Door configurations of the box trucks for sale offer modular flexibility for diverse operational needs. Standard rear doors include 270° double swing doors, constructed from 1.2mm galvanized steel with a multi-point locking system (three latches per door). Roll-up doors (optional) feature an aluminum slat design (thickness 25mm), operated by a 12V electric motor (opening speed 0.3m/s) with manual override in case of power failure. Side doors (available on 4.2m models) are 1.5m wide, equipped with a cam-lock mechanism and weatherstrip seal (compression force 20N/m). For cold chain applications, doors incorporate a 100mm polyurethane insulated core, with heated door frames (15W/m) to prevent ice formation. All doors are tested for 100,000 cycle durability (ISO 11684), and optional features include: 1) cargo straps integrated into door panels, 2) door position sensors (connected to the vehicle’s ECU), and 3) explosion-proof door seals for hazardous materials. Contact our product specialists for door load ratings, opening force specifications, and custom configurations.