Sideloaders are trucks which pick-up and transport long loads - or several pallets next to each other and then travel with these loads sideways through narrow aisles.

The name "Sideloaders" is also used by some for Turret Trucks which pick-up loads from either side of the aisle, then retract the load to within the dimensions of the truck and transport same through Very Narrow Aisles  (VNA)