Most tiny home bathrooms land somewhere between 30 and 70 square feet. That's not a lot of room, but it's enough for a full shower, toilet, and sink if you choose fixtures designed for small spaces. Standard fixtures from a big-box store will technically fit — but purpose-built compact fixtures make the difference between a bathroom that feels cramped and one that feels intentional. This guide covers the best options in each category, all available on Amazon.
Planning Your Tiny Bathroom Layout
Before picking fixtures, settle on a layout. The most common tiny home bathroom configurations:
- Wet bath (combo): Shower, toilet, and sink share one wet space — no separate shower enclosure. Very space-efficient. Popular in THOWs (tiny homes on wheels).
- 3/4 bath with corner shower: Separate corner shower stall, compact toilet, and small sink. The most livable option for a permanent tiny home.
- Split bath: Toilet and sink in one small room, shower in an adjacent space or outdoor shower setup. Works well for off-grid or warm-climate builds.
Toilets: Space-Saving Options That Actually Work
What to Look For
- Compact elongated or round bowl: Standard elongated bowls project 28–30" from wall. Compact elongated models get this down to 24–26". Round bowls are shorter still but less comfortable for most adults.
- Wall-mount option: Wall-hung toilets save floor space and make cleaning easier. Require a carrier frame inside the wall — plan for this during the build.
- Dual flush: Conserves water — important when you're on a tank or well system.
TOTO Entrada Close Coupled Round Toilet
TOTO is one of the most trusted toilet brands, and the Entrada's round bowl keeps projection to around 26" — a meaningful difference in a small bathroom. Dual-flush, WaterSense certified, and available in cotton white or bone to match most bath setups. A reliable, no-fuss choice that will last decades.
- Round bowl — shorter projection than elongated
- WaterSense certified — 1.28 GPF
- TOTO quality and reliability
- Straightforward installation
Nature's Head Self-Contained Composting Toilet
If you're off-grid or can't connect to septic, Nature's Head is the composting toilet tiny home owners recommend most. No water needed, minimal odor when maintained properly, and a proven design used in boats and RVs as well as tiny homes. Requires 12V power for the fan (easily solar-powered) and occasional emptying of the solid compartment.
- No water or septic connection required
- Virtually odor-free with proper use
- Solid construction — made in USA
- Separate liquid diversion reduces maintenance frequency
- Popular in the tiny home community for years
Sinks: Small Footprint, Full Function
What to Look For
- Corner sinks: Mount in a corner to reclaim wall space — a good fit for wet baths or very small bathrooms
- Wall-mount sinks: No vanity cabinet underneath means more visual floor space and easier cleaning
- Vessel sinks: Sit on top of a small surface or shelf — stylish and compact, though taller than undermount options
American Standard Cadet Corner Sink
A wall-mounted corner sink that uses otherwise dead corner space. At 19" across, it's genuinely functional for hand-washing and face-washing without eating into the middle of the bathroom. American Standard quality at an accessible price. Requires wall-mount hardware (sold separately) and a pedestal or bracket.
- Corner mount — uses dead space efficiently
- Wall-mount keeps floor clear
- 19" basin — functional without oversized footprint
- Vitreous china — durable and easy to clean
KOHLER Memoirs 24" Pedestal Sink
When you want a sink that feels like a real bathroom (not a camping setup), a pedestal sink delivers. Kohler's Memoirs at 24" wide is one of the more compact pedestal options from a name-brand manufacturer. The pedestal conceals supply and drain lines for a clean look, and the depth is modest enough for small spaces.
- Classic pedestal look — feels like a real bathroom
- Conceals plumbing lines
- Kohler quality and warranty
- 24" width — compact for a pedestal design
Showers: Small Stalls Done Right
What to Look For
- 32"x32" or 36"x36" stalls: The most common tiny home shower sizes. 32x32 is the minimum for comfortable use; 36x36 is much better if space allows.
- Neo-angle or corner showers: Fit into corners and use less room than a straight stall
- Low-threshold or curbless: Easier entry and a more modern look; curbless requires proper slope to the drain
- Prefab shower kit: Includes pan, walls, and door — faster than tile and ideal for DIY builds
DreamLine Flex 32"x32" Shower Kit
DreamLine makes well-regarded shower kits in compact sizes. The Flex series at 32"x32" includes a neo-angle or square enclosure with tempered glass door and a low-profile tray. Everything ships together for a straightforward DIY install. The glass door makes the space feel larger than a curtain alternative.
- 32"x32" — true tiny home sizing
- Tempered glass door included
- Low-profile tray — easy step-in
- All components ship as a kit
- Decent DIY instructions
Fixtures and Accessories That Make a Big Difference
Low-Flow Showerhead
In a tiny home on well water or a tank, water conservation matters. A good low-flow showerhead gets you to 1.5–1.8 GPM (vs. 2.5 GPM standard) without feeling like a trickle. The High Sierra Low Flow Showerhead (~$30 on Amazon) is consistently praised for delivering real water pressure at 1.5 GPM.
Medicine Cabinet with Mirror
In a tiny bathroom, a recessed medicine cabinet replaces a separate mirror and provides hidden storage — two wins in one. The Kohler Archer Recessed Medicine Cabinet (~$150–$200) is a clean, reliable option that fits between standard stud spacing.
Towel Bar and Hook Combos
Vertical space is your friend. A combination towel bar with hooks below handles two functions on one wall mount. The mDesign Metal Towel Bar with Hooks (~$25) is a practical, well-reviewed option that installs in minutes.
Exhaust Fan
Non-negotiable for moisture control. Size it to the bathroom volume — most tiny home bathrooms need a 50–70 CFM fan. The Panasonic WhisperCeiling FV-08VQ5 (~$80) is whisper-quiet and reliably effective. Duct it to the exterior, not into a wall cavity or attic.
What a Complete Tiny Bathroom Setup Costs
- Compact toilet: $200–$400
- Corner or wall-mount sink: $120–$380
- Prefab 32"x32" shower kit: $400–$700
- Tankless water heater: $130–$750 (see our water heater guide)
- Exhaust fan: $60–$120
- Accessories (mirror, towel bars, hooks): $100–$200
- Total fixture budget: $1,000–$2,500 for a complete setup
Labor for rough plumbing and installation adds $1,500–$4,000+ depending on complexity and your market.
Related guides: Best tankless water heaters · Best water filters for tiny homes · Complete utilities guide · How to furnish a tiny home