Northern Tool offers the Fir Wood Adirondack Chair 2-Pack for $89.99. Coupon code "251259" cuts it to $79.99. Opt for in-store pickup to dodge the $24.49 shipping fee. That's $10 off list, tied with our mention from three weeks ago, and the lowest price we could find. These chairs feature rust-proof hardware and unfinished wood that can be painted or stained. Deal ends April 11.