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What do Standard / Medium / Heavy Mean? Standard / Medium / and Heavy as they relate to load ratings are provided as a subjective guideline in making a preliminary narrowing of product selection for a given application. ”Standard” is meant to suggest for use in light duty uses such as typical office or other spaces where pedestrian traffic or occasional rubber-wheeled traffic like mail carts and light-weight cleaning equipment, luggage, etc. is the normal traffic. The systems in this category are usually comprised of extruded aluminum rails, either surface or blockout-mounted, into which a light duty elastomeric insert is installed. “Medium” suggests applications where occasional heavier maintenance equipment (scissor lifts, motorized cleaning equipment etc.) would be added to the standard traffic. The systems in this category are comprised of slightly heavier aluminum extrusions, for either surface or blockout mounting, with heavier extruded rubber inserts, or of lightweight all-aluminum construction. “Heavy” is for applications where truly heavy loads (forklifts and other vehicles), or high-point load vehicles (gurneys, mobile medical equipment, coin carts, materials handling equipment, etc.) are the norm. These systems are heavy-duty, all-aluminum extrusions of extraordinary quality and fit. They are capable of multi-directional movements and are also available in surface or blockout mounted variations. In these cases, since the actual loads and pressures the joint system feels are directly related to the type of wheels, combined with the gross weight of the vehicle, we provide detailed loading information as can be seen on the product page for the FS 110 system. We are working to provide the information in the format seen on the FS 110 page for all our heavy duty profiles but are not quite there yet. If there is a model that appears more suitable to your application that does not have enough information we would be pleased to assist in comparing a particular vehicle load to any of our systems. This Interior Floor Expansion Joint Checklist is a handy way of communicating your needs to us.
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