Bamboo Hanging Sign is the bamboo variant of Minecraft's hanging signs — text boards that attach to the underside of blocks or hang from a self-supporting wall bracket. One crafting recipe turns 6 blocks of stripped bamboo and 2 iron chains into 6 Bamboo Hanging Signs. Trial chambers also stock Bamboo Hanging Sign in corridor barrels in Java Edition 1.20.3 and Bedrock Edition 1.20.60 or newer, so exploration works as a second source. Bamboo Hanging Sign carries hardness 1 and blast resistance 1 (resistance to creeper and TNT explosions), breaks fastest with an axe, and stacks to 16.

Bamboo Hanging Sign shows up to four lines of text on lines narrower than a standing sign offers, which makes Bamboo Hanging Sign a compact label for bamboo jungle bases and market stalls. Dye recolors the text, a glow ink sac makes the text glow, and a honeycomb waxes the sign against further edits — a change no player can reverse. Bamboo Hanging Sign never burns, and water and lava flow around the sign body, so builders place hanging signs to steer fluids and label underwater storage. Bamboo Hanging Sign offers three placement styles: hanging under a wide block gives parallel chains, hanging under a narrow block such as an iron chain gives a 16-direction arrow shape, and a sign placed on a block side sits on a floating bracket.