1. Introduction
1.1 Product Overview
This manual provides essential information for the installation, maintenance, and care of your MAAX B3Round Rectangular Acrylic Corner Shower Base. This shower base is designed for corner installations, featuring a right-hand drain location and a smooth acrylic surface.
1.2 Safety Information
WARNING: Improper installation can lead to water damage, structural issues, or personal injury. Always consult with a qualified professional for plumbing and installation. Adhere to all local building codes and regulations.
- Read all instructions thoroughly before beginning installation.
- Ensure the installation area is structurally sound and level.
- Wear appropriate personal protective equipment (PPE) during installation.
- Do not use abrasive cleaners or tools that could damage the acrylic surface.
2. Package Contents
Verify that all components are present and undamaged before proceeding with installation.
- MAAX B3Round Rectangular Acrylic Corner Shower Base
Note: The drain assembly is not included and must be purchased separately.
3. Setup and Installation
Professional installation is highly recommended for this product to ensure proper function and longevity. The following steps are general guidelines and may vary based on your specific installation environment.
3.1 Pre-Installation Checks
- Inspect the shower base for any manufacturing defects or shipping damage. Do not install a damaged product.
- Ensure the subfloor is clean, level, and capable of supporting the weight of the shower base, water, and user.
- Confirm rough-in plumbing for the right-hand drain location is correctly positioned.
3.2 Installation Steps (General)
- Prepare the Area: Clear the installation area. Ensure walls are plumb and square.
- Dry Fit: Place the shower base in its intended corner location to verify fit and drain alignment.
- Leveling: Use shims as necessary to ensure the base is perfectly level in all directions.
- Drain Connection: Install the drain assembly (not included) according to the manufacturer's instructions, ensuring a watertight seal.
- Secure the Base: Follow manufacturer-specific instructions for securing the base to the subfloor and wall studs. This typically involves mortar or adhesive beneath the base and fasteners along the flange.
- Water Test: Before finishing walls, perform a water test to check for leaks around the drain and base perimeter.
- Finishing: Install wall coverings (tile, panels) down to the top edge of the shower base flange. Apply silicone sealant where the base meets the wall and around the drain.

Image 1: The MAAX B3Round Rectangular Acrylic Corner Shower Base, showcasing its smooth surface and right-hand drain opening.

Image 2: An example of the MAAX B3Round Shower Base integrated into a modern bathroom setting, demonstrating its corner installation.
4. Maintenance
Proper care will help maintain the appearance and extend the life of your acrylic shower base.
4.1 Cleaning Instructions
- Clean the shower base regularly with a soft cloth or sponge and a non-abrasive, mild household cleaner.
- Rinse thoroughly with water after cleaning to remove all cleaner residue.
- Avoid using abrasive cleaners, scouring pads, steel wool, or harsh chemicals (e.g., acetone, paint thinner, strong acids or bases) as these can damage the acrylic surface.
- For stubborn stains, a paste of baking soda and water can be gently applied and rinsed.
5. Troubleshooting
This section addresses common issues you might encounter with your shower base.
5.1 Common Issues
- Leaks: If you notice water leaks, inspect the drain connection and the sealant around the base. Re-tighten drain components or reapply silicone sealant as needed. Professional assistance may be required.
- Slow Drainage: This is typically caused by a clogged drain. Remove the drain cover and clear any hair or debris. If the problem persists, the issue may be further down the plumbing line.
- Surface Scratches: Minor scratches on acrylic can sometimes be buffed out with a specialized acrylic repair kit. For deeper scratches, professional repair or replacement may be necessary.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | Maax |
| Model | B3Round |
| Part Number | 410006-R-503-001 |
| Material | Acrylic |
| Color | White |
| Shape | Rectangular |
| Installation Type | Corner |
| Drain Location | Right-Hand |
| Product Dimensions (L x W x H) | 59.875 in x 35.875 in x 4 in (approx. 59.88"L x 35.88"W x 4"H) |
| Threshold Height | 3 inches |
| Item Weight | 62 pounds |
| UPC | 623163631265 |
| Included Components | Shower Base |
7. Warranty and Support
For warranty information, product support, or to purchase replacement parts, please contact MAAX customer service directly. Refer to your purchase documentation for specific warranty terms and conditions.
You can typically find contact information on the manufacturer's official website or through your product retailer.





