Outdoor Entrance Mats for Schools are the first line of defense against sand, salt and grit. An effective outdoor entry mat will be able to perform under a variety of environmental conditions. All outdoor floor mats should dry quickly and should have a primary focus on scraping and providing a nonslip walk surface. Since schools are high traffic areas, it makes sense to choose exterior floor mats that are heavy duty and designed for outside use. Outdoor mats can be recessed into a pit or rest on the top of the walk surface. Surface use matting should be heavy enough or glued in place to prevent wind from moving them around.