Amazon.com: 2Pcs Heavy Duty Steel Mantel Brackets, 7 x 6 x 2½ inches Metal Shelf Bracket Support for Fireplace, Wall Mounted Floating Triangle Holder, Hand Welded Countertop Bracket Load 330 lb, 5.9
Starby Whimsical Heavy Duty Steel Fireplace Mantel Brackets | Michaels
Federal Brace Appalachian mantel bracket 8.85-in x 5-in x 8-in-Gauge Black Steel Wall Bracket in the Angles, Brackets & Braces department at Lowes.com
Fireplace Mantel Support, SOLD INDIVIDUALLY, Mantel Decor, Rustic Mantel, Farmhouse Decor, Mantel Shelf, Metal Shelf Brackets Industrial - Etsy