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Wood / Air dried oak beams / Oak beam 20×20 cm
Dry, French oak beams suitable as building and construction timber
Questions about Oak beam 20×20 cm?
Whatsapp usAn oak beam with a head size of 20×20 cm or 200×200 mm comes from an imposing oak tree. Such a tree requires about 150 years of growth time. Such beams are available in our range and are wind-dried for approximately 5 to 7 years. The wood has a beautiful straight grain, making it excellent for use as a construction beam in renovation projects or when building new homes.
In general, the rule of thumb is that you can count 5 cm for the height of the header gauge per length meter of span. Using this guideline, a 20×20 cm oak beam would be sufficiently strong for a 4 meter span. Always have a structural engineer calculate the exact dimensions required. An alternative to the standard 20×20 cm size is the 18×18 cm beam. Such a beam contains 20% less wood and is therefore 20% lower priced.
The weight of an oak beam varies and after several years of drying process, is usually between 750 and 850 kg per cubic meter. The volumetric mass of oak is primarily affected by the moisture content. The longer a beam dries, the lower the moisture percentage in the wood. So a dry oak beam always weighs less than a freshly cut oak beam, which can weigh as much as more than 1,000 kg per cubic meter. Second, the density of a beam depends on the growth area; a beam with fine grain may be heavier than one cut from a tree that has grown faster. Here are some indications for weight: 20×20 cm / approximately 30 to 35 kg per linear meter 25×25 cm / approximately 48 to 55 kg per linear meter Want to know more useful wood information?
Oak beams with a head size of 20×20 cm are also often referred to as 200×200 mm. Such dimensions are suitable for a variety of building applications, including oak porches, outbuildings, canopies or pergolas.
Dry oak has some important advantages. Fresh oak initially contains 30 to 50% moisture, which can cause deformation in a project. Unlike fresh wood, wind-dried oak undergoes a process of at least five to 10 years of drying, resulting in more stable wood and also with a lower weight. It is less prone to deformation and cracking, and offers better protection against insects and mold.
The price of a 20×20 cm oak beam depends greatly on the number of years the wood has dried. The longer the wood is dried, the higher the quality and thus the price level. Secondly, the length matters, the longer the beam the scarcer and therefore more pricey. A wind-dried oak beam is usually pricier than freshly sawn oak. Despite a higher price point than fresh oak, the benefits may justify the investment for those who value quality or aesthetics. For a free customized quote, please contact us through this page.
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