The Ultimate Guide to Bathtub Sizes: Picking the Perfect Tub

Not all bathtubs are created equal, and that's a good thing. Tubs come in various sizes that allow for different bathroom configurations and bathing experiences. 

Whether you have a compact bathroom or a spacious retreat, the right bathtub size ensures a perfect fit. From compact to oversized, Empava offers a range of luxury tubs designed to enhance your space. 

Let’s break down bathtub sizes so you can find your perfect soak.

Understanding Bathtub Sizes and the Best Tub Types for Each

Finding the right bathtub size isn’t just about measurements—it’s about matching the tub to your space and bathing preferences. Whether you need a compact solution or extra room to stretch out, knowing the standard sizes can help you make the right choice.

Standard Bathtub Sizes 

(60–72 inches long, 30–32 inches wide, 14–20 inches deep)
 These are the most common tub sizes and likely the type you envision when you think of tradititubsl tub. Standard bathtubs fit most homes and provide a comfortable bathing experience without overwhelming the bathroom. They work best for medium-sized spaces and come in alcove and freestanding styles.

Compact Bathtub Sizes 

(48–60 inches long, 28–30 inches wide, 12–18 inches deep)
Compact tubs are ideal for small bathrooms, apartments, and guest baths with limited space. These tubs maximize functionality while still offering a full soak. Alcove, corner, and walk-in tubs often fall into this category.

Oversized Bathtub Sizes 

(72+ inches long, 32–40 inches wide, 20+ inches deep)
For those who love long, luxurious soaks, oversized bathtubs provide extra depth and legroom. These tubs work well in large bathrooms and often come in freestanding, slipper, and whirlpool designs.

Empava Tub Options 

​Empava offers diverse bathtubs, each designed to suit various bathroom layouts, aesthetics, and functional needs. Below is a breakdown of Empava’s bathtub categories, including their materials, styles, and available sizes with length, width, and depth ranges.​

1. Freestanding Tubs

Elegant and versatile, freestanding tubs serve as a stunning focal point in any bathroom. They don’t require a built-in enclosure, making them adaptable to various layouts.

• Materials: Constructed from high-quality acrylic reinforced with fiberglass, ensuring durability, effective heat retention, and a sleek, easy-to-clean surface.​
  
  
• Styles: Available in modern minimalist and high-back slipper designs. Some models feature ergonomic contours for enhanced comfort.​
  
  

Available Sizes:

Compact:

• Length: 48–60 inches
  
  
• Width: 28–30 inches
  
  

Standard:

• Length: 60–72 inches
  
  
• Width: 30–34 inches
  
  

Oversized:

• Length: 72+ inches
  
  
• Width: 34–48 inches
  

2. Whirlpool Tubs

Featuring hydrotherapy jets, whirlpool tubs offer a spa-like experience, relieving muscle tension and promoting relaxation.

• Materials: Made from premium acrylic with fiberglass reinforcement, providing a smooth surface that maintains its luster over time.​
  
  
• Styles: Designed with built-in hydrotherapy jets, ergonomic seating, and optional LED lighting for an immersive experience.​
  
  

Available Sizes:

Standard:

• Length: 60–72 inches
  
  
• Width: 30–34 inches
  

Oversized:

• Length: 72+ inches
  
  
• Width: 34–48 inches
  
  

3. Alcove Tubs

Installed within a two or three-wall enclosure, alcove tubs are space-efficient and commonly used in standard bathroom layouts.

• Materials: Crafted from durable acrylic, ensuring longevity and a polished, easy-to-maintain surface.​
  
  
• Styles: Features clean lines, integrated aprons, and a seamless look that blends well with various bathroom aesthetics.​
  
  

Available Sizes:

Compact:

• Length: 48–60 inches
  
  
• Width: 28–30 inches
  

Standard:

• Length: 60–72 inches
  
  
• Width: 30–59 inches

4. Walk-In Tubs

Prioritizing safety and accessibility, walk-in tubs feature a low step-in height and built-in seating, making them ideal for individuals with mobility concerns.

• Materials: Made from durable acrylic with a non-porous surface, ensuring easy cleaning and resistance to mold and mildew.​
  
  
• Styles: Designed with a low-threshold entry, built-in handrails, and ergonomic seating. Some models include therapeutic jets for added relaxation.​
  
  

Available Sizes:

Compact:

• Length: 48–54 inches
  
  
• Width: 28–40 inches

5. Custom Tubs: Features That Fit Your Lifestyle

Empava’s custom tubs allow homeowners to personalize their bathing experience with advanced features and a choice of sizes.

• Materials: Most custom tubs use the same high-quality acrylic with fiberglass reinforcement, ensuring durability, heat retention, and an easy-to-clean surface.
  

Customization Options:

• Hydrotherapy Jets: Add whirlpool or air jets for a therapeutic massage experience.
  
  
• Chromatherapy Lighting: Soft LED lighting to create a relaxing ambiance.
  
  
• Ergonomic Contours: Customizable backrests and armrests for personalized comfort.
  
  
• Smart Drain Placement: Choose left- or right-side drain configurations to fit your plumbing setup.
  
  
• Heated Surface Technology: Available in select models to keep water warm for extended soaking.
  
  

Available Sizes:

Standard:

• Length: 60–72 inches
  
  
• Width: 30–34 inches
  

Oversized:

• Length: 72+ inches
  
  
• Width: 34–48 inches
  

6. KBIS Avantist Series: Smart Luxury

Empava’s KBIS Avantist Series bathtubs represent the pinnacle of luxury and smart design, combining hydrotherapy, LED lighting, and thermostatic controls for a high-end spa experience.

• Materials: Made from high-quality acrylic reinforced with fiberglass, ensuring durability, heat retention, and an easy-to-clean surface.
  
  
• Styles: Available in freestanding and alcove designs, featuring sleek, modern aesthetics with deep soaking capabilities. Some models include inline heaters, whirlpool jets, and chromotherapy lighting.
  
  

Customization Features:

• Revi-Skin oxygen therapy: The KBIS tubs are the first to integrate this unique technology into bathtubs.  
• Advanced pillow design: These tubs are the first to adopt a round pillow specifically for use by those with cervical spondylosis. 
• Methanal-free SERC material: The first tubs to adopt this specialized material. 
• Hydrotherapy Massage Jets: Combination whirlpool and bubble jets provide targeted muscle relief.
• Pet-Friendly: The first tubs that accommodate pet washing into the design.
• Removable skirts: The first tubs to offer this feature.
  
  

Available Sizes:

Standard:

• Length: 71inches
  
  
• Width: 42 inches
  

Oversized:

• Length: 71+ inches
  
  
• Width: 47–51 inches

Key Considerations When Choosing a Bathtub Size
 

Finding the perfect bathtub isn’t just about aesthetics—it needs to fit your space, lifestyle, and installation requirements. Before making your choice, consider these key factors.

Space Requirements: Measuring for the Perfect Fit

Measure your available space, accounting for clearance around the tub, plumbing access, and doorways. Keep in mind that some freestanding tubs require more open space, while alcove tubs are designed to fit snugly against walls.

We will discuss how to select the right tub for your bathroom size further into the article.

Comfort & Functionality: Features That Matter

The best bathtub is one that feels good to use. Consider how much legroom you need, the depth for soaking, and whether you prefer a reclined backrest or a deeper basin. A tub that looks perfect in your bathroom won’t matter if it’s uncomfortable for daily use. Empava tubs offer a range of features to maximize comfort and functionality, including:

• Ergonomic backrests for optimal relaxation.
• Deep soaking basins for full-body immersion.
• Textured slip-resistant surfaces to enhance safety.
• Integrated armrests for added support and comfort.
• Hydrotherapy jets (available in Whirlpool and air-jetted models) for muscle relief.

Installation & Plumbing Requirements: What to Plan

Unless you’re handy and a licensed plumber, enlisting an expert for tub installation is a smart move. Improper installation can lead to leaks, water damage, and costly repairs—not just for your home but potentially for others in your building if you're in a multi-unit residence.

Structural & Tile Work – Some tubs, especially drop-in and alcove styles, require installation behind the tile, which may mean retiling your walls or floors.

Freestanding Tub Placement – While these tubs offer flexibility, they can’t go just anywhere. Your plumbing must be positioned correctly for proper drainage and water flow.

Water & Capacity Needs – Large tubs hold more water, which means checking that your water heater can handle the demand.

Additional Plumbing for Whirlpool Tubs – If you’re opting for a Whirlpool or air-jetted tub, additional plumbing and electrical work may be required to install the jets and ensure safe operation.

Material & Durability: Why Size and Material Go Hand-in-Hand

The material of a bathtub affects its weight, heat retention, and durability. Acrylic tubs are lightweight and versatile, while cast iron tubs hold heat longer but can be significantly heavier. Larger tubs require materials that balance strength with ease of installation.

Choosing the Right Bathtub Based on Your Bathroom Size & Layout

Your bathroom’s size and layout play a crucial role in determining the best bathtub for your space. The right fit balances comfort, functionality, and aesthetics while ensuring a seamless installation.

Small Bathrooms: Maximizing Space Without Sacrificing Comfort

Best Options: Compact alcove tubs, walk-in tubs, and corner bathtubs.

Recommended Empava Tubs: 48-inch Freestanding Soaking Tub, 52-inch Walk-In Tub.

Placement Tip: Place the tub along the shortest wall to free up movement space.

Medium-Sized Bathrooms: Balancing Aesthetics and Functionality

Best Options: Freestanding and alcove tubs.

Recommended Empava Tubs: 59-inch Freestanding Bathtub, 67-inch Oval Freestanding Tub.

Placement Tip: Center a freestanding tub as a focal point or install an alcove tub along a side wall.

Large Bathrooms: Designing a Luxurious Bathing Space

Best Options: Oversized freestanding tubs, slipper tubs, and Whirlpool bathtubs.

Recommended Empava Tubs: 72-inch Whirlpool Bathtub, 75-inch Freestanding Slipper Tub.

Placement Tip: Use a freestanding tub as a centerpiece in an open-concept bathroom.

Empava Tubs: The Perfect Fit

Finding the right bathtub size is more than just picking a model—it’s about creating a space that fits your lifestyle, home, and relaxation needs. Explore Empava’s range of tubs today and find the perfect fit for your space.