The layout of your main bathroom is an important consideration when designing or renovating your home. Choosing the right layout can maximize both function and aesthetic appeal. This article will explore the most popular main bathroom layout options, along with the pros, cons and best practices for each.

Types of Main Bathroom Layouts

There are several common layouts used for main bathrooms:

Single Wall Layout

This simple layout places the sink, toilet and bathtub/shower along one wall. This maximizes floor space and allows for easy traffic flow.


  • Efficient use of space
  • Easy to clean and maintain
  • Simple, budget-friendly option


  • Limited privacy
  • Tight space between fixtures
  • Not suited for large bathrooms

Opposite Wall Layout

Also known as a U-shaped layout, this places the sink on one wall and the toilet and bathtub/shower on the opposite wall. A bit more privacy is achieved.


  • Allows for more privacy
  • Easier to move around between fixtures
  • Feels more spacious than single wall layout


  • Wasted space in center of room
  • Can feel closed in if bathroom is small

L-Shaped Layout

The toilet and bathtub/shower are placed on perpendicular walls in an L-shape. The sink can go on either short wall.


  • Provides privacy between toilet and bathing area
  • Makes good use of corner space
  • Feels spacious and open


  • Wasted space in non-used corner
  • Can limit natural light

Walk-Through Layout

This layout creates defined zones by placing the toilet behind a separate door. The sink area serves as a transition into the bathtub/shower zone.


  • Maximizes privacy
  • Allows for two users at once
  • Feels luxurious and spa-like


  • More difficult access between areas
  • Requires larger bathroom space
  • Added expense of extra door

Best Practices for Main Bathroom Layouts

When selecting and designing your main bathroom layout, keep these best practices in mind:

Prioritize Clear Traffic Flow

The layout should allow for easy movement into, within and out of the bathroom. Avoid bottlenecks or tight squeezes between fixtures or walls.

Allow Adequate Clearances

Follow building codes for minimum required clearances between fixtures and walls. This ensures accessibility and functionality.

Place Fixtures Thoughtfully

The layout should separate noisy fixtures like toilets from relaxation zones like tubs. Group sink, toilet and shower near each other for efficiency.

Consider Sightlines Carefully

Minimize views into the bathroom from entryways. Avoid placing toilet in direct view of bathtub or shower.

Include Adequate Storage

Incorporate cabinetry, organizers and shelving to keep necessities tidy and conveniently accessible.

Allow for Natural Light and Ventilation

Include windows and exhaust fans to keep the bathroom fresh, reduce mold and mildew, and eliminate odors.

Accommodate Future Needs

Consider aging-in-place elements like grab bars, curbless showers and comfort height toilets for long-term flexibility.

Main Bathroom Layout Ideas

When designing your main bathroom, look to these tried-and-true layouts for inspiration:

Spa Retreat

Create a relaxing oasis with a freestanding tub situated as a focal point, open shower, double vanity sinks, and peaceful neutral colors.

Vintage Charm

Channel turn-of-the-century elegance with a clawfoot tub, pedestal sink, hexagon floor tile, and vintage-style fixtures.

Modern and Sleek

Achieve a contemporary vibe with floating vanities, frameless shower enclosure, vessel sinks, and sleek surfaces like glass tile accents.

Small But Mighty

Maximize function in a modest footprint with space-saving measures like a corner shower, narrow console sink, and compact elongated toilet.

His and Her Split

Design personalized spaces with a double vanity split by a privacy wall, separate toilet stalls, and custom storage for each user.

Spa-Inspired Master

Indulge in a master bath suite with dual sinks, soaking tub, multi-head shower, and high-end surfaces like marble and granite.

Rustic and Relaxed

Embrace cottage charm with a stone vessel sink, wood shelving, hammered metal tub, and textured tile like subway or hexagon styles.

Single Wall Main Bathroom Layout

The single wall layout is a practical and popular option for main bathroom designs. By positioning the major fixtures along one wall, it efficiently utilizes space while still allowing for ample functionality. Here are some tips for successfully executing this layout:

Choose the Right Wall

Pick a wall that allows for drainage and plumbing access. An exterior wall or shared wall with a kitchen or laundry room works best.

Include Proper Clearances

Maintain at least 15 inches beside and 21 inches in front of each fixture for comfortable access and mobility.

Order Fixtures Thoughtfully

Place the toilet between the sink and tub/shower to allow privacy. Keep sink accessible from entryway for convenience.

Incorporate Storage

Add a floor-to-ceiling cabinet between the toilet and tub/shower. Opt for open shelving beside sink for displaying towels.

Make Use of Vertical Space

Install a recessed medicine cabinet above the sink. If height allows, add shelving high on the wall for extra storage.

Allow Natural Light In

Situate a frosted window above the tub/shower or toilet for light and ventilation without sacrificing privacy.

Define Zones with Flooring

Use separate tile or vinyl flooring to distinguish the tub/shower zone from the dry area with the sink and toilet.

Upgrade with Details

Add interest with penny tile as a tub surround, wallpaper inside a glass shower enclosure, or ornate mirror framing.

With smart planning and custom details, a single wall layout can be both efficient and eye-catching in your main bathroom design.

Opposite Wall Main Bathroom Layout

The opposite wall, or U-shaped, layout angles the toilet and tub/shower across from the sink. This creates a sense of spaciousness while allowing for defined activity zones. Follow these guidelines when designing an opposite wall bathroom layout:

Choose a Focal Point

Make the tub or shower alcove the star by facing it toward the entryway. Add eye-catching tile, lighting or windows.

Define Traffic Flow

Place the entry door near the sink so it acts as a transition into the room. Avoid cramped triangle traffic patterns between all fixtures.

Allow Plenty of Leg Room

Keep at least 32 inches between the centerlines of a bathtub and toilet or opposite fixtures.

Incorporate Mirrored Cabinets

Installing mirrored medicine cabinets above sinks enhances the feeling of width in the space.

Include Private Toilet Zone

Use a folding privacy partition or curtain to conceal the toilet area. This prevents the toilet from being the first thing seen.

Extend Floor Tile

Use rectangular floor tile to make the space feel wider. Running tile vertically can make the room feel taller.

Add Visual Interest

Break up long expanses of walls with wainscoting, framed artwork or architectural molding details.

Upgrade Window Treatments

Hang floor-length curtains on the window or choose an obscure glass window for privacy.

Get the most from an opposite wall layout by exaggerating the dimensions with careful spatial planning and decorative finishes.

L-Shaped Main Bathroom Layout

The L-shaped bathroom layout positions the bathtub and toilet perpendicular to each other with the sink on one end. This creates an efficient and private layout for a main bathroom. Consider these tips when designing an L-shaped bath:

Choose the Right Handedness

Pick right or left-handed based on plumbing and door locations. Place tub and shower on plumbing wall for efficiency.

Zone Areas Discretely

Separate the toilet around a corner wall to prevent it from being seen immediately. Use a partition or curtain for the tub/shower.

Incorporate Accessible Features

Allow ample room for grab bars, a built-in seat in the shower, and a comfort height toilet.

Use Glass Dividers

Take advantage of borrowed light and an open feel by using obscures glass panels to divide zones.

Add Built-In Storage

Tuck narrow shelving into vacant corners or install a floor-to-ceiling cabinet for hidden storage.

Make Use of the Sink Wall

Opt for a double vanity or a long single vanity to maximize countertop space for getting ready.

Include a Makeup Station

Incorporate a lighted mirror and pull-out seat or stool on the sink side for easy makeup application.

Upgrade the Corner

Choose an eye-catching tile pattern or decorative mosaic to make the tub/shower corner a focal feature.

With smart spatial planning and luxurious finishes, an L-shaped layout can feel both functional and elegant.

Walk-Through Main Bathroom Layout

The walk-through layout includes doors to “zone” the toilet and bathtub/shower areas off the entry and sink space. This allows for privacy between each area and a spa-like experience. Consider these tips for a successful walk-through bath:

Incorporate Doors Strategically

Place swinging or sliding doors at the toilet and tub/shower openings to discretely conceal each zone.

Choose Wide Doorways

Openings should be at least 32 inches wide to accommodate walkers or wheelchairs and allow easy movement.

Design a Spacious Landing

The entry should act as a landing area big enough for two people with a bench or chair.

Highlight the Tub Zone

Make the tub area feel like a relaxing oasis with mood lighting, windows, built-in seating and luxurious finishes.

Include His/Her Sinks

Allow for personalized organization with two separate vanities on either side of the entry.

Add Sound Baffling

Install insulation, acoustical wall panels or other soundproofing materials to prevent echoing.

Incorporate Spa Touches

Include features like heated floors, towel warmers, and a wall-mounted TV to enhance the high-end feel.

Showcase Standout Finishes

Opt for marble tile, antiqued mirrors, sconce lighting and other ornate details to elevate the space.

With strategic zoning and indulgent finishes, a walk-through bathroom layout elicits a sense of serenity and luxury.

Small Main Bathroom Layouts

Don’t let a small footprint discourage you from creating a beautifully functional main bathroom. With careful planning and space-saving measures, even the most modest bathroom can provide ample convenience and style. Consider these tips for small main bathroom layouts:

Maximize Every Inch

Situate all fixtures and features thoughtfully to capitalize on every bit of available space. Allow proper clearances between fixtures and walls.

Choose Narrow Fixtures

Opt for narrow sinks, toilets and tubs to maximize floor area. Look for compact or corner models to optimize tight spots.

Incorporate Multipurpose Furniture

Use floating corner shelving that spans over toilets or vanities with built-in drawers to increase storage.

Install Room Extenders

Utilize sliding, pocket or barn-style doors that tuck into walls when open. A mirrored medicine cabinet can make the room feel larger.

Optimize Vertical Real Estate

Hang wall cabinets flush to the ceiling and incorporate floor-to-ceiling shelving on vacant walls.

Look for Hidden Storage

Tuck narrow shelving into vacant corners or unused nooks. Opt for bathroom vanities and cabinets with pull-out drawers built in.

Limit Bulky Features

Avoid expansive soaking tubs, double sinks or his/her vanities. Stick to basic essentials like a tub/shower combination.

Infuse Style with Finishes

Make up for limited space with high-end countertops, ornate fixtures, mosaic tile and other luxe accents.

With clever furnishings and a less-is-more approach, even the most modest main bathroom can feel open, airy and refreshing.

Universal Design Main Bathroom Layouts

Universal design focuses on creating bathrooms usable by all people, regardless of age or ability. The ideal universal bathroom has an open layout allowing ample room to maneuver a wheelchair or walker. Here are some universal design tips:

Make Doorways Wide

Entry doors should be at least 32 inches wide and swing outward to accommodate wheelchairs and walkers. Consider pocket doors.

Include Open Floor Space

Allow ample open floor area and clearances around fixtures. Include a 60-inch diameter turning circle.

Install Grab Bars Strategically

Place grab bars beside toilets and inside showers and tubs. Opt for flip-down bars or ones built into walls.

Use a Curbless Shower

Eliminate shower curbs and use a zero-threshold design for easy wheelchair roll-in access.

Raise Seated Fixtures

Toilets, showers seats and tubs should be ADA-compliant height for easier transfers.

Choose Easy-Access Sinks

Opt for vessel-style sinks on full-height vanities or pedestals to allow wheelchair users to comfortably roll underneath.

Incorporate Motion Sensor Lights

Look for hands-free faucets, soap dispensers and light switches for increased independence.

Store Necessities in Reach

Keep commonly used items in easy-access floor-level drawers and open shelving.

Accentuate Safety Features

Use contrasting colors on toilet seats, grab bars, flooring and door edges for increased visibility.

By focusing on accessibility, comfort and independence, a universal design bathroom layout can be safe and stylish for users of all ages and mobility levels.

Main Bathroom Storage Solutions

Incorporating ample and smart storage is key to keeping main bathrooms organized and clutter-free. These solutions can help maximize storage space:

Under-Sink Storage

Optimize the empty space under bathroom sinks with a combination of open shelves and closed cabinets for maximizing hidden storage. Install pull-out drawer organizers to access items in back.

Medicine Cabinets

Recessed or surface-mount medicine cabinets provide easy access to toiletries while keeping them concealed behind a mirror door. Options with electrical outlets are great for plugging in electric toothbrushes and shavers.

Niche Shelving

Take advantage of empty wall space by recessing shelving into alcoves. These customized nooks can accommodate bottles and toiletries. Size them to fit specific items like shampoo bottles.

Over-the-Toilet Racks

Install storage racks or cabinets over toilets to take advantage of an often under-utilized area. Opt for enclosed cabinets for discretion.

Corner Shelving

Make use of vacant corner nooks by installing angled corner shelves or vertical shelving units. Great for stowing extra towels or toilet paper rolls.

Drawers and Pull-Outs

When selecting vanities, look for models with built-in drawers for holding bathroom linens and toiletries out of sight. Custom pull-out cabinetry organizers also maximize space.

Laundry Hampers

Incorporate a lidded laundry hamper into cabinetry or opt for freestanding hampers that tuck into tight spots like corners or the ends of vanities.

Wall Cabinets

Mount cabinets flush to the ceiling to hide away infrequently used items. Opt for ones with organizers and baskets for customizability. Choose mirrored doors for an even larger look.

By creatively utilizing every inch, you can build a main bathroom with ample and easily-accessible storage space for all necessities.

Common Main Bathroom Remodeling Mistakes to Avoid

Remodeling a main bathroom can quickly go over budget or fail to meet expectations without careful planning. Avoid these common pitfalls when taking on a bath remodel:

Not Planning for Long-Term Needs

Failing to consider aging-in-place elements like grab bars and comfort height fixtures early on can lead to unnecessary future costs.

Choosing Trendy Over Timeless

Select classic styles and palette colors that will remain desirable over decades rather than trends that quickly date the space.

Not Inspecting the Subfloor

Neglecting to check for rotten subfloor issues early on can cause plumbing leaks, mold growth and flooring failures down the road.

Undersizing Key Components

From the electrical panel to the floor framing to the HVAC system, make sure home infrastructure can support added electrical and plumbing loads.

Overlooking Permits

Skipping needed plumbing, electrical and building permits can risk failing inspections and even make your home uninsurable.

Not Budgeting for Hidden Costs

Failing to account for expenses like vent fan ducting, new piping, added circuits and structural work can quickly inflate budgets.

Using the Wrong Contractor

Hiring inexperienced contractors rather than licensed professionals for complex jobs like plumbing and electrical can compromise safety.

Changing Course Mid-Project

Making significant layout or finish changes partway through can throw timelines and budgets off track. Finalize designs upfront.

Ignoring Storage Needs

Not planning adequate storage cabinetry and shelving can leave bathrooms cluttered post-remodel. Measure existing storage and identify must-haves.

Skimping on Key Materials

Choosing inferior fixtures or subpar building materials to save money can lead to premature repairs, leaks and replacements.

With thorough planning, high-quality materials and help from qualified pros, you can avoid common pitfalls and achieve a main bath remodel you’ll enjoy for decades.

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