Usage. When placed, allow blocks let users without world builder status place or destroy blocks in the area above them, while deny blocks prohibit users from placing or destroying blocks in the area above them.

What does allow in Minecraft do?

Allow Blocks permit the player to build or destroy. These permissions do not affect using items such as doors, levers, or chests.

What can you do with the allow block in Minecraft?

The purpose of an Allow block is to give a way to control where players can build. When an Allow block is placed, players will be allowed to dig and place blocks anywhere above an Allow block (overriding the Students Can Build setting for a world in Education Edition).