Full Bathroom Floor Plans: Smart Layouts for Every Space
A full bathroom has all four essentials — sink, toilet, shower, and bathtub. From compact designs to luxury layouts, discover floor plans that fit your home.

A full bathroom floor plan includes all four main elements: a sink, toilet, shower, and bathtub. The layout can range from small and practical to spacious and luxurious.
In this guide, we’ll walk through popular designs for small, guest, and primary bathrooms to inspire your own project.
Small Full Bathrooms
Often, a secondary bathroom in a home may be designed as a compact full bathroom. This bathroom type works well as a kid’s bathroom due to the multiple bathing options: you have a bathtub for when the kids are little, and a shower for when they are older.
"Three in a row" layout
A popular small full bathroom layout is the “three in a row” - with the sink vanity, toilet, and combined bathtub/shower along one wall. This layout allows you to fit a full bathroom into a 5 ft x 8 ft (about 1.5 m x 2.4 m) space. It’s also the most cost-effective design since it places all the plumbing along one wall.

Center layout
If your available space is more of a square shape, you may consider a center layout for your full bathroom floor plan. You enter through the bathroom door into the center of the room. On one wall, you’ll see the sink and toilet. On the opposite wall is the bathtub/shower.

Split layout
A popular split full bathroom layout divides the main 4 components into two rooms for flexibility and privacy. For example, the first room usually includes just the sink (or sometimes the sink and toilet). Then a pocket or swing door opens into the 2nd room containing the tub/shower and toilet. This layout has several benefits: privacy - someone can be using the sink, while another takes a shower. Plus, the steam and moisture remain in the second room.

Full Guest Bathrooms
A full guest bathroom is a welcoming touch for in-laws or overnight visitors. By including both a shower and a tub, you make the space flexible for any preference. Add practical touches like towel hooks, a spacious vanity, and storage for toiletries to create a hotel-like experience for your guests.

Full Primary Bathrooms
A more extended vanity with two sinks is a popular feature for a full primary bathroom so that a couple can easily get ready simultaneously. You’ll likely need at least 50 sq ft of space (4.6 m2) or more for a full bathroom to accommodate a double sink.
If one of you prefers a shower and another likes a long soak in a tub, then you may opt for a standalone bathtub and a separate walk-in shower. This feature takes your floor plan size up to 80 sq ft (7.4 m2) and above range.
As you increase the floor plan size above 100 sq ft (9.3 m2), you have a lot more flexibility. Some popular design features for larger bathrooms include:
- A large walk-in shower with two shower heads.
- Additional vanity space or a seated makeup area.
- Linen and towel storage
- A steam room
- Space for a washer and dryer


Create Your Bathroom with RoomSketcher
With the RoomSketcher app, it’s easy to plan, customize, and visualize your space before you start building.
- Draw your floor plan in minutes
- Try different layouts to see what fits your space
- Experiment with finishes and materials
- Generate professional 2D and 3D Floor Plans
- Step inside your project with interactive Live 3D
Related Articles

Jack and Jill Bathroom Designs That Work for Every Home
A Jack and Jill bathroom is a smart way to maximize space while giving two rooms convenient en-suite access. With the right layout, a Jack-and-Jill bathroom can provide privacy, efficiency, and a touch of luxury, all in one design.

How to Design a 3/4 Bathroom: Sizes and Layout Ideas
A ¾ bathroom includes a sink, toilet, and shower in a compact, space-saving layout. Explore typical sizes, smart floor plans, and design tips to create a functional bathroom that makes the most of every inch.

16 Best Bathroom Design Software (Free & Paid)
Read through our list of the 16 best bathroom design software to plan the layout and design of your bathroom.