SMF, Inc. started building large walk-in, van-type bodies. By cutting out the back wall of the cab, they can create a walk-through into the rear work area. The wall starts with aluminum cross members and aluminum side and front panels, which are lined with plywood. There are endless different interior packages to fit any customer’s needs. With this added product line, it allows a customer to go into a walk- in van on a much heavier GVW-rated chassis.