If you’re not a square, then our R11 nested squares Styrofoam decorative ceiling tile is the tile for you! While it appears to be a staid and solid design of plain squares, if you look closer at the R11 tile, you will see a softly engraved secret a wide border of parallel diagonal lines joining the squares. Not only do these lines add subtle interest, they impart an additional sense of depth and dimension. The R11 nested squares decorative ceiling tiles are perfect for showing off your quirky, creative side to your friends, family, guests, and clients.