Construction Glossary

An SBA program (up to nine years) that gives federal-contracting help to small firms owned by socially and economically disadvantaged people. Certified firms can win contracts set aside just for 8(a) companies.

The money a company owes to its subcontractors and suppliers for work already done but not yet paid.

The money owed to a contractor by the owner for work that has been completed and billed but not yet collected.

The organization that writes the industry standards for how concrete is designed and built.

A drop ceiling with tiles that absorb sound to keep rooms quieter.

The federal law that requires buildings to be accessible to people with disabilities.

An official written change to the bid documents issued before bids are due.

A third party added to someone else's insurance policy so they're also covered.

An optional add-on item priced separately so the owner can include it if budget allows.

A chemical added to concrete mix to change how it behaves — making it set faster, slower, easier to pour, or stronger.

The main trade association representing general contractors in the U.S.

Sand, gravel, or crushed stone used in concrete, asphalt, and as a base layer in construction.