Project Source 19.5-in L x 1.16-in W x 13-in D Heavy Duty Gray Shelf Bracket in the Shelving Brackets & Hardware department at Lowes.com
The Shelf Brackets
LuckIn 4 Pack 8" Heavy Duty Shelf Bracket for Floating Shelf, Wall Mount Iron Industrial Floating Shelves Hardware Bracket for Kitchen Bathroom, Black (Fit 7.25" Board) - Walmart.com
Floating Shelf Bracket 101: Get the Right Floating Shelf Hardware - Shelfology
Amazon.com: BATODA 12” Shelf Brackets with Lip (Match 11.25" Board) - 6 Pcs J Shelf Bracket Black - Heavy Duty Hook Brackets for Shelves - Wall Mounted Support for DIY - Shelving
Crates & Pallet 12 in. Black J Steel Shelf Bracket 69122 - The Home Depot
Amazon.com: BATODA 10” Shelf Brackets with Lip (Match 9.25" Board) - 6 Pcs Z Shelf Bracket Black - Heavy Duty Hook Brackets for Shelves - Wall Mounted Support for DIY - Shelving
Rustic Brass Shelf Bracket | Signature Hardware
Platinum Elfa Ventilated and Decor Wire Shelf Brackets | The Container Store
Metal Corner Shelf Bracket - Cascade Iron Co
Everbilt Black Heavy Duty Shelf Bracket and Rod Support 19702 - The Home Depot