How to Convert a Shower to a Tub (or a Tub to a Shower)

Thinking about making a big change to your bathroom layout? Whether you want to convert a shower to a tub for long soaks after a long day, or swap out a rarely used bathtub for a more practical walk-in shower, this is one of the most rewarding bathroom upgrades you can tackle. The project takes planning, the right fixtures, and a clear understanding of what's involved — but the payoff in daily comfort and home value is well worth it. This guide walks you through both directions of the conversion so you can make an informed decision before the first tile comes off the wall.

Should You Convert a Shower to a Tub, or Vice Versa?

Before picking up a sledgehammer, spend some time thinking about how your household actually uses the bathroom. Neither option is universally better — the right choice depends on your lifestyle, your home's resale potential, and your plumbing layout.

Reasons to Add a Freestanding or Drop-In Tub

• You have young children who need a safe bathing space.
• You want a spa-like retreat with a soaking or freestanding tub.
• Your home currently has no bathtub at all, which can hurt resale value.
• You're drawn to the aesthetic of a statement bathtub as a focal point.

Reasons to Replace a Tub with a Shower

• You almost never take baths and the tub collects cleaning supplies instead.
• A mobility concern makes stepping over a tub rim difficult or unsafe.
• You want to maximize floor space in a smaller bathroom.
• A well-designed walk-in shower can feel luxurious and actually boost appeal for buyers who prioritize function.

One important note: real estate professionals generally recommend keeping at least one bathtub in the home, especially if you have only one full bathroom. If you have two or more full baths, converting one shower to a dedicated tub space can actually differentiate your home in the market.

Planning Your Conversion: The Essentials

Good planning prevents expensive surprises. Here are the key areas to evaluate before your project begins.

Plumbing Considerations

Both showers and tubs share basic plumbing requirements — a hot and cold supply line and a drain — but the specifics differ. A tub drain sits close to the floor and connects to an overflow plate, while a shower drain is set into a sloped floor. If you're converting a shower to a tub, your plumber will need to cap or relocate the existing shower drain and rough in a new drain position suited to your tub's specifications. Budget for at least several hours of licensed plumbing work regardless of which direction you're going.

Structural and Waterproofing Work

Shower floors are built with a mortar bed and a slope toward the drain. When you remove a shower to install a tub, that floor needs to be leveled and properly supported to handle the weight of a filled tub — water weighs about 8.3 pounds per gallon, and a standard soaking tub holds 40–60 gallons. Freestanding tubs can weigh several hundred pounds when full, so subfloor reinforcement is sometimes necessary. Always consult a contractor before assuming your existing floor can handle the load.

Going the other direction — tub to shower — requires building a waterproof shower pan or installing a prefab shower base, then waterproofing all walls to at least six inches above the finished floor. Cutting corners on waterproofing is the leading cause of mold, rot, and costly structural damage down the road.

Space and Clearance Requirements

Most building codes require a minimum of 30 by 30 inches of interior shower space, though 36 by 36 is far more comfortable. Standard alcove tubs fit a 60-inch rough opening. Freestanding tubs need clearance on at least three sides for comfortable access and visual balance — plan for at least 6 to 12 inches on each open side. Measure your bathroom carefully and account for any existing fixtures, doors, or windows before committing to a tub style or size.

How to Convert a Shower to a Tub: Step-by-Step Overview

This overview assumes you're working with a licensed plumber and, where needed, a general contractor. Always pull the required permits — unpermitted bathroom work can create issues when you sell.

• Remove the existing shower unit. This includes the shower door or curtain rod, shower head and valve trim, tile or surround panels, and the shower pan or base. Demo work is labor intensive but straightforward.
• Evaluate and prep the plumbing. Your plumber will cap the existing drain, assess supply line positions, and rough in the new drain location based on the tub you've chosen. A freestanding tub with a floor-mount faucet requires supply lines brought up through the floor, while a deck-mount or wall-mount setup differs again.
• Level and reinforce the floor. The subfloor is leveled where the sloped shower pan was removed, and reinforcement is added if necessary.
• Install your new tub. Drop-in and alcove tubs are set before surrounding walls are finished. Freestanding tubs are typically the last major fixture installed because they sit on the finished floor.
• Finish walls and floor. Tile, stone, or a prefab surround completes the look. For a freestanding tub, many homeowners opt for large-format floor tile that lets the tub truly stand out.
• Install fixtures and trim. Faucets, the drain assembly, and any hand shower or wall-mounted spout are the finishing touches.

If you're ready to start browsing options, explore our full selection of freestanding and soaking bathtubs to find the style and size that fits your space.

How to Convert a Tub to a Shower: Step-by-Step Overview

• Remove the tub and surrounding materials. Disconnect the drain and supply lines, then remove the tub itself. Alcove tubs can be heavy; expect to cut them apart if they won't fit through the doorway in one piece.
• Rough in the new drain. Your plumber moves or adjusts the drain to the center (or designed low point) of the new shower floor.
• Build the shower base. You can mud-set a custom tiled shower floor for a seamless look, or install a solid-surface or acrylic shower base for a faster, lower-maintenance solution.
• Waterproof the walls. Apply a waterproofing membrane to cement board or tile-ready walls before any tile goes up.
• Tile or panel the walls. Large-format tile, subway tile, or solid-surface panels are all popular choices. Carry the finish at least to the showerhead height, and ideally ceiling height for a spa feel.
• Install the shower door or enclosure. A frameless glass door maximizes the sense of space; a curtain on a rod is the most budget-friendly route.
• Install shower fixtures. Valve, showerhead, hand shower, and any body sprays or rain heads go in last.

Take a look at our curated collection of shower systems and enclosures to find the right combination of function and style for your new space.

Budgeting for Your Bathroom Conversion

Costs vary widely based on your location, the complexity of your plumbing, your material choices, and whether you need structural work. As a general framework, simple tub-to-shower conversions using a prefab base and basic tile can come in on the lower end, while a custom tiled shower with a frameless glass enclosure or a fully plumbed freestanding tub installation will sit at the higher end. Always get at least three quotes from licensed contractors and confirm that permits are included in the scope of work. The fixture itself — whether a freestanding soaking tub or a complete shower system — is often a smaller portion of the total project cost than the labor and finish materials.

Frequently Asked Questions

Do I need a permit to convert a shower to a tub?

In most U.S. jurisdictions, yes. Any work that involves moving or modifying plumbing, altering the floor structure, or changing the use of the space typically requires a permit. Requirements vary by city and county, so check with your local building department before starting. Working without required permits can complicate home sales and void homeowner's insurance claims related to that work.

How long does a bathroom conversion take?

A straightforward tub-to-shower conversion using a prefab base can take as little as two to three days for an experienced crew. A custom tiled shower or a freestanding tub installation with floor plumbing and custom tile work can take one to two weeks, especially when accounting for tile setting and grout curing time. Add extra time if any unexpected subfloor or plumbing issues arise during demo — they're common in older homes.

Will removing my only bathtub hurt my home's resale value?

It can. Most real estate professionals recommend keeping at least one bathtub in the home, particularly if you have only one full bathroom. Families with young children often prioritize homes with a tub, and some buyers will pass on a home with none. If you have multiple bathrooms, converting one tub to a shower is generally less of a concern. When in doubt, talk to a local real estate agent who knows your specific market before making the final call.

Shop HomeBeyond

Ready to bring your bathroom vision to life? Whether you're drawn to the elegance of a sculptural freestanding bathtub or the clean, modern lines of a new shower system, HomeBeyond has the fixtures to match your style and your space. Browse both collections to find the right fit — and don't hesitate to reach out to our team if you need help narrowing down your options.