Patent ID: 6112480
Filing Date: 2000-09-05
Classification: E04F

Abstract:
A load bearing module for use with a plurality of other modules in constructing a stairway; the load bearing module including a front panel and a rear panel, both the front and rear panels extending between opposite sides of the module, the front panel and rear panel being mutually positioned for supporting a tread to be mounted on top of the module, at least a lower portion of the front panel and at least an upper portion of the rear panel being shaped for mutual engagement so that the lower portion of the front panel of the module can be attached to the upper portion of a rear panel of an adjacent module with adjacent modules in a stepped configuration, the front and rear panels of the module being spaced apart and rigidly joined by side panels and by bracing panels adjacent each side panel and adjacent the top of the module to from a rigid module so the loads applied to the load bearing module are supported by the panels of the module, the front panel, the rear panel, and the side panels each comprising separate wooden members attached together to form a multipart load bearing module, the bracing panels each being attached to the front and rear panel and to the side panel to which the bracing panel is adjacent.