If you need standard sizes or complete kits including brackets, these well-known stores are reliable options. : Carries the Dolle GLASSLINE Glass Shelf Go to product viewer dialog for this item.

: This site offers a highly customizable experience where you can choose tempered glass as small as 2" x 2" up to 60" x 96". They provide various edgework options, including flat polished or rounded "pencil" edges, and most orders ship within 1–2 days.

: A great source for both readymade and custom-cut shelves in various shapes like rectangles, quarter circles, and triangles. They offer thicknesses ranging from

series, which uses 8mm shatter-resistant safety glass. These are often sold as individual boards, allowing you to choose your own brackets. : Offers brand-name solutions like the Wallscapes Glacier Rectangular Bracket Shelf Go to product viewer dialog for this item.

You can find tempered glass shelves through specialized glass manufacturers, large home improvement retailers, and major online marketplaces. Depending on whether you need a standard size for a floating display or a custom-cut piece for a specific cabinet, here are the best places to buy them: Specialized Glass Retailers (Best for Customization)

: Known for high-quality floating shelves, such as their Dulles Glass 6" x 24" Rectangle Floating Glass Shelf Go to product viewer dialog for this item.

, which includes silver aluminum brackets and can hold up to 55 lbs.

These vendors allow you to specify exact dimensions, glass thickness, and edge finishes, which is ideal for replacing broken cabinet shelves or unique DIY projects.