Stairs – Installing deck stairs will cost $20 to $30 per linear foot, plus $80 to $160 for the concrete stairway footing. Railing – Adding a deck railing costs $20 to $60 per linear foot for wood or vinyl. Gravel below an elevated or second-story deck prevents weeds and promotes rainwater drainage. Gravel base – Pea gravel costs $0.85 to $2.80 per square foot delivered and installed. Yard drainage is essential to prevent water pooling that can rot the deck supports.Įlevated deck drainage – Fees increase for an under-deck drainage and downspout system under a second-story deck. Ground-level deck drainage – A new drainage system installation costs $1,000 to $4,000 minimum. Contractors shouldn't bury wooden deck posts that can rot in the ground. Posts – In colder climates, concrete footers should go below the frost line. Solid composite decking is stronger but more expensive.įastener type – Traditional fasteners are cost-effective and quick, while hidden ones offer a cleaner look but increase installation time and cost. hollow boards – Hollow composite decking is robust enough for most applications. uncapped – Capped composites have an outer layer for better elemental resistance, making them more expensive than uncapped decking. Complex designs and wood-like textures cost the most, while basic colors are the cheapest.Ĭapped vs. *Prices for attached ground-level platform decks and elevated decks, including a base.ĭesign – Color and texture impact project costs. Attached multi-level decks create several dining and lounging zones to expand your outdoor entertainment options. This decking needs large pillars and reinforced foundations.Ī multi-level deck is the most expensive type and best suits 2+ story homes. This deck type has a reinforced concrete base, and building codes require railings too.Ī second-story deck is popular since it creates a covered porch underneath. Many states don't require permits for such decks because they aren't attached to the home.Īn elevated deck stands at least 3' above ground but below the second story. This lightweight decking typically only has gravel and concrete blocks supporting it. Prices rise depending on the number of steps and if reinforced footers are necessary.Ī detached or floating deck requires no railings, stairs, or deep footers extending below the frost line. *Price includes the substructure and decking surface.Ī ground-level or platform deck is typically less than 30" to 36" tall, attached to the home at the back door, and has optional railings. Cost of composite decking by type Deck design typeĭetached / floating (Freestanding, no railings, no stairs)
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