SPALL

A stone fragment that has split or broken off the face of a stone, either by the force of a blow or by weathering. Sizes may vary from chip size to one and two man stones. Spalls are primarily used for taking up large voids in rough rubble or mosaic patterns.

SPLIT FACE (SAWED BED)

Usually sawed on the stone bed and split by hand or machine so that the face of the stone exhibits the natural quarry texture.

TOLERANCE

Dimensional allowance made for the inability of men and machines to fabricate a product of exact dimensions.
Sequoia flagstone

TREAD

A flat stone used as the top walking surface on a step.
Canyon creek 2

VENEER STONE

Any stone used as a decorative facing material which is not meant to be load bearing.

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