To make Red Sandstone Slab, you’ll need Red Sand and Red Sandstone. Please follow the following steps to make a Red Sandstone Slab.
In order to make red sandstone slab, the basic item that you will have to find and get is red sand. Use any shovel to gather at least twelve red sands. You can find red sand in the mesa biome.
After that, you will need to craft Red sandstone. Go towards the crafting table and open 3*3 crafting grid. Add 12 Red sand blocks on the crafting grid in four adjacent cells to craft 3 Red sandstones as 4 Red sand blocks can make 1 Red sandstone. Add them in your inventory.
Red Sandstone Slab
Now you can craft red sandstone slabs by adding three Red sandstones on the 3*3 crafting grid to craft 6 Red sandstone slabs. Don’t forget to bring these red sandstone slabs in your inventory. Red sandstone slab can be used for decoration.