How are glass panels treated in terms of wall space according to wiring standards?

In wiring standards, glass panels are treated the same as any interior or exterior door when it comes to determining wall space. This means that if there is a glass panel present, it does not contribute to the total wall space available for placing outlets and switches. The rationale behind this is that both doors and glass panels interrupt the continuous wall surface and cannot be used effectively for mounting electrical devices.

This treatment ensures that electrical installations are safe and comply with regulations, as outlets cannot be placed where they might be obstructed or where their installation would not provide functional access. Understanding this classification helps electrical professionals assess the available wall areas properly and ensures compliance with relevant codes.

Other options such as considering glass panels as extra wall space or only in commercial applications do not accurately reflect standard wiring practices. Such distinctions are important to ensure clarity in residential electrical installations.