EcoBox 20 x 20 x 20 Inches 275 Double Wall Heavy Duty Corrugated Box (E205) Great for heavy items Ideal for packing overseas shipments Rated as 275 lb. Double wall with a gross weight capacity of 95 lb. box shipped flat, folded and securely bundled Great for heavy items. ^Ideal for packing overseas shipments. ^Rated as 275 lb. Double Wall with a gross weight capacity of 95 lb. ^Box shipped flat, folded and securely bundled.