This Guide is the culmination of hundreds of hours of effort by volunteers from NISD. As the weld is the most expensive material in the finished support structure, it is very important that detailers show the correct weld symbols on the completed shop drawing. In this Guide, we have tried to give a basic understanding of the elements of the welding symbol, and the weld symbol to be used to achieve the desired weld.

The Guide is not intended to replace the American Welding Society, ASIC or Canadian Welding Bureau texts, but instead to act as first reference, before consulting other texts. In many cases, fabricators have their own set of standards regarding welding, and these would take precedence over the Detailer's Guide to Welding.

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