Pine Hall Brick's Firebrick comply with ASTM C1261 – Standard Specification for Firebox Brick for Residential Fireplaces. They come in a natural buff color in a 4″ x 8″ by 2 1/4″ size and 4″ x 8″ by 1 3/8″. The firebrick have a PCE Value of 17 (2754 degrees F).
