Bulk Aggregates and Sand & Gravel delivery methods. Aggregates, Sand and Gravel are delivered in the following vehicles: 4 Wheeler, Gross weight 18 T, Carrying Capacity, 11 T 6 Wheeler, Gross Weight 26 T, Carrying Capacity 16 T 8 Wheeler, Gross Weight 32 T, Carrying Capacity 20 T Artic, Gross Weight 44T, Carrying Capacity 30T