Solid Steel Construction High Weight Limit Easy Installation Indoor Outdoor Powder Coated Finish Made in the USA Set of 2. Made to fit STANDARD LUMBER Sizes. Please refer to size chart below to determine what size you need. No boards or shelves are included. Fits standard sized boards. This shelf bracket is Powdercoated to last your everyday use and look fresh. Easy upkeep! Each bracket is reversible and has 2 mounting holes apiece to hold your shelving sturdily in place! Flat black powdercoat. For indoor or outdoor use. These are made from 16 gauge steel. High weight limit! SIZE CHART: 1.5 H X 3.5 D = STANDARD 2X4 board. Outside dimensions of bracket are 4.75 D X 3.5 H X 1 W (inches) Dimensions of board hole: 3.75X 1.69 (inches) 1.5 H X 5.5 D = STANDARD 2X6 board. Outside dimensions of bracket are 6.75 D X 3.5 H X 1 W (inches) Dimensions of board hole: 5.75X 1.69 (inches) 1.5 H X 7.25 D = STANDARD 2X8 board. Outside dimensions of bracket are 8.5 D X 3.94 H X 1 W (inches) Dimensions of board hole: 7.5X 1.69 (inches) 1.5 H X 9.25 D = STANDARD 2X10 board. Outside dimensions of bracket are 10.5 D X 4.5 H X 1 W (inches) Dimensions of board hole: 9.5X 1.69 (inches) 1.5 H X 11.25 D = STANDARD 2X12 board. Outside dimensions of bracket are 12.5 D X 5 H X 1 W (inches) Dimensions of board hole: 11.5X 1.69 (inches)