GoBox Front Loading Insulated Carrier With 9 Rails: Front loading 40x60 carrier. Nine integral rails hold 60 x 40cm bakery pans, sheet pans and trays.: Front-loading bakery carriers EPP4060F9R are available with 9 molded-in rails. These carriers are designed with extended wide rails specifically to hold 60 x 40 cm sheet pans and trays in place during transport, without worry of them falling or caving through.