Dolly for transporting sheet materials

A dolly, comprising:

• a flat, horizontally disposed base plate supported at its corners by wheels;
• a first support wall mounted to said flat base plate near a first end thereof in upstanding relation thereto, said first support wall disposed in a vertical plane that is transversely disposed relative to a longitudinal axis of said base plate;
• a second support wall mounted to said flat base plate near a second end thereof in upstanding relation thereto in parallel and longitudinally-spaced apart relation with said first support wall;
• a first brace for supporting said first support wall;
• a second brace for supporting said second support wall;
• said first and second braces being mounted on said base plate in coincidence with said longitudinal axis of symmetry of said base plate in perpendicular relation to said first and second support walls, respectively;
• said first support wall having a vertical back edge that extends a first predetermined height to an uppermost end and a vertical front edge, parallel to said vertical back edge, that extends to a second predetermined height that is less than the first predetermined height of said vertical back edge;
• a flat formed in a horizontal plane in said first support wall at said uppermost end;
• said first support wall including a horizontal step extending a predetermined distance from an uppermost end of said vertical front edge towards said vertical back edge;
• said first support wall including an inclined edge that extends from an inboard end of said horizontal step to an outboard end of said flat;
• said second support wall having a vertical back edge that extends said first predetermined height to an uppermost end of said second support wall and a vertical front edge, parallel to said vertical back edge of said second support wall, that extends to said second predetermined height;
• a flat formed in a horizontal plane in said second support wall at said uppermost end of said second support wall;
• said second support wall including a horizontal step extending a predetermined distance from an uppermost end of said vertical front edge of said second support wall toward said back edge of said second support wall;
• and
• said second support wall including an inclined edge that extends from an inboard end of said horizontal step of said second support wall to an outboard end of said flat formed in said uppermost end of said second support wall.