Interior view showing the best manner to fix Hayward's Pavement and Stallboard Lights to throw the maximum of light into basements.

The Pavement Lights are in two parts, and have a grooved butt joint, or two flanges can come together; in either case a light H girder is fixed transversely from front curb to flooring, so as to avoid any girders along back of Lights, which unfortunately is so common and is generally a serious obstruction to the light.

The ventilation through Stallboards by Hayward's Standard Hopper Ventilator, which gives simplicity of construction and security from breaking into premises, as the framing of Stallboards is continued through the opening portion, and when closed presents an even and flush appearance, as if there was no opening at all.