Stained Glass Books, Patterns & More! BOOKS LAMPSHADE PATTERNS FREE GLASS BASE PATTERN Stained Glass Design Books Lampshade Patterns Cliffside Studio sells lampshade patterns in the following sizes: • 14″ Square – 5100 Series • 12″ x 18″ Rectangular – 5200 Series • 14″ x 20″ Rectangular- 5400 Series • 20″ Octagonal – 5800 Series