Most choices are heavier and more expensive than pressure-treated ... around $4 per linear foot. CertainTeed is a large manufacturer of vinyl home products, including siding and decking.

Standard 2X6 cedar decking boards cost between $4 and $8 psf. Pressure-treaded softwood (usually pine) is the most economical choice. It costs from $2 to $8 psf. The high cost of composite decking ...