A36 angle steel comes in various sizes to suit different applications. For equal - angle A36 steel, the side lengths typically range from as small as 1/2 inch (12.7mm) up to 8 inches (203mm). Thicknesses for these equal - angle sections can vary from 1/8 inch (3.2mm) to 1 inch (25.4mm). For unequal - angle A36 angle steel, the common side - length combinations span from 2 inches×1.5 inches to 8 inches×6 inches, with thicknesses ranging from 1/4 inch to 3/4 inch. These standardized sizes allow for easy selection based on the load - bearing requirements and space constraints of a project. For example, smaller - sized A36 angle steel is often used in light - duty applications like small - scale furniture frames or simple bracing in residential construction, while larger sizes are suitable for heavy - duty industrial structures or large - scale building frameworks.