A Cobbled Deepslate Wall is a sturdy wall variant made from Cobbled Deepslate, offering a dark, rugged aesthetic ideal for underground fortresses and deep caves. It connects seamlessly with other walls, fences, and solid blocks, making it useful for enclosures and decorative structures. Cobbled Deepslate Walls can be mined using any pickaxe; otherwise, they drop nothing.

They generate naturally within ancient cities and can be crafted using Cobbled Deepslate or obtained through stonecutting. Like other walls, Cobbled Deepslate Walls can be placed under a note block to produce a bass drum sound.