The FlexStone shower base is a versatile and durable solution for homeowners and DIY enthusiasts looking to update or install a new shower system. Designed for both ease of use and compliance with standard plumbing requirements, the FlexStone shower base offers a cost-effective alternative to traditional materials like tile and stone. This article provides a comprehensive overview of the installation process, including critical dimensions, required tools, drain assembly instructions, and long-term maintenance practices. All information is derived from official installation guides and technical specifications provided by FlexStone.
Overview of FlexStone Shower Base Installation
Before beginning the installation, it is essential to review the official installation instructions and consult local building codes to ensure compliance. FlexStone recommends verifying that the subfloor is level and square, and that all stud walls are properly aligned. The shower base must be placed on a flat, even surface to function correctly and avoid drainage issues. The installation process involves cutting the subfloor, preparing the drain assembly, positioning the shower base, and securing it with adhesive.
FlexStone shower bases are available in multiple models, including the FLXSBR6030 and FLXSBL6030, with specific dimensions and tolerances provided for each. The dimensions are given as reference points, and it is recommended to measure the actual base before installation to ensure a proper fit. The center of the drain must be within a tolerance of ±1/2 inch for the base to function as intended.
Pre-Installation Preparation and Tools
Proper preparation is key to a successful installation. FlexStone provides a list of required tools and materials in its official documentation. These include:
- Caulk gun and 100% silicone sealant for sealing edges and joints.
- Performance Pro Construction Adhesive, which is included in some FlexStone kits and is ideal for wet areas.
- Drill and appropriate bits for any necessary hardware or support installation.
- Jigsaw or circular saw for trimming if needed.
- Level to ensure the shower base is installed evenly.
- Measuring tape for precise dimension checks.
- Shims to correct minor subfloor unevenness.
- Safety gear, including gloves, goggles, and knee pads.
In addition to tools, it is recommended to have the FlexStone shower base and drain assembly ready before beginning. FlexStone advises users to inspect all components for damage or missing pieces and to contact customer support if any issues are encountered.
Installation Steps
The installation process is broken down into several key steps, each of which must be followed carefully to ensure a secure and functional installation. The following steps are derived from FlexStone’s official installation guides:
Step 1: Prepare the Subfloor
Ensure that the subfloor and stud walls are square and plumb. A 5-inch by 5-inch opening must be cut in the subfloor to accommodate the drain. The 2-inch drain waste pipe should extend above the surface of the subfloor and the height of the shower base. It is important to follow the drain assembly instructions provided with the shower drain and ensure that the waste pipe is correctly positioned.
Step 2: Position the Shower Base
Before placing the shower base, ensure that the subfloor is free of debris and is completely flat and level. The entire bottom of the base must be in contact with the subfloor for proper drainage. A level should be placed on the threshold and nailing flanges of the shower base to ensure that the base is level. Do not use shims to level the base—only correct minor unevenness with shims if necessary.
Step 3: Secure the Shower Base
Once the base is level, use a pencil to mark each stud at the top of the nailing flange. Apply adhesive to the floor beneath the shower base to provide additional stability and prevent shifting. FlexStone strongly recommends using a licensed plumber to connect the drain assembly to the drain pipe for proper sealing and functionality.
Step 4: Install the Drain Assembly
The drain assembly includes several components: strainer, upper drain body, silicone sealant, rubber gasket, friction gasket, and lower drain body. Apply silicone sealant around the drain body and ensure that the rubber and friction gaskets are in place before securing the drain. The drain should be aligned with the pre-cut opening in the subfloor.
Step 5: Secure the Nailing Flange
After the base is properly aligned and level, secure the nailing flange to the stud walls. This ensures that the base remains in place and provides additional support. The nailing flange should be driven into the studs without over-tightening, which could warp the base or cause damage.
Dimensions and Tolerances
The dimensions of FlexStone shower bases are provided as a reference and should be verified with actual measurements before installation. The following are key dimensions for the FLXSBR6030 and FLXSBL6030 models:
- Overall Length: 59 ¾ inches
- Overall Width: 14 ½ inches
- Threshold Height: 3.625 inches
- Tile Flange Height: 2.625 inches
- Drain Center Tolerance: ±1/2 inch
It is important to note that while these dimensions are provided as a guide, the actual base should be measured to ensure a proper fit. The drain must be positioned within the allowed tolerance for the base to function correctly.
Compatibility with Drains and Accessories
FlexStone shower bases are compatible with a range of standard shower drains. The documentation lists several compatible models from brands such as Sioux Chief, Oatey, and AB&A. These include:
- Sioux Chief 827-2B – Cast Brass Body Drain
- Sioux Chief 828-2 – PVC Drain
- Oatey 42044 – ABS 2-part Solvent Weld Shower Drain with Stainless Steel Strainer
- Oatey 42045 – PVC 2-part Solvent Weld Shower Drain with Stainless Steel Strainer
- AB&A ABA34490SNAP – Receptor Base - Rib Grip CP ABS
- AB&A ABA34500 – Receptor Base - Rib Grip CP PVC
FlexStone recommends using one of these compatible drains to ensure a secure and watertight connection. If a different drain is used, it is the responsibility of the installer to ensure that it meets local building codes and provides proper sealing.
Backer Board and Wall Panel Installation
After the shower base is installed, the next step is to install the backer board and FlexStone wall panels. FlexStone recommends using a sheet of cardboard on top of the base to protect it during the installation of the backer board. The backer board should be cut to fit the contours of the shower base and secured with adhesive and screws.
FlexStone wall panels can then be installed over the backer board. These panels are made of a composite material that mimics the look of stone or tile while offering the durability of plastic. The nailing flange of the shower base should be covered with adhesive and the wall panel secured in place.
Cleaning and Maintenance
FlexStone shower bases are designed for easy cleaning and maintenance. The surface can be cleaned with a soft sponge or cloth and a mild, non-abrasive cleaner. It is important to avoid using harsh or abrasive cleaners that could damage the surface of the base or wall panels.
FlexStone also recommends regular inspection of the drain assembly and sealant to ensure that they remain intact. If any leaks or cracks are detected, the sealant should be reapplied or the drain assembly should be replaced.
Additional Resources and Support
FlexStone provides a variety of resources to assist with the installation process. These include PDF guides, video tutorials, and customer support. The official website offers access to installation walkthroughs and other helpful information to guide users through the process.
If any issues arise during installation, FlexStone encourages users to contact customer support at 877-941-3662 (Monday through Friday, 8:00 AM – 5:00 PM MST). The support team can provide assistance with missing items, installation questions, and product compatibility.
Conclusion
The FlexStone shower base is a durable, cost-effective solution for homeowners and DIY enthusiasts looking to install or update their bathroom. With clear installation instructions, compatible drain options, and easy maintenance, the FlexStone shower base offers a practical and aesthetically pleasing alternative to traditional materials. By following the steps outlined in this guide and consulting official documentation, users can ensure a successful and compliant installation that meets both functional and aesthetic expectations.