Old Chicago pavers (or "Chicago Common Brick") are reclaimed, durable, natural clay bricks from late 19th to mid-20th century Chicago buildings, known for their unique color variations (pinks, buffs, creams, occasional black), rustic texture, and distinctive "union diamond" stamp, originally used for low-cost structural parts but now prized for their historical character in driveways, patios, and walkways. You can find many homes in south Florida with these reclaimed pavers.
Key Characteristics:
Material: Made from local clay (often from the Chicago River), fired in coal kilns, giving them unique colors and durability.
Color: Ranging from salmon pink, buff-yellow, and light to medium pink, with occasional black spots or deep orange hues.
Texture: Irregular, rough, and highly moisture-absorbent, with chips and weathering adding character.
Markings: Often feature a distinctive "union diamond" stamp from the bricklayers' union.
Dimensions: Typically around 8" long x 3-5/8" deep x 2-1/4" high, though variations exist.
Origin: Reclaimed from demolished Chicago buildings, making them a sustainable, sought-after, and rare material. 
Original Use:
Because they were cheap and abundant, they were used for the less visible parts of buildings, like the backs and sides, to meet fireproofing codes after 1874. 
Why They're Popular Now:
Their rich history, unique appearance, durability, and sustainable nature make them ideal for creating an "ageless appeal" in modern hardscaping
 
Available by the piece, by the half pallet, and by the full pallet!