Shower-Pan9 min read

GoBoard Shower Pan: A DIY Install Guide (That Actually Works!)

E
Editorial Team
2026-06-13
GoBoard Shower Pan: A DIY Install Guide (That Actually Works!)

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GoBoard Shower Pan: A DIY Install Guide (That Actually Works!)

So, you're thinking about installing a GoBoard shower pan yourself? Maybe you're renovating your bathroom and trying to save some money, or maybe you just like the satisfaction of a good DIY project. Whatever your reason, congratulations! You've landed in the right place. This guide will walk you through the entire GoBoard shower pan installation process, step-by-step. I've been there and done that, and I'm going to share my hard-earned knowledge (and avoid some of the pitfalls I encountered!). Get ready to transform your bathroom with a sleek, waterproof GoBoard shower pan install that will actually work!

Step 1: Gather Your Supplies and Tools

Before you even think about tearing out your old shower pan, you need to make sure you have everything you need at your fingertips. Trust me, nothing is more frustrating than getting halfway through a project and realizing you're missing a crucial tool and the hardware store is closed.

Here's a comprehensive list to ensure a smooth installation:

  • GoBoard Shower Pan: Obviously! Make sure you choose the correct size and drain location for your shower. Order this before doing any demolition work.
  • GoBoard Sealant: This is specifically designed to bond GoBoard to itself and other surfaces, creating a watertight seal. Do NOT cheap out on this; it's critical.
  • GoBoard Fasteners: These specialized screws provide a strong, secure hold without cracking the GoBoard. Again, using the recommended fasteners is a key component to a successful install.
  • Thin-Set Mortar (Modified): Needed for setting the GoBoard shower pan and adhering tiles. Modified means it has polymers added for better adhesion and flexibility.
  • Cement Board Screws: If you are replacing cement board, you will need new cement board screws.
  • Drain Assembly (Compatible with GoBoard): Ensure the drain assembly is specifically designed for GoBoard shower pans.
  • PVC Primer and Cement: For connecting the drain to your existing plumbing.
  • Tile: Choose whatever you like, but it needs a waterproof underlayment, and that is exactly what you are going to create with this process.
  • Grout: To fill in between your tiles.
  • Sealer: To waterproof your grout.
  • Measuring Tape: For accurate measurements. Critical to success.
  • Pencil or Marker: For marking cut lines. Double check those measurements.
  • Level: Ensure the shower pan is perfectly level. Essential for proper drainage.
  • Utility Knife: For cutting the GoBoard.
  • Circular Saw or Jigsaw: For more complex cuts including cement board.
  • Drill with Driver Bits: For installing fasteners.
  • Trowel (Notched): For applying thin-set mortar.
  • Rubber Mallet: For gently tapping the GoBoard into place.
  • Spacers: To ensure even tiling.
  • Grout Float: For applying grout.
  • Grout Sponge: For cleaning up excess grout.
  • Safety Glasses: Protect your eyes!
  • Gloves: Protect your hands! Also, sealant gets messy.
  • Dust Mask: Especially important during demolition of old shower.
  • Shop Vacuum: For cleaning up dust and debris.

Step 2: Demolition - Getting Rid of the Old

This is where things get messy, but it's a crucial step. Before you start swinging a hammer, make sure you turn off the water supply to your shower. Better safe than sorry!

  1. Remove Existing Fixtures: Carefully disconnect and remove the showerhead, faucet, and any other fixtures attached to the shower walls.
  2. Remove Existing Tile: Chisel away the existing tile, being careful not to damage the surrounding walls. A hammer and chisel, or a specialized tile removal tool, will do the trick. Wear those safety glasses!
  3. Remove Old Shower Pan: This can be the trickiest part, depending on how your old shower pan was installed. You may need to use a pry bar to loosen it. Be careful not to damage the plumbing beneath the pan. If you suspect asbestos (especially in older homes), have it professionally tested and removed!
  4. Inspect the Subfloor: Once the old shower pan is removed, thoroughly inspect the subfloor for any signs of rot, mold, or water damage. Repair or replace any damaged areas before proceeding. This is absolutely crucial! If the subfloor is compromised, your new shower pan won't be stable, and you'll end up with leaks.
  5. Clean the Area: Vacuum up all the dust, debris, and loose particles. A clean surface is essential for proper adhesion.

Step 3: Preparing the Subfloor

Now that you have a clean slate, it's time to prepare the subfloor for the GoBoard shower pan.

  1. Level the Subfloor: The GoBoard shower pan needs to sit on a perfectly level surface. Use a self-leveling compound to correct any imperfections in the subfloor. Follow the manufacturer's instructions carefully.
  2. Install Cement Board (If Necessary): If you removed cement board during demolition, now is the time to replace it. Cut the cement board to size and secure it to the studs with cement board screws. Ensure that the cement board is flush with the surrounding walls.
  3. Mark Drain Location: Accurately mark the location of the drain on the subfloor. This is critical for proper alignment.

Step 4: Dry-Fitting the GoBoard Shower Pan

Before you start slathering on the thin-set mortar, it's always a good idea to do a dry fit of the GoBoard shower pan. This allows you to make sure everything lines up correctly and identify any potential problems before you commit.

  1. Position the Shower Pan: Carefully place the GoBoard shower pan on the prepared subfloor, aligning the drain opening with the marked location.
  2. Check for Level: Use a level to ensure that the shower pan is perfectly level in all directions. If it's not, shim it until it is.
  3. Mark Cut Lines (If Necessary): If you need to trim the GoBoard shower pan to fit your shower enclosure, use a pencil or marker to mark the cut lines.
  4. Make Any Necessary Cuts: Use a utility knife or circular saw to make any necessary cuts. Be careful to cut along the marked lines. Remember to measure twice, cut once.
  5. Dry-Fit the Drain Assembly: Assemble the drain and dry-fit the drain components. This will allow you to verify the fit and ensure the drain is properly aligned.

Step 5: Installing the GoBoard Shower Pan

Okay, this is the moment of truth! Now you are actually going to put things together.

  1. Apply Thin-Set Mortar: Using a notched trowel, apply a generous layer of modified thin-set mortar to the subfloor where the GoBoard shower pan will sit. Make sure to cover the entire area evenly.
  2. Set the Shower Pan: Carefully lower the GoBoard shower pan onto the thin-set mortar, aligning the drain opening with the drain location.
  3. Press Firmly: Press down firmly on the shower pan to ensure it is fully embedded in the thin-set mortar. Use a rubber mallet to gently tap the shower pan into place.
  4. Check for Level Again: Once the shower pan is set, check for level again. If necessary, use shims to make any final adjustments.
  5. Secure with Fasteners: Use GoBoard fasteners to secure the shower pan to the studs. Space the fasteners according to the manufacturer's instructions.
  6. Apply GoBoard Sealant: This is a key step. Apply GoBoard Sealant to all seams and joints where the GoBoard meets the wall, the floor, and the drain. This sealant creates a waterproof barrier that prevents leaks.

Tools for the Job:

Installing a GoBoard shower pan requires the right tools. Don't skimp on tools; proper tools make the job easier and help achieve better results.

  • GoBoard Sealant: DAP GoBoard Waterproofing Sealant is the specifically formulated sealant that ensures a waterproof seal between GoBoard panels and around the drain. Its unique formulation creates a strong, flexible bond that will withstand moisture and prevent leaks. Why this matters: You can use other sealants, but this is what GoBoard recommends, and will adhere best to the materials.
  • GoBoard Fasteners: GoBoard screws are designed with a flat head to sit flush with the surface of the board and are specially coated to resist corrosion. Why this matters: Regular screws can damage the GoBoard and compromise its waterproofing performance. These screws will properly secure the board and maintain the integrity of the waterproof system.

Step 6: Installing the Drain Assembly

Now it's time to connect the drain to your plumbing.

  1. Prepare the Drain Pipe: Clean the end of the drain pipe with PVC primer.
  2. Apply PVC Cement: Apply PVC cement to the inside of the drain fitting and the outside of the drain pipe.
  3. Connect the Drain: Insert the drain pipe into the drain fitting and twist to ensure a secure connection. Hold the connection in place for a few seconds until the cement sets.
  4. Test the Drain: Once the cement has fully cured, test the drain by pouring water into the shower pan and checking for leaks.

Step 7: Tiling the Shower

With the GoBoard shower pan installed and the drain connected, you're ready to start tiling the shower.

  1. Apply Thin-Set Mortar: Using a notched trowel, apply a layer of thin-set mortar to the surface of the GoBoard.
  2. Set the Tiles: Press the tiles into the thin-set mortar, using spacers to maintain consistent grout lines.
  3. Cut Tiles as Needed: Use a tile saw to cut the tiles to fit around the drain and the edges of the shower enclosure.
  4. Allow to Cure: Let the thin-set mortar cure for at least 24 hours before proceeding.

Step 8: Grouting and Sealing

The final steps are grouting and sealing.

  1. Apply Grout: Apply grout to the tile joints using a grout float.
  2. Clean Excess Grout: Use a damp sponge to clean up any excess grout from the tile surfaces.
  3. Allow to Cure: Let the grout cure for at least 24 hours before proceeding.
  4. Seal the Grout: Apply a grout sealer to the grout lines to protect them from moisture and stains.

Pro-Tips / FAQ Section

  • What if my subfloor isn't perfectly level? Use a self-leveling compound to create a smooth, level surface before installing the GoBoard shower pan.
  • How do I cut GoBoard? GoBoard can be cut with a utility knife or a circular saw. Use a sharp blade for clean, accurate cuts.
  • Can I use regular screws instead of GoBoard fasteners? No. GoBoard fasteners are specifically designed to provide a secure hold without cracking the GoBoard. Using regular screws can compromise the waterproofing performance of the shower pan.
  • Do I need to waterproof the GoBoard? No, GoBoard is already waterproof. However, it's important to use GoBoard sealant at all seams and joints to ensure a watertight seal.
  • How long does it take to install a GoBoard shower pan? The length depends on your experience and the complexity of the shower enclosure. However, most DIYers can complete the installation in a weekend.

Encouraging Conclusion

Congratulations! You've successfully installed a GoBoard shower pan. By following these steps, you've created a beautiful, waterproof shower that will last for years to come. Not only have you saved money by doing it yourself, but you've also gained the satisfaction of knowing you've done a great job. Now, step back, admire your work, and enjoy your new shower! You've earned it! <br><a href="https://www.amazon.com/s?k=go board shower pan&sort=price-asc-rank&tag=bestbathroomrenovation-20">[Shop Budget-Friendly go board shower pan on Amazon.]</a><br>

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