Rear doors are side-hinged. The hinges are hidden and provide 130-degree door swing. Optional PROLINE 180-Degree Hinge Kit is available (see PROLINE Solid Rear Door Accessories in this section). Doors can be hinged from left or right. Door includes two -point latching with a flush slotted quarter-turn insert. Standard PROLINE handle and insert options are available for retrofit (see PROLINE Solid Rear Door Accessories in this section). Use PROLINE Frame Shelf or PROLINE Grid Straps to support the ope rator interface. Ground stud and mounting hardware are included. Seamless foam-in-place gasket assures a watertight and dust-tight seal. Covers are Type 304 stainless steel or 16 gauge steel finished with RAL 7035 textured light-gray polyester powder p aint.