About Deck Lumber

Deck lumber comes in many more varieties and options that can replace an old deck or repair one that may just need a few new boards. This article touches upon the types of lumber and composites available to install a new deck or replace an old one. Decisions on what kind of deck lumber to purchase are first determined by budget, as costs can vary widely depending on type of materials.

Function

Deck lumber can be chosen for aesthetic or functional purposes. Untreated lumber, which may be chosen because of the way it looks or matches the historical architecture of the house, is usually stained, painted and waterproofed by hand after installation. Lumber chosen for long lasting wear and tear and as a protective rather than aesthetic surface, can be found in pressure treated or compressed materials and recycled plastic.

Types

Wood deck lumber, such as cedar, is best for planters and railings. For deck floors, pine or cherry are good choices. They should be treated if installed in geographic areas of the country that are humid most of the year, like Florida. Untreated wood, in the right kind of weather environment, can last several decades. Look for lumber without splinters, cracks or knots.
For composite deck lumber, choices range from recycled plastic to pressure treated materials that resemble wood but are not made from wood, such as Trex to veneers.

Features

Untreated wood decks can be left in their natural state or stained or painted and then waterproofed. Composites come in whites, off-whites and shades of gray. Deck railings, planters, posts and columns come in wood, composites and hollow plastic.

Size

Boards should be less than 6" in width and 2" thickness. The length ranges from 6 to 12 feet and can be cut accordingly. Railings can be purchased in 6 to 8 foot sections.

Considerations

The type of deck lumber you purchase will be determined by budget, location of deck, whether or not the deck is covered and longevity, that is, how long you want the deck to last. Another consideration is aesthetics and whether or not you want a natural wood look or are more interested in durability. Pressure treated and composite decks will last longer than natural wood and are generally more durable. Another consideration is whether or not you'll replace or install a deck on your own or hire someone. If you hire someone, you can find a contractor who will do it for less than a home and garden store which subcontracts the work. Be sure to get a warranty that covers materials and length of time the deck is expected to last.