Different countries and areas have their own tolerance standards. Different types of aluminum extrusion products may also have different tolerance requirements. The achievable tolerance depends on several factors. One of the biggest determinants is the complexity of the profile – the more complex the profile, the more difficult it is to achieve tight tolerances. Other factors are the intended application of the extrusion and the extrusion method used. At FONNOV, we attain tolerance for aluminum extrusion profiles based on various national standards. These standards are for architectural and industrial applications respectively.