The Art Board Thick Stretched Canvas 20x20 Inches (380gsm) features a heavy-duty, premium cotton construction designed to maintain exceptional surface tension and structural integrity over time. Its dense, professional-grade 380gsm profile arrives triple-primed with an acid-free acrylic gesso that provides a highly receptive, archival foundation for heavy oil impasto and fluid acrylic pouring. Measuring 508mm x 508mm, this perfectly symmetrical square format offers studio artists excellent paint adhesion and satisfying brush resistance for modern abstract compositions.