Target offers the Threshold Stack Sling 5-Piece Dining Set for $322.15. Coupon codes "PATIO10" and "TGTFWFDY" cut it to $284.93. With free shipping, that's $94 off list and the lowest total price we could find. The set includes four patio dining arm chairs and one patio dining table. They each feature a rust-resistant coating. Deal ends March 9.