This type of drawing is often used by engineers and illustrators that specialize in technical drawings. Today, there are several different terms and spellings used when referring to As-Built drawings. Isometric drawings are also called isometric projections. Whatever the case, an As-Built drawing is intended to document the current dimensions and layout of the building, and show the existing conditions “as-is”. Or, over time the building might have undergone several renovations and/or tenant improvements, which were never properly documented and recorded in the building plans. Often, there are complications that arise during construction which force the contractor to make variations from the original plans. There are many reasons why building drawings can be inaccurate. This is a critical distinction, because a constructed building almost never corresponds exactly to the original design drawings. So an As-Built drawing should show the building exactly as it currently is, as opposed to a design drawing which shows the intended or proposed layout of the building. They depend on knowledge of years of experience, common sense, and adoption of past layouts in determining positions of temporary facilities on site. In the architecture and construction industry, “As-Built” refers to a drawing that shows the EXISTING dimensions and conditions of a building, space, or area. Present Practice In construction, field practitioners manually mark up a single site drawing to include major temporary facilities needed on site throughout the duration of the project. As-Built Measurements & Drawings, Draftings & Plans What is an As-Built Plan?
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