What is the best type of handrail attachment?
A. Over many years of precasting, we have encountered almost every conceivable method of attaching handrail to precast concrete. The correct answer lies in the application. If the precast unit is for interior use only, such as a fire egress tower in an apartment or office building, the best and most economical attachment is a concrete pocket cast into the concrete which can be grouted after the handrail post is set. If the precast unit will be exposed to weathering and salts, we have found that pockets are not recommended. They can take on moisture or freeze and expand, damaging the concrete. A better choice for exterior use is a side-mounted, bolt-on application. In this detail, water is least likely to become trapped.