Deck cost per square foot. Homeowners across the US, report spending $20-40 per square foot on building a deck. This is about $6,000-12,000 for a 300 sq.ft. deck.
Decks R Us reports the average pressure treated deck costs $27-$32 per square foot whereas a synthetic deck will cost $38-$45 per square foot. Get an .
Average cost to build a deck is about $10630 (16'x20'). Find here detailed information about build deck costs.
The cost to Install Wood Decking starts at $8.50 – $11.06 per square foot, but can vary. Layout and install 2"x6" wood decking on existing deck support framing using exterior grade screws.. Average Cost per Square Foot, $8.51, $11.07 .
The average cost of a new deck is $20-$50 per square ft. Size, height, stairs, railings, flooring material, and design complexity contribute to the cost.