Mat cutting apparatus

A picture mat cutting apparatus comprising:

• a baseboard having a flat upper surface for supporting matting material thereon, a straight back edge and oppositely disposed parallel side edges perpendicular to said back edge, parallel sidewalls attached to each side edge and extending upwardly above the board upper surface, a first L-shaped support arm having one end thereof pivotally secured to the outside surface of one sidewall and the free end extending over said sidewall above the board upper surface, a second substantially identical oppositely disposed L-shaped support arm having one end pivotally secured to the outside surface of the opposite sidewall and extending over said sidewall above the board upper surface, a cutter guide rail means comprising upper and lower elongated flat leaves joined along the edge to form a V-shaped cross-section and disposed parallel to the back edge of the board, the upper leaf being attached at each end to the free ends of the support arms and movable therewith so that the lower leaf is contactable with the board upper surface and the rear edge of said lower leaf extends rearwardly and the edge of the upper leaf extends upwardly and rearwardly when the guide rail is pivoted downwardly toward the board upper surface, cutting means slidably attachable to the upper leaf edge and having a cutting blade on the lower edge thereof.