What is volumetric weight and how does it affect my shipping cost?

Volumetric weight applies when a parcel or pallet occupies more space in a vehicle than its actual weight implies — the carrier bills the higher of the two figures. The formula is length (cm) × width (cm) × height (cm) ÷ 5000. A parcel measuring 50 × 40 × 30 cm produces a volumetric weight of 12 kg. Entering accurate dimensions at the time of booking prevents surcharges applied on collection or delivery.