You are here to learn how to convert shower to bathtub, right? I won’t fail you.

Converting a shower into a bathtub can enhance the functionality and comfort of your bathroom while also boosting your home’s value.

As a professional plumber, I’ve tackled numerous shower-to-tub conversions, and I’ll guide you through the process on how to convert shower to bathtub with detailed instructions and pro tips.

Here’s how to convert a shower to a bathtub the right way.

Step 1: Assess Your Bathroom’s Layout and Plumbing

The first step to converting your shower into a modern bathtub is to determine whether you really need a bathtub.

Evaluate Space Requirements

• Measure the shower space to ensure it accommodates the bathtub dimensions (standard tubs are typically 60 inches long).
• Check for obstructions, such as built-in shelving or nearby doors, that might limit installation options.

Inspect Existing Plumbing

• Verify the shower drain placement. Most tubs require a drain offset by several inches compared to a shower drain.
• Confirm the condition of the water supply lines. Galvanized pipes, for instance, may need to be upgraded to PEX or copper.

Pro Tip:

If you’re working with a small bathroom, alcove bathtubs are the most practical choice, fitting snugly in spaces designed for standard showers.

Step 2: Choose the Right Type of Bathtub

The type of bathtub you select can influence the complexity of installation:

• Alcove Tubs: Ideal for replacing showers in tight spaces. They come with three finished sides and are installed against walls.
• Freestanding Tubs (pictured ⬆): Offer a luxurious look but require sufficient open space and possibly more plumbing adjustments.
• Drop-In Tubs: Require a custom-built frame, which adds to installation costs but provides design flexibility.

Materials to Consider

• Acrylic: Lightweight, affordable, and easy to install.
• Cast Iron: Durable and retains heat, but requires reinforced flooring due to its weight.
• Fiberglass: Budget-friendly but less durable over time.

Step 3: Demolish the Existing Shower

Make sure you have the materials and the following tools before you demolish the existing shower that has served your family for years.

Tools You’ll Need

• Adjustable wrench
• Utility knife
• Screwdriver
• Pry bar
• Safety gear (gloves, goggles, dust mask)

Steps to Remove the Shower

1. Turn off the water supply to prevent leaks or accidental flooding.
2. Disconnect the showerhead, faucet, and any other fixtures using an adjustable wrench.
3. Cut through the caulking and grout around the shower surround using a utility knife.
4. Use a pry bar to carefully remove wall panels or tiles, ensuring you don’t damage the underlying structure.
5. Detach the shower pan by removing screws or breaking adhesive bonds. Dispose of the old materials properly.

Pro Tip:

Check for mold or water damage behind the shower walls. Repair any issues before proceeding to the next step.

Step 4: Prepare the Area for Bathtub Installation

Now is the time for the actual job – converting the shower to a bathtub.

Floor Preparation

• Inspect the subfloor for rot or weakness, especially around the drain area. Replace damaged sections as needed.
• Ensure the floor is level and strong enough to support the bathtub, especially if you’re installing a heavy material like cast iron.

Wall Preparation

• Install moisture-resistant drywall or cement board around the tub area.
• Plan for a waterproofing solution, such as a tile backer or tub surround.

Step 5: Adjust Plumbing to Fit the Bathtub

Proper plumbing adjustments are crucial for a successful installation:

• Drain Alignment: Bathtubs have a center, left-hand, or right-hand drain. Adjust your plumbing lines to match the tub’s drain location.
• Overflow Valve: Install the overflow pipe and valve to prevent accidental water spillage.
• Water Lines: Ensure that the faucet and spout are properly aligned with the tub’s dimensions.

Pro Tip:

Always consult local building codes or hire a licensed plumber to handle significant plumbing modifications.

Step 6: Install the Bathtub

Follow the following steps carefully to install your new bathtub:

1. Position the Tub: Place the tub in the prepared space to ensure a snug fit. Adjust as needed before securing it in place.
2. Secure the Tub: Attach the tub to the wall studs using brackets or clips. This step prevents shifting and ensures stability.
3. Connect Plumbing: Attach the drain and overflow assembly, and connect the water supply lines. Test the system for leaks.
4. Level the Tub: Use a level to ensure the tub is perfectly horizontal. Shim where necessary to prevent uneven water pooling.

Step 7: Finish the Surround and Seal

• Install tiles or a prefabricated surround to protect walls from water damage.
• Seal all edges with waterproof caulking to prevent leaks and mold growth.
• Reinstall fixtures, including the spout and faucet, and test the water flow.

See also: How to Grow Squash Vertically

How to Convert Shower to Bathtub FAQs

Q1: How much does it cost to convert a shower to a tub?

A: The cost can range from $1,200 to $5,000, depending on the tub type, materials, and labor involved. High-end materials or plumbing adjustments can increase the price.

Q2: Can I put a bathtub in my shower?

A: Yes, with adequate space and proper plumbing modifications, a bathtub can replace a shower. Ensure the floor and drain alignment meet the tub’s requirements.

Q3: How do you replace a shower with a bath?

A: The process involves removing the shower, making plumbing adjustments, installing the tub, and finishing the area with tile or surround panels. It’s essential to follow building codes and safety guidelines.

Q4: Is it cheaper to have a bathtub or a shower?

A: Showers are typically cheaper to install and use less water, but bathtubs add value to your home and provide relaxation, making them worth the investment.

Summary

Converting a shower to a bathtub requires careful planning and execution, from evaluating the space to making plumbing adjustments and finishing with a professional-grade installation. While it’s possible to DIY, complex tasks like plumbing are best left to professionals.

A well-installed bathtub not only enhances your bathroom’s functionality but also its aesthetic and market value.

Ready to transform your bathroom? Follow these steps or consult a licensed plumber to ensure a seamless and successful conversion.

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