All of Create Deco's brick and brick tile slabs, stairs and walls have either Bricks or Tiles incorrectly pluralized in their names. Looking at vanilla brick blocks and those of most other mods, they should be <whatever> Brick Slab/Stairs/Wall or <whatever> Brick Tile Slab/Stairs/Wall instead of <whatever> Bricks Slab/Stairs/Wall or <whatever> Brick Tiles Slab/Stairs/Wall.