How to Install Bypass Glass Shower Doors in a Tiled Shower

Locate the center from front to back of the front tub ledge. Measure along the center point from one wall to the other. Read the directions for the shower door you're installing to determine how much to subtract from this measurement.

Measure the distance you determined and mark it on the bottom shower track. Use a hacksaw with a miter box to cut the bottom track to length. File down the edge so it is smooth.

Position the bottom track in the middle of the bottom ledge with the same amount of space in front and behind it. Keep the track in place for the moment using masking tape. Mark the track position using a pencil for reference.

Hold the wall piece along one of the side walls, lining it up with the bottom track without shifting the bottom piece. Use a level to ensure the side track is even. Trace the mounting holes on the side piece with a pencil. Position and mark the wall channel on the other side of the shower opening.

Place two pieces of masking tape over each hole mark to form an X. Start the hole with a center punch to carefully make a small divot in the tile. Continue making the holes with a ¼-inch masonry bit that will drill through the tile without ruining it. Repeat with all of the holes for the side tracks.

Position wall anchors into the holes. Tap them lightly with a hammer to push them into the holes without breaking the tile.

Pull up the bottom track, removing and discarding the tape. Wipe down the ledge using rubbing alcohol to ensure it is clean so the track can stick well.

Squeeze beads of silicone sealant along the bottom edge of the sliding door track. Press the track in place based on the guide lines you drew. Use a damp cloth to wipe off silicone sealant that squeezes out from underneath the track.

Apply a bead of silicone sealant along the back side of the side channels. Position the side channels against the wall so that the holes and anchors show through the holes on the track. Screw the side tracks into place.

Measure for the top bar from one wall to the other. Take a separate measurement rather than simply using the bottom rail measurement as there may be a difference from the top to the bottom. Cut the top rail with a hacksaw to ⅛ inch less than the wall-to-wall measurement you took.

Secure the top frame onto the two side channels according to the door directions. Screw them in place as directed by the manufacturer.

Install the rollers and brackets for the door along the track. Refer to the door instructions as the specific attachment method varies by door. Hang the doors into the hangers, and slide them into place. Test the sliding doors to ensure they work properly.

Slide both doors to one end so you are able to place the center guide in the bottom track. Slide one door back to the opposite end so the doors are in the closed position. Move the center guide so it sits evenly around both doors. Screw the center guide into place.