In the most common vehicle restraints installations the restraint back plate is anchored to the face of the poured concrete foundation. A concrete block or brick foundation is not strong enough to anchor the restraint into position hence the need for the surface mounting box. A concrete slab is poured tight to the foundation wall and the surface mounting box is bolted down into the concrete slab. With the surface mounting box bolted into position the vehicle restraint is then installed.
Contact a Pentalift Sales Representative for more information.