Wall decals will stick to most smooth or lightly textured surfaces that are free of dirt and dust. Smooth walls, metals, and glass are ideal. They can also be installed on curved surfaces, like columns or pillars. Wall decals won’t stick to rough or uneven surfaces, like stucco, cinder block, and brick. You can test your wall with a piece of masking tape. If it sticks to your wall, then our decals will.