2429 Tin Ceiling Tile - Union Square - Tin Plated Steel Drop In by Decorative Ceiling Tiles Inc.. $7.75. Our Tin Plated Steel Ceiling Tiles are perfect for Nail Up or Drop In applications in your Home or Business. This product must be primed and painted from both sides otherwise it will rust. The size is 2x2 and it weights about 2 pounds. It can be cut with tin snips.