Decorative Beam Straps & Box Beam Joint Covers

Hide box beam seams and small wall-end gaps with a finished architectural detail. The Tree Knot decorative beam straps wrap the exposed sides and bottom of a box beam, helping conceal the butt joint between beam sections or an imperfect end cut at the wall.
Two ways to finish your installation
At the wall: cover small scribe gaps where a box beam meets the wall.
Along a long beam: cover the seam where two beam sections meet.
Choose your style
Clean Architectural: a smooth, minimal black profile without decorative hardware.
Forged Architectural: a textured, forged-iron-inspired appearance with rounded decorative heads on the side faces.
Industrial Flange: a flanged profile for a defined beam-to-wall transition.
Wide Riveted: a 4-inch-wide strap with six rounded decorative heads on each side, arranged in two columns of three.
Choose the right size
Available size options: 6 x 6, 7 x 7, 8 x 8, 10 x 10, 8 x 6, 6 x 8, 10 x 8, and 8 x 10 inches. Measure the actual outside width and height of your finished beam before selecting a size. For rectangular beams, confirm the orientation and fit before ordering.
Decorative only. These straps are not structural connectors and do not support, secure, or replace the mounting system for a beam. Confirm the fit and installation method for your project.
Need help matching a strap to your beam? Send your beam dimensions and a photo. Planning a complete ceiling? Explore our real wood box beams.