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1. Prior to proceeding, review and follow one of the options outlined below.
Option I: New Gym Construction Beginning Prior To Pouring the Concrete Subfloor
With the assistance of the architect, accurately determine the intended centerline of each final
volleyball post location. Excavate and install a 12" diameter x 36" deep sonotube at each location insuring
that the top of the sonotube is flush with the finished concrete subfloor, that the tube is securely embedded in
concrete and that the sonotube is perpendicular to the finished subfloor. Optionally frame a 16" opening at
each location prior to pouring the subfloor. This will eliminate the need to remove concrete prior to
excavation of a 12" diameter x 36" deep hole necessary to complete the installation at a later date.
Option II: New Gym Construction With Concrete Subfloor Poured But Without Finish Wood Floor
Installed.
If the subfloor is existing or has already been poured, determine the intended centerline of each
volleyball post location and using a concrete saw or other method, remove enough of the subfloor to allow
excavation 12" diameter x 36" deep when measured from the finished concrete subfloor. Excavate soil prior
to installation of wood flooring.
Option III: New Gym Construction with Concrete Subfloor and Floating Wood Floor Already Installed
or Existing Gym Floors Without Existing Floor Sockets.
If no work has been completed (as outlined in Option I and Option II above) but the wood floor is
already installed, precisely locate the desired centerline position of each volleyball post. Consult the architect
as needed to help avoid damaging any utilities or other impediments that may be embedded in or below the
concrete subfloor. Proceed to instruction #3 below to install the hinged brass floor plate at each location.
When the 6" "thru bore" and the 8" "step bore" in the wood floor are complete, excavate soil creating a 10"
minimum diameter x 36" deep hole (when measured from the surface of the concrete subfloor). Take care to
protect the floor during excavation. Discard all soil.
Option IV: Existing Gym Floors with Existing Floor Sockets for Removable Poles.
When installing Magic posts at the same location where existing floor sockets are installed, remove
existing floor plate. Protect the wood floor prior to proceeding. Using a jack hammer, hammer drill or
other means, remove the existing socket and mortar completely. Most sockets are 3" – 4" diameter and 10" –
16" deep. The depth and diameter of mortar will vary depending on the initial installation. Once the entire
existing socket is removed, excavate the soil directly below the existing floor plate until you have a 10"
minimum diameter x 36" deep hole (when measured from the top surface of the concrete subfloor). It is
advisable to replace the existing floor plate with VB23-CV Brass Floor Plates (E) unless the current plates
are too large or of a design that prohibits installing of the VB23-CV Brass Floor Plates (E).
2. Once the wood flooring is installed, proceed to instructions #3 - #9 below to prepare and install VB23-CV
Brass Floor Plate (E).
3. Locate the desired center line of the VB23-CV Brass Floor Plate (E) installation. If the VB23-CV Brass
Floor Plate (E) is being installed over an existing sonotube, subfloor cutout, excavated hole or existing
socket, care must be given to assure that the VB23-CV Brass Floor Plate (E) is centered precisely over that
center line. Consult architect as needed.
4. Drill a small (approximately ¼" – 3/8") hole in the center of the desired location in the wood floor.
See Photo 1.
Caution!
Avoid damage to expensive floors by carefully following these instructions using the optional
VB23IK Installation Kit (X) or by using an experienced installer.
