An improved mobile paint booth system and method for applying paint to a vehicle is herein disclosed. An improved mobile paint booth can comprise a plurality of vertical supports, a base support, a first upper beam, and a second upper beam. The plurality of vertical supports can comprise a corner support at each corner, and a middle support along a first wall. The base support can be substantially in the shape of a “U” that can connect each of the vertical supports. The base of the “U” can be along the bottom of the first wall. The first upper beam that can connect a first set of the corner support and the middle support. The second upper beam that can connect a second set of the corner support.