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Construction Terms and Definitions

The bill of quantities (BOQ) is a contract document that contains a list of materials and workmanship involved in a construction project. It is necessary for properly pricing a project.
A building information modeling (BIM) system is an extensive set of drawings, control systems, etc. that in total provide information about a building including the systems & equipment therein as well as mechanicals, architectural drawings, HVAC, MHE, bills of materials, control systems, dashboard status, etc
A water column is unit of pressure. One Standard Atmosphere is equal to 10.33 meters wc.
A unit of pressure often used to measure the outlet pressure of a pump. The amount of pressure exerted by a column of water of a specified height, for example 30 in. wg.
A unit of pressure equal to 1,000 PSI. Frequently used for compressive and tensile forces on structural steel members and concrete columns.
A vertical datum used for altitude and atmospheric pressure. The average sea level on Earth.
A unit of pressure equal to 1,000,000 PSI. Sometimes used for the elastic modulus of metals, which can be very high pressures.
SI unit of force, the amount of force required to accelerate one kilogram by one meter per second squared.
A unit of pressure. Frequently used to measure the pressure of a working fluid or the strength of the concrete used in a slab.
A Greenfield project refers to new building construction on a new site, and lack constraints imposed by prior work on the site. They typically entail development on a completely vacant site whereby architects can start from scratch. In contrast, a Brownfield project is one that carries contraints imposed by prior work on the site.

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