Need directional signs? We're here to help! We offer many different options in material, thickness and durability. Our Dibond signs come in 6mm that are good for outdoor signs that can be fixed to a wall or installed between posts. Our PVC signs are used for indoor signage and come in 1/8" or 1/4". Keep in mind how your sign will be used and that the 1/4" will be stronger with less bend. Aluminum .080 signs can be used outdoor. Our Corex signs can be used indoor or outdoor and come in 1/4" or 3/8" thicknesses. 1/2" Foam board is good for indoor signs.