Lowe's promo code: "Save the Tax Event on Patio Furniture, Sheds, Exterior Stains and In-Stock Pressure Treated Lumber (Excludes Grey Pressure Treated Lumber). Total purchase price will be reduced the equivalent of the Government sales tax (Ontario 13%; BC 12%; Saskatchewan 11%). Prices shown do not reflect discount. Government sales tax will be added to your purchase at the register. Example: In Ontario: $100 purchase (total before HST) - $11.51 (Discount) = $88.49 + 13% HST = $99.99 (equal or less than purchase amount before HST). Online Discount 11.5% with PROMO CODE: SALE. Alberta residents receive 10% off. Offer valid from Thursday, April 20 through to Sunday, April 23, 2017. Excludes gift cards and all services. Spend amounts calculated before tax and after applicable discounts. Can’t be used in conjunction with any other offer, coupon/discount (including, but not limited to Lowe’s consumer credit discount; 5% Lowe’s business credit discounts; Lowe’s employee discounts; Lowe’s Price Match Guarantee; Lowe‘s volume discount programs such as Quote Support Program 'QSP'; government contract pricing; or any other special pricing/discount programs). Offer valid in-store and on Lowes.ca. Discount taken off the lowest ticketed price. Not valid on: Clearance items; previous sales; multiple transactions; purchase of services (including, but not limited to truck rental, labour, tool rentals, and delivery charges), installation, contractor discount or extended protection plans; or gift cards."