Modern guardhouses are manufactured with welded, galvanized steel construction, insulated, include heat and light, have 360 degree visibility, and can also be bullet resistant. These guardhouses keep security guards comfortable as well as secure. The first modern guardhouse was manufactured by Par-Kut International in 1954. In 21st century, guardhouses have provided more options such as exterior floodlights, reflective bullet resistant glass, gun ports, elevated platforms, and highly mobile trailer mounting, anti fatigue floor mats, dimmable interior light and a built in bathroom.