Shop Drawings

Very often the consultant will request shop drawings for certain components during the construction process. These are normally prepared by the contractor, subcontractor, manufacturer, or fabricator, depending on the element being manufactured. Shop drawings are typically required for prefabricated components such as windows, precast components, elevators, structural steel, trusses, or millwork. The drawings represent the manufacturer's or contractor's interpretation of the consultant's drawing and are thus expected to show more specific detail than normally provided by the construction documents. They are drawn to explain the fabrication and/or installation of the required product. The primary emphasis of a shop drawing always relates to the particular product to be manufactured or its installation and excludes information regarding other products unless integration with another product is necessary.

Shop drawings should include information for the consultant to compare to the specifications and contract documents. They should also include dimensions, manufacturing conventions, and special fab-

Figure 6.23C Examples of millwork drawings and details.

rication instructions and should address the appearance, performance, and prescriptive descriptions in the specifications and construction drawings. Shop drawings are designed to assist the consultant in gaining approval of the product and thus should be precise, clear, and as complete as possible. Shop drawings are normally accompanied by samples, catalogs, and any other pertinent information. Any proposed changes should be clearly shown on the shop drawings for the consultant's approval. Of note, shop drawings are not typically produced by the consultant under the contract with the owner.

Figure 6.24 Examples of various types of construction details.

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