1 below shows a sample as-built drawing of a piping isometric.Īs-built documentation shall comprise the data that is critical for the safe and efficient operation of the plant or facility after commissioning and handover. As-built drawings are also known as record drawings. In a single sentence, an as-built drawing can be defined as an engineering drawing that informs any design change/deviation from the original design document. An as-built drawing is an engineering document that depicts each and every modification, field change, shop drawing change, pipe routing change, extra work, etc. Preparing as-built drawings is one of the main processes of every construction project. In this article, we will learn the importance of piping as-built drawings. Because of these red hand marks over the original design drawing sheet, as-built drawings are also known as red-line drawings. Those changes or modifications are marked on the original drawing with red colors to prepare as-built drawings. ![]() ![]() During actual plant construction, there may be many deviations from the original design drawings. As-built drawings are engineering drawings that depict the actual physical characteristics of a plant, building, or structure as it exists once the construction is complete.
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