PERFECT FIT FOR THREE SIZE BOARD WIDTHS: We design this shelf brackets heavy duty with three different size sizes, fit for size widths of 12 inches, 10 inches, 8 inches lumber, please check and measure the width of your boards STABILIZED MOUNTING DESIGN: Shelving brackets have a regulated and stabilized 90° angle, these L-shaped brackets ensure that items remain secure and do not tilt or drop when placed on the boards HEAVY DUTY: The shelf brackets are made of 1/6 inch thick iron with a black powder coated finish that is scratch and rust resistant, ensuring exceptional strength and durability, they can support up to 80 lbs EASY TO INSTALL: Each set of brackets comes with the required screws, the installation process is simple and straightforward and can be completed in less than 16 minutes SUITABLE FOR ALL TYPES OF SCENARIOS: The shelf brackets can be used in the kitchen, pantry, fireplace, garage or any room to create more storage space for you Shelf bracket material is quality steel with black powder coating, which is scratch and rust resistant, this bracket provides strong support and stability to ensure your floating shelves can safely hold a variety of items without sagging or bending.