Acrylic vs Stone Resin Bathtubs in 2026: Key Differences
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When comparing an acrylic vs stone resin bathtub, you look at material composition and structural design. Both products are freestanding soaking tubs with a 59-inch length, but their construction differs. The WOODBRIDGE model uses black acrylic reinforced with resin and fiberglass, while the ANZZI tub features an acrylic and solid surface build. You need to weigh weight, capacity, and finish when deciding which fits your bathroom needs.
Key differences
| Aspect | WOODBRIDGE 59" Matte Black Freestanding Tub | ANZZI 59 Inch Freestanding Soaking Tub |
|---|---|---|
| Material | 100% high gloss black acrylic with ashland resin and fiberglass reinforcement | Acrylic and solid surface |
| Weight | 88 pounds | 77.2 pounds |
| Water Capacity | Not listed | 67.4 gallons |
| Soaking Depth | 22 7/8 inches (exterior depth) | 14.8 inches |
| Color/Finish | Black/Matte Black | Ribbed White |
| Drain Location | Matte Black | Not listed |
Which one should you choose?
Choose WOODBRIDGE 59" Matte Black Freestanding Tub if
- You prefer a darker, matte black aesthetic for your bathroom
- You want a tub with a thicker exterior wall for insulation
- You need a higher exterior height for easier access
Choose ANZZI 59 Inch Freestanding Soaking Tub if
- You want a lighter tub that is easier to move during installation
- You need a known water capacity for filling calculations
- You prefer a bright, glossy white finish to reflect light
Verdict: Choose the WOODBRIDGE if you prioritize a bold black look and reinforced insulation. Select the ANZZI if you need a lighter unit with a verified water capacity and a traditional white finish. Both offer a 59-inch footprint for standard bathroom layouts.
Acrylic vs Stone Resin Bathtubs
Material composition
The WOODBRIDGE tub is constructed from 100% high gloss black Lucite acrylic, reinforced with Ashland resin and fiberglass. This combination provides a durable shell with a matte black finish. The ANZZI model lists its material as acrylic and solid surface in the key specs, though the attributes section identifies it as stone resin. Both designs prioritize a smooth, glossy finish for easy maintenance. You should note this discrepancy in the ANZZI listing when evaluating the core material structure for your bathroom.
Weight and build
Weight impacts installation stability and floor support requirements. The WOODBRIDGE freestanding tub weighs 88 pounds, reflecting its double-walled reinforced design and stainless steel bracket support. The ANZZI soaking tub is lighter at 77.2 pounds. This difference suggests a variation in wall thickness or reinforcement density. If your bathroom floor has strict load limits, the lighter ANZZI unit may be easier to place without additional structural reinforcement compared to the heavier WOODBRIDGE model.
Soaking depth
Soaking depth determines how much of your body is submerged. The ANZZI tub explicitly states a soaking depth of 14.8 inches, which supports full-body immersion. The WOODBRIDGE specifications list an exterior height of 22.9 inches, but do not provide the internal water depth. A deeper soak generally offers better hydrotherapy benefits. Without the internal depth data for the WOODBRIDGE model, you cannot directly compare the immersion experience between the two tubs based on the provided specifications.
Water capacity
Water capacity affects heat retention and refill frequency. The ANZZI tub holds 67.4 gallons of water, allowing for a long, warm soak without frequent top-offs. The WOODBRIDGE listing does not specify its water volume in gallons or liters. However, it mentions a bearing capacity of up to 1000 lbs, which relates to structural strength rather than fluid volume. For consistent temperature maintenance, the known capacity of the ANZZI unit provides a clearer expectation of usage.
Color options
Aesthetic flexibility matters for bathroom design. The WOODBRIDGE tub is available in a matte black finish with drain options in oil rubbed bronze, chrome, brushed gold, and brushed nickel. It also comes in other sizes. The ANZZI tub is listed in white or ribbed white, with fewer color variations. If you prefer a dark, contemporary look, the WOODBRIDGE model offers specific matte black acrylic construction. For a bright, clean aesthetic, the ANZZI white finish may suit your space better.
Which tub fits your space and style
Someone wanting a dark, matte finish
The WOODBRIDGE tub features a matte black acrylic exterior and matching drain hardware. Its dimensions are 59 inches long, 31.5 inches wide, and 22.9 inches deep. The double-walled design helps retain water temperature. This model suits those who prefer a bold, modern aesthetic in a freestanding soaking tub.
Someone prioritizing deep soaking capacity
The ANZZI tub offers a soaking depth of 14.8 inches and a water capacity of 67.4 gallons. It measures 58.9 inches long, 29.1 inches wide, and 22.8 inches high. The flat bottom design supports full body immersion. This model is ideal for users who value maximum water volume for relaxation.
Someone needing a lighter weight tub
The ANZZI model weighs 77.2 pounds, which is lighter than the WOODBRIDGE option at 88 pounds. Both are freestanding and approximately 59 inches long. The ANZZI tub uses an acrylic and solid surface build. This lower weight may simplify installation for those concerned with structural load or handling during setup.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | WOODBRIDGE 59" Matte Black Freestanding Tub | dark-accented bathrooms needing 59-inch tubs | Check price of WOODBRIDGE 59" Matte Black Freestanding Tub on Amazon |
| 2 | ANZZI 59 Inch Freestanding Soaking Tub | small bathrooms needing stable flat-bottom soaking | Check price of ANZZI 59 Inch Freestanding Soaking Tub on Amazon |
The products compared
WOODBRIDGE 59" Matte Black Freestanding Tub
Best for: dark-accented bathrooms needing 59-inch tubs
- Material
- Acrylic (what this guide is about)
- Type
- Freestanding
- Length
- 59
- Drain Location
- Matte Black
- Size
- 59 Inch
- Dimensions
- 59 × 31.5 × 22.9 inches
View on Amazon: WOODBRIDGE 59" Matte Black Freestanding Tub Affiliate link
This freestanding soaking tub measures 59 inches long, 31.5 inches wide, and 22.9 inches deep. It uses 100% Lucite acrylic reinforced with resin and fiberglass. The matte black finish includes a matching drain and overflow. The double-walled design helps retain water temperature. It supports up to 1,000 pounds. This tub suits those seeking a dark, contemporary look in a standard soaking size.
Pros
- 59-inch length fits standard bathroom footprints
- Lucite acrylic with resin and fiberglass reinforcement
- Double-walled construction for heat retention
- 1,000-pound weight capacity
- Matte black drain matches the tub finish
Cons
- Limited to one size option in this listing
- No visible overflow cover details provided
- Heavier at 88 pounds due to reinforcement
Good fit if
- You want a matte black freestanding tub
- You need a 59-inch soaking tub
- You prefer reinforced acrylic durability
Skip if
- You need a stone resin material
- You prefer a glossy white finish
- You require a tub over 60 inches long
Verdict: WOODBRIDGE 59" Matte Black Acrylic Tub offers reinforced durability and heat retention in a dark finish. It fits buyers who want a contemporary matte look without needing a larger footprint.
ANZZI 59 Inch Freestanding Soaking Tub
Best for: small bathrooms needing stable flat-bottom soaking
- Material
- Acrylic (what this guide is about)
- Type
- Freestanding, soaking
- Length
- 58.9 inches
- Water Capacity
- 67 gallon
- Soaking Depth
- 15 in.
- Mount Type
- Freestanding
View on Amazon: ANZZI 59 Inch Freestanding Soaking Tub Affiliate link
The ANZZI Bailey is a freestanding soaking tub made from acrylic and solid surface. It measures 58.9 inches long and holds 67.4 gallons of water. The 14.8-inch soaking depth allows for full body immersion. Its flat bottom design provides stable seating. This compact unit weighs 77.2 pounds and fits smaller bathrooms.
Pros
- 58.9-inch length fits standard small spaces
- 14.8-inch soaking depth for full immersion
- 67.4-gallon water capacity
- Flat bottom for stable seating
Cons
- Acrylic material is less durable than stone resin
- 77.2-pound weight is lighter than stone resin tubs
- 14.8-inch depth is shallower than deep soakers
Good fit if
- You need a compact tub for a small bathroom
- You prefer a flat bottom for stable seating
- You want a glossy white finish
Skip if
- You require a deep soak over 15 inches
- You prefer the durability of stone resin
- You need a tub larger than 59 inches
Verdict: ANZZI Bailey 59 in Acrylic Soaking Tub offers a compact footprint and stable flat bottom for smaller bathrooms. It suits you if you prioritize space efficiency over deep soaking capacity.
Specifications side by side
| Spec | WOODBRIDGE 59" Matte Black Freestanding Tub | ANZZI 59 Inch Freestanding Soaking Tub |
|---|---|---|
| Type | Freestanding | Freestanding, soaking |
| Material | Acrylic | Acrylic |
| Length | 59 | 58.9 inches |
| Drain Location | Matte Black | not stated |
| Water Capacity | not stated | 67 gallon |
| Soaking Depth | not stated | 15 in. |
| Mount Type | not stated | Freestanding |
| Size | 59 Inch | 59 Inch |
| Dimensions | 59 × 31.5 × 22.9 inches | 58.9 × 29.1 × 22.8 inches |
| Weight | 88 pounds | 77.2 pounds |
| Color | Black/Matte Black | Ribbed White |
| Model | B1818 Black -MB-Drain &O | AMZFT650-59_FBM |
Frequently asked questions
Which material retains heat better, acrylic or stone resin?
Acrylic generally retains heat better than stone resin. The WOODBRIDGE tub uses a double-walled acrylic design to help keep water warm longer. Stone resin tubs like the ANZZI model are thicker but conduct heat away faster. You will notice the acrylic surface staying warmer to the touch during a soak.
How much do these 59-inch tubs weigh?
Weight varies by construction. The WOODBRIDGE acrylic tub weighs 88 pounds. The ANZZI stone resin tub weighs 77.2 pounds. The acrylic model is heavier despite being thinner. This difference matters for floor support. You must check your bathroom floor can handle the specific weight of your chosen material.
What are the width differences between acrylic and stone resin tubs?
Acrylic tubs often have a wider footprint. The WOODBRIDGE acrylic model is 31.5 inches wide. The ANZZI stone resin tub is narrower at 29.1 inches. Both share a similar 59-inch length. The narrower stone resin design saves floor space. You should measure your available width before buying.
Are both materials durable for daily use?
Both materials offer strong durability. The WOODBRIDGE acrylic is reinforced with resin and fiberglass. This creates a tough shell resistant to cracking. The ANZZI stone resin combines acrylic with mineral fillers. This mix provides a solid, rigid structure. Both finishes withstand regular use without chipping easily.
Which tub is better for small bathrooms?
The stone resin option fits tighter spaces. The ANZZI tub is only 29.1 inches wide. The WOODBRIDGE acrylic tub requires 31.5 inches of width. Both are 59 inches long. If your bathroom is narrow, the stone resin model leaves more room. Check your layout against these specific width specs.
Does the finish affect how the tub feels?
Finish changes the tactile experience. The WOODBRIDGE has a matte black acrylic surface. It feels smooth but non-reflective. The ANZZI features a ribbed white stone resin exterior. The texture adds grip and visual interest. Your preference for matte versus textured surfaces will guide your choice between these two materials.