Abstract: Devices and methods for preventing baseboard tilt associated with fastening a baseboard to a wall panel having a recessed edge. A baseboard support includes a corner bracket having first and second upright base members and having one or more flaps extending from an upright edge a base member. Each flap forms a flap angle with an adjacent portion of the bracket. Each flap is attached to the bracket at a resilient flap corner, or flap hinge. The baseboard support can be positioned in a corner in an upright position. A first baseboard can be positioned so that the baseboard end engages the first upright base member. A second baseboard can be positioned to engage the second upright base member, forming a mitered joint between the two baseboards. The baseboard support provides a stop that prevents each baseboard from tilting away from its corresponding wall panel and creating an unsightly gap. The flap or flaps allow the baseboard support to stand freely in the interior corner prior to baseboard positioning.