external walls of sheet metal box would match the faces of your original box

lana

Flip direction at which thickness is applied, then the external walls of sheet metal box would match the faces of your original box

Dantech

Thank-you !! 

Dantech

Thank-you !