NZBE is published quarterly in February, May, August and November of each year. It contains the costs of the various parts of a building - residential and light commercial. Grouped under traditional trade headings, construction cost unit rates for items of Excavation and Siteworks, Concrete Work, Reinforcing Steel, Structural Steel, Brickwork, Concrete Masonry, Carpentry, Joinery, Roofing, Plumbing, Drainage, Electrical, Solid Plaster, Glazing, Painting and Specialist Finishes, and Floor Coverings are set by practicing cost consultant quantity surveyors and are updated as required for each issue.