- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 04 May 2020
Purchase orders in construction
A purchase order (PO) is a document that is issued by a buyer to a seller, indicating their intention to purchase certain products or services. On construction projects, POs are typically used to control the purchasing of products and services from suppliers, and are then retained for record keeping.
A PO may include the following information:
- The PO number.
- A description of the products and / or service being purchased.
- Technical details if required.
- Any discounts to be applied.
- Agreed prices.
- Payment terms.
- Shipment dates.
Invoices are documents issued by a suppliers to buyers, summarising the products or services that they have purchased (or have agreed to purchase). Invoices invoice will usually reference a PO number (if there has been one) to assist with record keeping and avoid confusion.
NB A blanket purchase order is: 'A special purchase order typically designed to leverage repetitive requirements and emergency repairs involving low value goods and services, while reducing the administrative workload.' Ref UN Procurement Practitioner's Handbook, produced by the Interagency Procurement Working Group (IAPWG) in 2006 and updated in 2012
 Related articles on Designing Buildings Wiki
Featured articles and news
A low tech, easy to use method of extinguishing small fires.
How can these valued spaces be reused?
Partnership avoids the need for listed building consent.
Connecting building design from inception to completion to operations.
Gregor Harvie predicts interoperability will be construction’s Uber moment.
Expert commentary and insight.
Guidance offered for stained glass window maintenance.
Define need before determining viability.
Framework examines social value of projects.
RfX or Request for [fill in the blank].
Organisation establishes Equality, Diversity, Inclusion taskforce.
Government announces plans for new building projects.
Outsourcing method to procure and manage supplies.
Joint support of Local Authority Historic Environment and Conservation Services.
The Chesapeake Bay Bridge-Tunnel is an outstanding achievement.