Board Food Tray #4. 225Lx150Wx45D. The #4 tray is considered the perfect size for a single serve meal, perhaps a burger and a side of chips. The range is light and sturdy, designed for stand up and sit down meals at food markets. The funky, tapered design presents food in an insulated e-flute board and a favourite among food trucks and the like. Made from recyclable materials. Recyclable.