Abstract: A plastic modular conveyor belt of the type which is capable of traversing lateral curves, with module rows collapsing together at inner sides of curves, has a solid deck over a central portion, but leaving terminal ends of interdigited projections not covered by the deck structure. The solid decks on each module are above the level of the interdigited projections, such that upon traversing curves the projections toward the inside of the curve can slide under the deck of the adjacent module, and the dimensions of the solid decks allow the inner edges of the module rows to collapse substantially fully without limitation by the edges of the decks, which do not lap over one another. The gap between module rows in straight belt travel is mostly closed by the interdigited terminal portions of the projections. In some embodiments the edges of the decks include interdigiting finger structure to provide a more continuous load-supporting surface.