Usage Beam support brackets are used to add structural support to longer roof beams to prevent bowing/sagging, particularly when the roof beam is bearing the weight of roof rafters. Our heavy-duty 4x4 steel beam support brackets have a 45-degree angle. For each beam support, you'll need to get 2 brackets (one to attach to the vertical post and one to attach to the roof beam). 4x4 Beam Support Bracket Features Made with premium 14-gauge steel (~2.0mm thick) Made for dressed lumber commonly called 4x4s (actual dimensions are 3.5” x 3.5”) Laser-cut, bent and welded Advanced weather coating technology to withstand extreme weather conditions Pre-drilled holes for securing wood and accessories to bracket Includes stainless steel screws (1.5-inch #10 self-tapping wood screws with pan/round head painted black) for securing wood into bracket Backed by a 5-year warranty Shipped directly to your doorstep from Boise, Idaho Dimensions & Specifications Width of arm: 3.75 inches (95 mm) Depth of arm: 3.75 inches (95 mm) Length of arm: 7.5 inches (190 mm) on front, 3.75 inches (95 mm) on back Angle of arm: 45 degrees Inner dimensions of arm: 3.6 x 3.6 inches (92 x 92 mm) - made for 4x4 wood posts (which measure 3.5 x 3.5 inches) Holes on arm: 4 (2x2 grid) on front side Hole size: 0.25 inch (6.35 mm) - ideal for #10 size screws (included) Weight: 1.875 pounds Not included: wood posts Other Universal Steel Brackets Check out our entire selection of universal 4x4 (and 2x4) steel brackets OR larger 6x6 (and 2x6) steel brackets.