Abstract: The invention is directed to a modular furniture design having contoured ballast chamber for directing the weighting from a peripheral weighting orientation to a peripheral weighting configuration. The furniture may further comprise a base and a top, the base having a one piece molded generally hollow body comprising a contoured ballast compartment having a closable opening and a plurality of sidewalls forming legs supporting a top. A top attachment may be a chair, table top or similar furniture piece. The chair may be adapted for sitting at a table, lounging or reading with or without arms. An attachable cushion is fastened to the chair to provide a color coordinated seat attached by tamper resistant fastener assembly comprising tabs mounted under the seat of the cushion extending into and engaging seat holes in the seating surface of the chair and held in place by a threaded fastener extending through the back rest of the chair engaging a threaded insert in the cushion.