Northern Tool offers the Fir Wood Adirondack Chair 2-Pack for $79.99. Coupon code "248531" cuts it to $69.99. Opt for in-store pickup to dodge the $24.49 shipping fee. That's $10 under our mention from a year ago, $20 off list, and the lowest price we've seen. These chairs feature rust-proof hardware and unfinished wood that can be painted or stained.