Lite mine roof support crib and method

A mine roof support crib comprising:

• a plurality of chocks that are connected together through notches in the chocks to form at least three planes and able to support at least five tons of load, each notch having only one edge, each chock has a primary piece having a top and a bottom, a first block and a second block disposed on the top and bottom, respectively, and means for attaching the first block and second block to the primary piece, an outward surface of the first block and second block defining the edge of a first notch and of a second notch of each chock, each notch has either a spacer or a bar pin or a staple defining a receive zone with the edge of the corresponding notch, the receive zone receiving a notch of an adjacent chock.

A mine roof support crib comprising:

• a plurality of chocks that are connected together through notches in the chocks to form at least three planes and are able to support at least five tons of load wherein each chock having a primary piece having a top and a bottom, a first block and a second block disposed on the top and bottom, respectively, and means for attaching the first block and second block to the primary piece, the primary piece has a first end and a second end and a top surface and a bottom surface and the first block and second block are in spaced relationship with the first end and second end of the top surface, and the first end and second end of the bottom surface, respectively, to form notches in the chock with each notch having an edge defined by the respective block, to receive a notch from an adjacent chock, each notch has either a spacer or a bar pin or a staple defining a receive zone with the edge of the corresponding notch, the receive zone receiving a notch of an adjacent chock.