Mark and trace a 21”x31” rectangle at desired location.

With an oscillating multi-tool or circular hand saw, cut into the van flooring on the traced line.

Note: If using a circular hand saw, set depth deep enough to only cut through flooring and subfloor.

Remove the drain from the shower pan and place the pan into your new cut hole.

Note: Ensure the underside of where the drain hole lands is clear from any van components

and frame rails.

Mark the center of where your drain hole lands on metal the van flooring and drill a small pilot hole.

Using the pilot hole previously made, cut a 3” circular hole into the metal van flooring.

Level the floor ridges as necessary.

Generously apply silicone adhesive into the newly cut hole. Also apply silicone adhesive onto the underside lip of shower pan 1/2” overhang.

Reinstall drain fixture onto shower pan ensuring tightness and good seal.

Place the shower pan into your newly cut hole.

Note: Allow silicone adhesive to cure per manufacturer recommendation before use.