from wood and agricultural fibers. This means it has a much denser makeup and smoother surface. Another advantage MDF has over lumber is that it offers larger maximum piece dimensions. This means that lengths of up to 16 feet are available with full thickness. There are no knots or splits to deal with and no warping. It is also lighter to work with (20
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percent lighter) and a lot easier to caulk. What's more, because trim is something that buyers look for in a new home, the advantages of MDF are something contractors and builders are very much aware of. In addition to trim, MDF is popular for use in cabinets and often takes center stage in home theatres. High-end speaker cabinets, for example,
are 100 percent MDF constructions because it is dense, rigid and acoustically inert. A properly designed MDF speaker cabinet will focus the maximum "acoustic energy" at the listener, while keeping vibration transmission to a minimum. According to the Composite Panel Association, while MDF moulding is widely available pre-primed, it can easily be
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