A utility rack for pickup trucks with a pair of rack assemblies configured to carry cargo above a pickup truck bed. The rack is easily installed and removed without requiring drilling or other modifications to the pickup truck and is configured to carry heavy loads while utilizing relatively lighter weight materials. The rack assemblies have an elongated main body member with support assemblies at each end and a clamp assembly for securing the support assemblies to the truck bedrails. Each support assembly has two legs and a base member forming a triangular configuration with a receiver member disposed at the upper ends of the legs to connect to the main body member. The legs pivotally mount to the base member to allow the base member to correspond to the angle of the bedrails. One or both rack assemblies can be a sawhorse for use off of the pickup truck.