These instructions apply to the 2-piece wall sets in the CASTICO Corner Round and Neo Angle shower kits. For alcove wall sets, see Shower Wall Panel Installation Guide.
These instructions are not all-inclusive. CASTICO is not responsible for water damage of any kind in connection with installation. Scan the QR code on the guide or visit castico-tx.com/support for the installation video.
Available kits
All panels are 84" tall and 1/2" thick.
| Kit | Size | Back wall | Side wall | Compatible door |
|---|---|---|---|---|
| Corner Round | 37" x 37" x 84" | B, 36 5/16" (1 pc) | C, 35 13/16" (1 pc) | 38 in. W x 72 in. H Round Sliding Frameless Corner Shower Enclosure in Stainless Steel #B911917-3838 |
| Neo Angle | 37" x 37" x 84" | A, 36 13/16" (1 pc) | B, 36 5/16" (1 pc) | 38 in. W x 72 in. H Neo-Angle Pivot Semi-Frameless Corner Shower Enclosure in Stainless #422061 |
Before installation
- Review the complete guide before attempting to install.
- Validate your shower measurements for compatibility.
- Make sure package contents are complete. Do not begin installation if any component is damaged, has a manufacturing issue, or is missing.
- Observe local building and plumbing codes.
- Prepare and waterproof the shower area, including stud supports for accessories.
- Indoor use only. Do not install in direct sunlight.
Required for installation (not included)
Safety goggles, measuring tape, utility knife, leveling tools, 1/4"–3/8" notch trowel, putty knife, hole saws, rubber mallet, bath silicone sealant, suction cups, construction adhesive (polyurethane), and cargo bars or 2x4s for bracing.
Before installing walls
- Prepare stud supports for accessories such as shower doors, grab bars, and shower seats.
- Install proper waterproofing over the studs: cement-based backer board or moisture-resistant gypsum, with waterproofing membrane on all seams.
- The shower floor must be fully installed before starting the walls.
Step 1: Waterproofing
Prepare and waterproof the shower wall area following best practices, including around the shower head and valve. Waterproofing products are not included.
Step 2: Validate your space
- Identify the wall sequence and the alignment of the wall pattern for your kit.
- Cover the base before installing walls to prevent problems with dried thinset.
Step 3: Shower head and valve cutouts
Identify which wall needs the shower head and valve openings. Apply painter's tape to prevent chipping and cut with the decor side up. Account for the wall thickness when measuring hole locations.
Step 4: Adhesive for the first wall
- Thinset: apply in a vertical pattern over the wall section. Applying thinset to the back of the panel is also recommended for proper adhesion.
- Construction adhesive: apply thick beads in a straight pattern, 4"–6" apart.
- Do not apply thinset or adhesive to the waterproofing flange attached to the CASTICO base.
Step 5: Install the first wall
Install the walls in the correct sequence with the arrows pointing up. After installing each wall, wipe off excess thinset with a damp rag before it dries.
Step 6: Adhesive for the second wall
Apply adhesive to the second wall section the same way. Applying thinset to the back of the panel is recommended.
Step 7: Install the side wall
Install the second wall so its edge overlaps the first wall at the corner joint (for the Corner Round kit, wall B is installed over wall C). Align the corner joint to match the wall pattern. Geometric patterns may need to be shimmed up to 1/16" for alignment.
Step 8: Finishing
Apply bath silicone sealant to all wall seams to waterproof them. Painter's tape 1/8" from the edge helps keep the bead clean.
Step 9: Support bars
Use 2x4 lumber or load bars to apply pressure to the walls until the adhesive cures.
Step 10: Accessories
Let the walls cure for 24 hours before using the shower or installing accessories. Seal any perforations in the walls or base with silicone.
Care and maintenance
Clean with neutral soap, a foaming shower and tile cleaner, or a calcium, lime and rust remover, using a cotton knit rag or plastic fiber scrub brush. A water-based impregnator sealer is recommended for long-term care. Do not use solvents, abrasive products, direct household bleach, or scouring tools.
Support
For questions or to report an issue, contact CASTICO Customer Care at (844) 364-2502 or contact@castico-tx.com.