Three-ply single-wall board puts one fluted medium between two linerboards, making it the most economical general-purpose packaging solution. Applications: short-haul transport, light products, e-commerce parcels and inner cushioning. Performance: low tare weight, fast converting and good printability, suited to high-volume standardised packaging. Selection guide: choose it when a single unit weighs under 15 kg and stacking stays within four layers.