Case Studies

A Short and 'Real-Life' Case Study About BIM


Building Information Modeling (BIM) is making possible automatically generated, fully automated takeoff and estimating from architectural plans and specifications.

Here is a “real-life” case study to validate that statement.

Recently, a demonstration was observed whereby architectural drawings utilizing BIM software (BIM product models) were used to bid a four-story office building project involved glass, architectural aluminum curtainwall, window wall and medium stile entrances, hardware by others as well as fabrication and installation labor. In other words, this covered the takeoff, estimating and bidding process used by a glass and glazing subcontractor to bid a project to a general contractor.

The value of this project was $445,000.

Most glass and glazing subcontractors who were surveyed said it would take two to three days (three days was the most prevalent response) to takeoff and estimate the project, as well as prepare a proposal to a general contractor.

Using computer takeoff and estimating software, in conjunction with the BIM architectural drawings, it took a total of four minutes to perform all bidding functions including a proposal to the general contractors. That’s four minutes time compared to 1,440 minutes (24 total hours or three days).

Here’s a prediction:

BIM will be the most significant new technology in building construction ever!

Contact Richard at [email protected]

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