It depends...what is the shape; triangular, trapezoid, stepped sides?
Triangular and trapezoid shapes can be made using insets and \"Angle Part\" settings but one with stepped sides will have to be two cabinets made into an assembly.
Greg McCorkill wrote:the back needs to be 48 and the front needs to be 33 with sides connecting the two so i can drop a sink in and put a radius countr on it
I saw that in the first post, but what SHAPE is it? Is it like 1, 2 or 3 fron the attachment?
I misspoke in my previous reply--with a cabinet that has a parallel front and back, insets will not do what you want to accomplish.
You will have to remove the left and right ends and replace them with display panels. Then you will have to edit the top, deck and shelves in the part editor to get the angles.
Associate the display panels to the cabinet and save it as a cabinet.