Miller Supply's stock white Boxes are 200 lb. test Regular Slotted Containers (RSC). These corrugated cardboard boxes are sold in bundles and furnished flat. All dimensions listed are inside dimensions. The first dimension is Length, followed by Width and then Depth.
All boxes listed are 200 lb. test Mullen
Burst strength of 200 lb. test material means it will with stand 200 pounds of pressure per square inch as measured by the Mullen tester.
Boxes are #3 white outside and brown inside