Minecraft wiki entry for Things_to_do_when_bored, associated text: Step 2: Build nether buildings: nether bricks or nether crimson hyphae/warped hyphae to replace overworld wood, nether brick stairs to replace ordinary stairs, use nether brick fences instead of glass, the soul sand to replace wood and cobblestone, the ground of indoor use nether bricks. You can also use crimson doors instead of regular wooden doors.