Which color is used to mark the boundary of a work area?

Which color is used to mark the boundary of a work area?

• A. Red
• B. White
• C. Blue
• D. Green

Answer: (B)

White is used to mark the boundary of the work area. On landscaping and construction sites, color-coded markings help everyone understand zones quickly. White boundaries clearly delineate the active work space so people and equipment stay within the designated area and spectators or non-work activities stay outside. It’s chosen because it contrasts well against soil, turf, and pavement and isn’t itself a hazard signal, unlike red or orange which indicate danger or caution. Blue and green serve other purposes, such as information or safety-related cues, so they aren’t typically used to define the work boundary.

White is used to mark the boundary of the work area. On landscaping and construction sites, color-coded markings help everyone understand zones quickly. White boundaries clearly delineate the active work space so people and equipment stay within the designated area and spectators or non-work activities stay outside. It’s chosen because it contrasts well against soil, turf, and pavement and isn’t itself a hazard signal, unlike red or orange which indicate danger or caution. Blue and green serve other purposes, such as information or safety-related cues, so they aren’t typically used to define the work boundary.