Abstract: A building block holder for securely holding thin bricks or other building blocks in a spaced relationship on a wall comprises a panel formed of sheet material that is adapted to be fastened to the side of a building. The panel has rows of spaced block support elements in the form of stamped, inclined, V-shaped prongs that extend outwardly from the panel such that when the gap between the blocks is filled with mortar, the mortar flows behind the prongs and thereby locks the building blocks on the panel. The panel also includes glue lock openings behind the blocks for more securely locking the bricks to the panel. A plurality of rearwardly deformed portions on the panel space the panel outwardly from a substrate and serve as water drains and recessed locations through which mounting screws can be extended. A lower edge of the panel is displaced outwardly from a rear surface of the panel such that an upper edge of the panel below will fit behind the lower edge.