Abstract: The bulk bin of the present invention comprises four sides and a base. The interior of the bulk bin comprises a substantially smooth and continuous surface, without any sharp or abrupt corners or edges. Each of the sides comprises a top strip portion and a curved wall portion. The top strip is substantially straight in the horizontal direction, whereas the curved wall portion is curved (in a concave manner) in the horizontal direction. A chamfer provides a smooth transition between the relative straightness of the top strip portion and the concavity of the curved wall portion, while maintaining the overall smooth and continuous interior surface of the bulk bin.