What's a house? What's shelter? An exhibit at the Florida Craftsmen Gallery in St. Petersburg offered national and regional artists a chance to express their thoughts and invited gallery patrons to join in a community "problem-solving" project: financing the purchase of the gallery space. Exhibition sponsor Don Strobel, who owns Strobel Building of St. Petersburg, a builder and remodeling contractor, made and donated 50 wooden house-shaped frames, 12 by 12 inches. Then artists were invited to embellish, decorate and create, using a variety of media. Some of their finished products _ "a neighborhood of artistic solutions" _ are shown here. The exhibit, "Gimme Shelter," runs through April 20 at the gallery, 501 Central Ave., St. Petersburg. Hours: 10 a.m. to 5:30 p.m. Monday through Saturday. Information: (727) 821-7391. The houses are available for purchase starting at $100; proceeds go toward the purchase of the gallery's home in the Renaissance Building.