A shop drawing is a term used by the contractors, supplier, manufacturer, subcontractor or fabricator it is a set of drawing. It is mainly used for fabrication, and it includes elevator, cabinets, windows, appliances and millwork much more. It’s hard to work because it is to be installed perfectly some of its examples are piping, plumbing, electrical, sheet metal ductwork. The owner has to prepare a contract with the suppliers and contractors because they are the producers of shop drawings. It is a set of drawings or a rough sketch made by manufacturer or contractor to show it in construction documents.

This drawing is needed to explain the entire thing, or the plan of the fabrication shop drawing contains more detail than the construction documents. These drawing are used to explain the fabrication work to the crew members of manufacturers and the contractors. It seems to be different from the architect sketching style. The shop drawings focus on primary and particular products and try to keep it clean and clear in a simple format.

Information that should be mentioned in shop drawing:

Information should be provided for both the architect and the engineer so that they can only know the difference between the shop drawing Constructions and specification. Drawings explain the appearance and perspective description in construction drawings.

1.      Changes in construction document: whatever changes are to be done should be mentioned in shop drawing by seeing the original documents.

2.      Fabrication knowledge: shop drawings must include the detail about dimensions, fabrication instructions and manufacturing conventions.

3.      Information related to the installation of fabrication work: most of the manufacturers use to symbolize it or prepare data for it which includes a list of materials.

4.      Samples: most of the fabricators asks for an example with shop drawing so that they can make the color and texture decision without any confusion.

There is the various use of shop drawing it may be utilized by the architect or else by the engineers. For the specification purpose some copies are required and here are some examples of it:

•owner: it may be inspection or file copy

• Architect: file copy

• Author: recorded inspection copy

• Engineer consultant: file copy

• Engineer consultant: copy of inspection

• Supplier: original text or a single copy

Engineers or the architect used to make the corrections in the set of shop drawing the only the number of copies is distributed. It takes a lot of time to make the corrections unless until it is ready for the approval.

Almost every construction project nowadays uses shop drawings. It provides the lot of detailed information related to measurement, specifications, color, texture and much more. It is very much helpful for the business man for the maximum profit. To avoid conflict of future design engineers and architect reviews shop drawings with the help of shop drawing it is easy to make manufacturers and suppliers understand the design because it can predict the structure of the building how long it can last.