Protect valuable artwork with BOX USA Art Shipping Boxes, designed for artists, galleries, photographers, print shops, and online art sellers. Measuring 20" x 20" x 4", these durable corrugated cardboard boxes are ideal for shipping paintings, framed artwork, canvas, prints, photographs, and other flat items. The 4-inch depth provides room for foam corners, bubble wrap, and protective padding to help keep artwork secure during transit. Easy to assemble and sold in a convenient 10-pack, these professional-quality art shipping boxes are perfect for exhibitions, customer orders, storage, and eCommerce fulfillment.