Cost To Build A Second Floor Deck

New deck installation cost.
Cost to build a second floor deck. Because of the complexity of the structure and additional supports. An elevated deck will cost slightly more for the material since you ll need longer support beams more fasteners and supports and other extras. Adding stairs to a second story deck will increase the cost by about 1 500 on average. The average deck that most homeowners construct is 10 12 or 120 sq ft.
The largest additional expense is in the labor because the crew will need equipment such as scaffolding to build the deck and construction will be more time consuming. The cost to build a deck with pressure treated wood hardwood or composite is about 25 per square foot for both materials and installation the final price of your deck depends on the materials used size level built on and any extra. Increase the size to 16 x 20 feet and the price. This deck is more complex to build and needs to incorporate a number of safety features including railings.
Deck railings are another cost factor and choosing a more expensive railing option will affect the cost of the deck. Mid level quality board material such as trex or another composite will run about 4 200 the most expensive materials are azec pvc 4850 and cedar redwood 4900. See the table below which shows how much each type of decking costs per square. A low budget deck of this size made of pt wood costs an average of 2 400.
The average homeowner spends 2 200 to build a 10x10 foot deck 6 160 to build a 14x20 deck and 8 800 to build a 20x20 deck. Stairs are a costly addition to a deck so consider that adding them will increase the overall cost.