Guidance on Football Goal post Construction and Installation
According to the rules of association football, which are updated and published each year by FIFA, goalposts may be constructed from only approved materials. In the main, however, this is interpreted that football goalposts are to be made from wood or metal. Let's examine what goes into the construction of football posts and the latest advice on how to install them.
Although wooden goalposts are usually painted white in order to make them stand out visually and to protect them from the elements, aluminium and other metals - which are also used to form these sporting structures - tend to be powder coated. Powder coating is an industrial process which forms a layer that is hard and which does not scratch easily. A further advantage of using powder coating on goalposts is that it creates a uniform colour. If paint is applied to goalposts then it is liable to fade on sections which are more exposed to sunlight that others. However, with a coating that is formed from powder coating, this is much less of a problem.
In order for a set of goalposts to stand erect for a long time after it has been installed, FIFA recommends that a concrete foundation is made for each of the upright sections. Their guidance also states that a square foundation that measures 50 cm by 50 cm is most appropriate. The foundation should also be 50 cm deep, tapering slightly as it approaches the playing surface. Into this foundation, the goalpost should be sunk to a depth of at least 30 cm. With the foundations constructed to this width and depth, a goalpost should remain fully upright no matter how much it is knocked into by footballs and players alike.
The two metals which are most common for the construction of goalposts are heavy gauge steel and aluminium. So far as players are concerned there is little difference between these two construction materials. Having said that, there are significant benefits for selecting one over the other depending on the chosen site. Steel is a much heavier material that aluminium and moving goalposts to the football pitch where they will be installed is often more costly than shifting an aluminium set. Nevertheless, steel forms an extremely robust goalpost and crossbar. This makes it the best choice for a civic amenity where the posts might be swung from or abused in some way. As such, aluminium tends to be the preferred metal for professional football pitches or those used at club level.
For more information, contact a business such as Adda Flagpoles Pty Ltd.