how much squad footage of wood for sit take to cover the deck? Round to nearest hundredth. 20.6ft by 11.5 ft

The area of the surface can be calculated as:
A = Width*Length
From the problem, we identify:
Width = 11.5 ft
Length = 20.6 ft
Then, the area is:
A = 11.5 ft * 20.6 ft
A = 236.9 ft²