EveryCutFileMatch the construction
A folded card, a layered decoration and a freestanding box have different stiffness needs. Look at fold locations and unsupported spans in the template before choosing material.
Read the paper label
GSM describes mass per area. A pound rating needs its paper category, so the same pound number is not a universal measure of thickness.
Use the matching machine instructions
Material, mat and blade guidance belongs to the manufacturer and your machine model. This site does not publish universal pressure or pass settings.