Home / Aggregates / 1B Limestone 1B Limestone 1B Limestone is a crushed limestone, approximately 1/4″ to 1/2″ in diameter. It is most commonly used for driveways, fire pits, and pathways. Delivery: 1 ton minimum plus $85/hr delivery fee. SKU: 1BLime Category: Aggregates Tag: aggregate Product ID: 29532 Description Description Gravel Calculator Inch Calculator Related products Brown Mulch River Stone 1B | Pea Gravel Calcium Chloride River Gravel 2B