A dishwashing machine includes a tub having a sidewall. The sidewall has a first wall and a second wall connected by a bottom wall. The sidewall is connected to a first end wall and a second end wall. The first end wall is connected to the first wall, the second wall, and the bottom wall on a first end of the sidewall and the second end wall is connected to the first wall, the second wall, and the bottom wall on a second end of the sidewall forming an interior volume. The tub has the same amount of welding regardless of a length of the sidewall.