* Selecting a product from a General Shale plant nearest your construction site can significantly reduce your cost of delivery.

CAMBRIDGE KEYSTONES

Keystones, available in several shapes and sizes, are used for topping off arches, or giving extra elegance to windows and entrances.
NAME DIMENSIONS SKU
KEY 10S 10-1/4″ H x 3-1/2″ W x 8′ x 6′ L 6155024648
KEY 12S 12-1/4″ H x 3-1/2″ W x 8′ x 6′ L 6155024651
KEY 12R 12-1/4″ H x 3-1/2″ W x 8′ x 6′ L 6155024650
KEY 10R 10-1/4” H x 3-1/2” W x 8” x 6” L 6155024647

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