Caulk Chair displays a unique usage of polystyrene material through the caulking method, often used in traditional construction techniques. There are thousands of chairs in various sizes and creative shapes available nowadays. Caulk Chair is another creative interpretation for this furniture piece. Haphazard patterns formed by caulking technique, resembling a 3d-printed chair The chairs are made from offcut polystyrene which is carved and assembled into functional forms. A caulking gun is then used to lay beads of rubber sealant traditionally used in construction onto the polystyrene. The caulked sealant is both functional and decorative. Caulk Chairs are designed intuitively to form a natural stone-cut appearance Structurally, the sealant creates a strong and flexible coating for the polystyrene transforming the chairs into durable furniture and secondly the act of caulking sealant adds a decorative dimension creating a richly textured surface pattern where every movement of the caulk gun is visible like brushstrokes in a painting.