Interlocking Timber Cribs

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Interlocking Timber Cribs are designed to replace four and nine-point cribs in mine ceiling heights up to sixteen feet. The support system consists of interlocking timber blocks stacked in layers. Their interlocking capabilities create 100% contact between the layers, increasing strength and stability as the unit length increases.

GMS Interlocking Timbers Crib undergoing failure analysis at a NIOSH testing facility.