In panel construction, if visible from the outside, the most often encountered problem is clean corner joints. A miter joint is the most widely practiced joint because it is the fastest way. A welded corner joint always has a problem in finishing by painting or powder coating. Therefore such detailing is often used in “non-critical appearance” applications. Such as internal structures, large size panellings where the joint becomes insignificant in view of overall appearance.
Often, when there are radii involved in both horizontal and vertical planes, an add-on corner piece is the most sought-after option. Here the skill of alignment and joint coverage in welding is very important. There are other practices for undistorted corner joints are shown as below.