types of drawings

Tradesman viewing trade drawings and electrical drawings

Types of trade drawings

by Dave |May 10, 2017 |0 Comments | Uncategorised | , ,

What are the different types of trade drawings completed throughout the stages of construction?

At Drawable we complete a number of different types of trade drawings depending on the stages of construction.

Trade drawings, sometimes referred to as technical drawings, are drawings or plans used by contractors, engineers and tradesmen that documents specific trade elements for construction. An example of a trade drawing is a drawing made for a plumber with unique symbols to show where all the water lines, sinks, faucets, tubs and toilets are to be located.

The type of trade drawing required depends on the stage of construction and the specific development requirements. Not all developments will require all types of trade drawings.

There are 5 main types of trade drawings completed by Drawable throughout the construction process:

  • Tender Drawings:

Tender Drawings are the first type of trade drawing completed during the construction process. They are the engineers vision for the project used for estimating/pricing the cost of the building to be.

These drawings convey a lot of information about the construction to enable the contractors who are quoting for the job to understand the project completely.

The detailed drawings include exact dimensions, specifications and positions of elements.

The contractors will use the Tender Drawings to create the Tender Package. A Tender Package normally consists of the detailed set of drawings as well as a specification document detailing materials, workmanship and required standards for the entire project.

  • For Approval Drawings:

After the tender stage the drawings become For Approval Drawings. The For Approval Drawings are checked by the client and any required amendments are completed.

These drawings are used to affirm that the contractor has correctly interpreted the overall requirements for the development.

The client will then approve and sign off on the drawings, preferably before the construction commences.

  • For Construction Drawings:

Once the For Approval Drawings are signed off they become the Construction Drawings. Construction Drawings are used by the contractors to complete the actual construction.

These drawings, just like the Tender Drawings, will still include all of the detailed and exact specifications which are required by the contractors to get the job done.

  • Revision Drawings:

During the construction process it may be necessary for changes to be completed on site. Revision drawings are completed to document the various changes completed throughout the construction.

A number of revisions may be required depending on how many changes are completed by the contractors.

If there are no changes during the construction process, Revision Drawings will not be required.

  • As Built Drawings:

As Built Drawings are the final set of trade drawing completed for the development project. These drawings are completed after the construction has been completed. They will document the final details of the construction including the exact dimensions, geometry and location of all elements of the work completed.

Depending on the project specifications set out during the tender process, As Built Drawings are not always required.

The As Built Drawings can be used as a record from which future changes and/or additions can be designed. They can also be used as a starting point for any future developments to the same building.

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