Building calculators

Outdoor structures with several parts to buy: concrete, roofing, fences and decks.

• Concrete CalculatorWork out the concrete volume for a slab or round column, how many 40, 60 or 80 lb bags to buy, and what they will cost at your store’s price.
• Roofing CalculatorConvert your roof footprint and pitch into roof area, squares, shingle bundles and underlayment rolls, with a waste allowance for gable or hip roofs.
• Fence CalculatorPlan a wood privacy or picket fence with a full material list: posts, rails, pickets and bags of post concrete from your fence length and spacing.
• Deck Board CalculatorWork out how many deck boards and screws to buy from your deck size, board width, gap and joist spacing, and what the boards will cost at your store’s price.