The Crimson Slab is a half-block piece crafted from Crimson Planks, which are derived from the stems of towering fungi found in the Nether's crimson forests. Its rich red hues and wooden texture make it a popular choice for decorative elements, stairs, and as a unique building material that resists burning, unlike its overworld wood counterparts. It can be placed horizontally or vertically to create various architectural features and is stackable for creating double slabs.
This item has no numerical item ID, therefore you must use the item ID to spawn the item. Numerical item IDs were removed in Minecraft version 1.13.
The item id for Crimson Slab is minecraft:crimson_slab
The item ID for Crimson Slab is minecraft:crimson_slab
This is the spawn command to give yourself Crimson Slab in Minecraft which includes the Minecraft /give command. If you are using the Essentials plugin you will need to use /minecraft:give instead of /give