WOODBest for authenticity. Most is pressure-treated pine, but pricier options include cedar, redwood, and tropical hardwoods.
But wood tends to change color, crack, and absorb stains if it isn’t restained. Hardwoods and exotic choices can get pricey.
Price About $225 to $825 or more per 100 square feet.
COMPOSITEBest for the look of wood without the need to stain. It’s made of plastic and wood fiber and can be stained to change its look.
But some offer far less resistance to slips, stains, and mildew. Most choices are heavier and pricier than the usual pine.
Price About $425 to $650 per 100 square feet.
PLASTICBest for resisting the elements without staining. Choices include PVC and polyethylene. It’s also lightweight.
But some can look cheap, some is slippery, and all sagged more than wood.
Price About $525 to $625 per 100 square feet.
ALUMINUMBest for toughness, rigidity, and slip resistance. Its color should last indefinitely, and its textured finish added traction in our
tests.
But it’s pricey, and no one will mistake it for wood.
Price About $700 per 100 square feet.