SoLuna Copper Japanese Soaking Tub | Square

SoLuna Copper Japanese Soaking Tub | Square

Hammered Square Copper Japanese Soaking Tub handcrafted by SoLuna.
  • Traditional Japanese Ofuro style
  • Integrated bench seat for optimal comfort
  • Double-wall construction allows for optional onsite insulation
  • Available in 5 beautiful copper patina finishes
  • Handmade to order, please allow approx. 3-4 weeks for delivery
  • Free shipping to lower 48 states and Canada!
SKU: CT9016L20
Free shipping


Picture of Renaissance Wax for Sink Care
Picture of Howard Wax-It-All
Picture of Sink Pre-Waxing Service

Create your own peaceful sanctuary with our deep Square Copper Japanese Soaking Tub by SoLuna (shown in the Cafe Natural finish). This stunning soaking tub is designed in a traditional Japanese Ofuro style. All of our tubs are made from heavy 14-gauge copper, this allows the perfect duality of indoor or outdoor installation and our double-wall construction helps keep water warm longer. Copper is a naturally anti-microbial metal that develops a beautiful living finish patina over time. Soak away your worries in this beautifully handcrafted free-standing bathtub! This beautiful soaking bathtub has an integrated bench or corner seat inside for optimal comfort and relaxation. Drain placement is centered. No overflow or faucet holes.


Five unique patina finishes: Matte Copper, Cafe Natural, Dark Smoke, Rio Grande, Polished Copper. Matte Copper, Cafe Natural, Dark Smoke, Rio Grande. The bathtub pictured above has Cafe Natural finish.


We also have Copper Lighting Fixtures, MirrorsCopper Light Switch Plates and Copper Back Splash Tiles in all kinds of interesting and unique designs as creative options for you.

For a limited time, if you purchase a tub and tub filler together, you’ll receive 20% of the tub fillers price, see all your options HERE.


We are happy to create a custom order for you. If you're interested in adjusting the dimensions or making other modifications please feel free to call us Monday - Friday, 7 am - 4 pm PST at (360) 321-2131

The drain is centered, but adjustments to drain placement can be made. Please call us to discuss your special request Monday – Friday, 7 am – 4 pm Pacific Time at 360.321.2131.

Outer Dimensions - 45" L x 45" W x 55" H
Inner Base Dimensions - 39" L x 39" W x 50" H
Intergrated Corner Seat Dimensions - 31" L x 10" W x 29 H"

***Optional Bench Seat - 39" L x 15" W x 15" D ~ Add $500

Empty bathtub weighs approximately 200 lbs.
When filled to capacity a bathtub holds approximately 168 gallons, but some of that water will be displaced when you get into the tub.

Available in 5 copper patina finishes:
Matte Copper
Cafe Natural
Dark Smoke
Rio Grande
Polished Copper

*Polished copper tubs are sealed with permalac® protective clear top coat to extend the life and luster of these beautiful copper tubs for an additional $245.00.

14 gauge Hammered Copper
TIG Copper Welded

Due to the handcrafted nature of production, please allow approximately 3-4 weeks for delivery.

Free shipping to lower 48 states! (Other areas please call 360.321.2131 for a quotation)

*Please Note: Due to the handcrafted nature of production, dimensions may vary up to 3/8" (+/-)



Maintenance Tips SoLuna Finishes:

Wiping your SoLuna copper product down with a soft rag and spot checking with soap and water is generally all the cleaning your SoLuna copper product will ever need. We recommend NOT using anything abrasive for bathing or cleaning, including products like bleach, bristle brushes, and harsh soaps.


To keep your copper sink or bathtub in premium condition, we recommend routinely waxing your sink or tub with Renaissance Wax or Howard Wax-It-All.


Please note: Some Copper Products offer the option for the application of a lacquer seal to protect the original patina. Wax is not necessary to maintain the finish of lacquered copper products. However, waxing does provide an extra layer of protection from dirt and grease for both lacquered and unlacquered copper products.

Product reviews

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Existing reviews
Beautiful and well built
Only good things to say about the tub and your company.  Everything went smoothly and appreciated the advice of filling the "gap" between the two walls with foam.  The water stays hot forever!  
Guest | 1/21/2019 12:51 PM
Was this review helpful? Yes No (4/4)
Exactly what we wanted!
This tub is just the right size, the double wall with foam (we had to add that, but not a big deal), height and quality have met all our expectations.
Guest | 1/15/2019 4:18 PM
Was this review helpful? Yes No (0/4)
Very happy with this tub!
This is the best thing we did for our bath remodel!  The double wall feature means you can put insulation in it and the tub is a regular thermos.  The plumber said its the nicest tub he has ever seen or installed.  Love the tub filler too.  Very helpful staff.  
Guest | 12/12/2018 4:44 PM
Was this review helpful? Yes No (3/4)
Perfect for our space!
The tub arrived as promised and crated well.  it fit into our space like a dream and we love the tub filler we purchased from you with the discount.  As advised, filled the double wall with marine foam and it is indeed a "thermos" that holds the hot water temp.  We are so happy we found you and bought this tub!
Guest | 12/2/2018 12:59 PM
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Luxury beyond belief
...there can be no words expressed that will truly capture the beauty and functionality of this tub.  Fill the double walls with foam (as suggested) and the water stays hot forever.  You will want to soak every day!  The versatility of a round tub is something to consider.  Put it in a corner, centered on the wall, in the middle of your space.  The craftsmanship is amazing and if we ever sell our home we want to take it with us!
Guest | 12/7/2017 3:33 PM
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