Barrels Online is a cooperage and online retailer specializing in handcrafted American white oak barrels and related products. The company draws on traditional cooperage techniques, with skilled artisans hand-assembling barrels through processes such as precision jointing, steam bending, and oak charring. Its aging barrels are designed for home use and other craft applications, helping customers age whiskey, bourbon, rum, tequila, wine, beer, brandy, and other spirits. Options range from small barrels to larger sizes, including engraved aging barrels from 1 to 20 liters, with choices such as black, brass, or galvanized hoops and dark-stained finishes.

Barrels Online also offers custom engraving and personalized products, including wedding guest-book barrels, engraved gifts, custom lids, bar signs, and rustic décor for homes and businesses. Its broader selection includes Saint Bernard barrels, upright oak barrels with removable lids for kombucha or vinegar, barrel-stave furniture and wall art, infusion sticks, gift cards, and barrel parts and accessories.