cost of a replacement deck
Redwood lumber hit an all-time high price in 2013, and the current average cost is $15 to $25 per square foot, making this formerly common deck material less popular these days. The estimated total replacement cost is $9,600 to $24,000 for a 16-by-20-foot Redwood deck.his is the most durable option, with an estimated longevity of 30 to 50 years. It is also more expensive, coming in at a total estimated cost of $40 to $80 or more per square foot, or $12,800 to $25,600 to replace a 16-by-20-foot deck.