 The bricks were Yellow Stock bricks, the colour produced by adding up to 17% chalk to the clay.The brick were graded as "Firsts", "Seconds" (used for facings), "Thirds" (used for internals), "Roughs" (used for hardcore) and "Chuffs" that were unusable.Other later brickfields were at Barn Meadow (today's Sholden Road) which produced reds, Wickenden Brickyard by Cooling Road, and Frindsbury Brickyard owned by the West family (closed in 1931).