Dig and pour a concrete pit for the hoistway, with cast-in-place anchor bolts in the corners. Anchor bolt templates are available as an option to help make sure the anchor bolts are in the right place. You need to engineer the pit foundation and reinforcement based on the elevator’s pit reactions that our engineer supplies to you, the jobsite’s soil conditions, and your local code requirements. Please do NOT pour the pit until you have received structural calculations and drawings from PME.
Typical pits have 8” walls and 12” floors, but please see pit layout drawings for precise measurements for your job.
If you have a sump hole, cover it with a non-combustible material, typically a sheet of metal.
Next, pour a concrete slab for the modular machine room, if ordered, and bolt it to the foundation with epoxy anchors.
If the machine room is not adjacent to the hoistway, piping and electrical must be run underground or overhead. Coordinate with PME and the installer to determine any building preparations needed to accommodate this.
Lastly, once the pit has been poured and the anchor bolts are in place, download this Pit Drawing Form. Fill out all the blanks with exact measurements and make sure to include the project name at the top. Then, email the form to us. With this completed form, the holes for the anchors will be as accurate as possible.
If this is new construction, retrofit or modular, and the elevator is going in after construction begins or through a roof, make sure that you leave 3″ in excess of the hoistway dimensions (out-to-out factory finish dimensions, which can be found on submittal drawings) on all sides, all the way to the pit to accommodate the hoistway being craned into the building.
Pour the Pit