Cantilever decks rely on floor joists that protrude out further than the wall of the house. Typically, these types of structural decks are engineered and require an experienced construction company that specializes in structural decks. The post-and-beam construction relies on posts anchored to piers in the ground. Typical construction is either of a post and beam architecture, or a cantilever construction.
Deck designs can be found in numerous books, do-it-yourself magazines and websites, and from the USDA. Decks can also be covered by a canopy or pergola to control sunlight. Residential decks can be constructed over steep areas or rough ground that is otherwise unusable.
Access may be from the house through doors and from the ground via a stairway. It is generally enclosed by a railing for safety. The deck of a house is generally a wooden platform built above the ground and connected to the main building. US tropical wood imports are rising, partly due to the demand for decking. Much of the logging of these woods, especially teak, mahogany and ipê, is illegal, as outlined in numerous reports by environmental organizations such as Greenpeace, Friends of the Earth and Rainforest Relief. Generally, hardwoods used for decking come from tropical forests. In multi-story commercial construction, the dominant form of deck (including roof deck) construction is composite steel deck. However, newer more modern composites feature a cap or shell that prevents mold and staining. However, composite decking contains harmful chemicals, cannot be refurbished, and despite claims from decking companies, some composite decking still attracts mold. Proponents of composite decking tout this as a much-needed development, as this helps to curb logging of trees for new decks. ĭue to environmental and durability concerns, composite decking (a mixture of two materials, typically wood pulp and recycled material such as plastic bottles or plastic bags) have appeared on the market. Both softwood and hardwood decks need to be finished after installation using either an oil or varnish to prevent weathering, wear, mould, algae and wood-boring insects. Pressure-treating chemicals are known to be toxic. Pressure-treated wood is long lasting and holds up to wet and icy conditions. Decks are often built from pressure-treated wood. Thus, many municipalities and homeowners are turning to hardwoods. More expensive western red cedar was available from western Canada ( British Columbia) but by then, pressure-treated pine had become available.īut even with chemical treatments (such as chromated copper arsenate or CCA), pine decking is not as durable as cedars in an outdoor environment. By the 1960s, western red cedar from the US was declining due to over-logging. Atlantic City and New York City both switched to Western red cedar. Soon, the commercial logging of this tree and clearing of cedar swamps in New Jersey caused a decline in the availability of decking. Atlantic City built the first coastal boardwalk in the United States, originally constructed of the Atlantic white cedar. These include Atlantic white cedar, redwood and western red cedar (redcedar). Historically, the softwoods used for decking were logged from old growth forests. WPCs have different brands like NewTechWood, Azek, Ecornboard etc. Artificial decking products are often called " wood-plastic composites" (WPC). Recycled planks may be high-density polyethylene (HDPE), polystyrene (PS) and PET plastic as well as mixed plastics and wood fiber (often called "composite" lumber). Lumber may be western red cedar, teak, mahogany, ipê, reclaimed and recycled ulin and other hardwoods. Decks are made from treated lumber, composite lumber, composite material, and aluminum.
Wood or timber decking can be used in a number of ways: as part of garden landscaping, to extend the living area of a house, and as an alternative to stone-based features such as patios. It is known as the "roof deck", and they may be either level (for a "flat" rooftop) or sloped. "Roof deck" refers to the flat layer of construction materials to which the weather impervious layers are attached to a form a roof. A level architectural deck may be intended for use by people, e.g., what in the UK is usually called a decked patio. The term is a generalization from the deck of a ship. In architecture, a deck is a flat surface capable of supporting weight, similar to a floor, but typically constructed outdoors, often elevated from the ground, and usually connected to a building. The decking is selangan batu, a Malaysian timber. A deck in the backyard of a suburban house A high level corridor deck in the backyard of a suburban house in Australia A high level deck in the backyard of a suburban house in Australia.
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