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Custom Bathtubs | Made-to-Order Solid Surface Bath Designs

Custom-Bathtub

Custom Bathtubs Made to Fit Your Bathroom Design and Dimensions

KKR Stone manufactures custom solid surface bathtubs for residential and commercial projects. Choose a freestanding or built-in design, then request modifications to its dimensions, shape, color, or finish, subject to manufacturing feasibility. Browse existing bathtub models or send your measurements and drawings for technical review and a made-to-order quotation.

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Featured Custom Bathtub

  • Custom Square Bathtub
  • Custom Oval Bathtub
  • Custom Mini Bathtub
  • Custom Round Bathtub
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Explore Custom Solid Surface Bathtub Designs

Choose a starting design based on the available bathroom space, installation type, bathing requirements, and preferred shape.

KKR Stone offers bathtub designs for freestanding installations, built-in bathrooms, and custom projects requiring specific dimensions or configurations.

Existing models provide a reference for your enquiry. The ability to modify an individual model must be confirmed before quotation.

Compare KKR Stone Bathtub Models

Bathtub model

KKR-B024

Design type

Built-in bathtub

Listed exterior dimensions (L × W × H)

1730 × 895 × 515 mm

Buying consideration

Check recess dimensions, surrounding construction, and plumbing access

Bathtub model

KKR-B107

Design type

Built-in bathtub

Listed exterior dimensions (L × W × H)

1920 × 870 × 570 mm

Buying consideration

Evaluate the longer footprint, support, and installation layout

Bathtub model

KKR-B053

Design type

Freestanding bathtub

Listed exterior dimensions (L × W × H)

1800 × 840 × 570 mm

Buying consideration

Confirm floor space, access clearances, and waste connection

Bathtub model

ETB-B075

Design type

Freestanding bathtub

Listed exterior dimensions (L × W × H)

Request current specifications

Buying consideration

Check available dimensions, material, and finish

Dimensions are published model measurements, not approved custom-size ranges. Request current drawings to confirm interior dimensions, water capacity, dry weight, drain location, and other installation details.

KKR-B024 Built-In Bathtub

KKR-B024 is listed as a built-in bathtub measuring 1730 × 895 × 515 mm.

This model provides a starting point for bathrooms where the bathtub is incorporated into a surrounding structure.

Before specifying it, confirm the finished opening, support requirements, waste position, maintenance access, and whether the proposed dimensions can be modified.

KKR-B107 Built-In Bathtub

KKR-B107 measures 1920 × 870 × 570 mm according to its published model information.

Its longer external dimensions may suit projects with additional installation space.

Evaluate the internal bathing dimensions, soaking depth, floor requirements, and plumbing connections before choosing it as a base for customization.

KKR-B053 Freestanding Bathtub

KKR-B053 is listed as a freestanding bathtub measuring 1800 × 840 × 570 mm.

A freestanding design requires adequate clearance for placement, cleaning, installation, and access to the waste connection.

Confirm the bathtub's delivery route and final position before requesting dimensional modifications.

ETB-B075 Freestanding Bathtub

ETB-B075 provides another freestanding design to evaluate.

Request its current dimensions, internal soaking space, finish options, and technical drawing to compare it with other models.

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Which Custom Bathtub Shape and Installation Type Should You Choose?

A custom bathtub's shape affects the bathing area, installation footprint, surrounding clearances, and potential manufacturing requirements.

KKR Stone accepts enquiries for oval, round, rectangular, compact, and other project-specific designs, subject to technical feasibility.

Bathtub type

Main characteristic

What to verify

Freestanding

Sits as an individual fixture

Floor space, access, drain connection, cleaning clearance

Built-in

Integrates with a surround or prepared structure

Opening dimensions, support, service access, waterproofing

Oval

Uses curved external geometry

Overall footprint, interior length, backrest

Round

Uses a circular or near-circular bathing area

Diameter, entry access, capacity, floor loading

Rectangular

Uses defined straight-sided geometry

Length, width, corners, surrounding construction

Compact

Targets a restricted footprint

Usable soaking depth, entry space, plumbing clearance

Freestanding vs. Built-In Custom Bathtubs

A freestanding bathtub provides an independent fixture with visible exterior surfaces. A built-in bathtub becomes part of a surrounding bathroom installation.

Freestanding models require sufficient access around and beneath the fixture where applicable. Built-in models require accurate opening dimensions, structural support, waterproofing, and plumbing access.

Choose the installation type before approving the manufacturing drawing.

Colors

What Dimensions Matter When Ordering a Custom Bathtub?

Custom bathtub dimensions must describe both the finished exterior and the usable bathing interior.

External length, width, and height determine placement. Internal length, backrest angle, water depth, and capacity affect the bathing experience.

What Should a Custom Bathtub Technical Drawing Include?

Specification

Purpose

Exterior length, width, and height

Confirm installation footprint

Interior bathing length and width

Assess usable space

Interior depth

Evaluate bathing geometry

Soaking depth

Establish usable water depth to a defined waterline

Drain center

Check plumbing rough-in

Overflow position

Determine the waterline and compatible waste assembly

Dry weight

Plan handling and structural support

Water capacity

Establish operating load and bathing volume

Base and support details

Verify installation requirements

Manufacturing tolerances

Define acceptable finished dimensions

Request a model-specific drawing with identified measurements and the applicable revision before placing an order.

What Materials Are Available for Custom Bathtubs?

KKR Stone's custom bathtub offering focuses on solid surface products made using acrylic-resin and mineral-based materials, subject to the selected model's specification.

Solid surface bathtubs differ from conventional thermoformed acrylic-shell and poured-concrete construction.

Custom Solid Surface Bathtubs

Solid surface bathtubs use a manufactured composite material that can support molded designs and selected custom fabrication processes.

The available surface colors, finish options, repair procedures, and manufacturing limits depend on the material grade.

Request the actual composition and finish specification for your chosen bathtub.

Can KKR Stone Manufacture a Bathtub From Your Drawing?

Yes. KKR Stone accepts custom bathtub design enquiries and describes manufacturing capabilities that include mold development.

Provide your drawing, dimensions, installation type, preferred material, finish, and quantity for feasibility review.

An original design may require additional engineering and a new mold.

Modifying an Existing Bathtub vs. Creating a New Mold

Order approach

What it involves

What buyers should confirm

Existing model

Select a catalog bathtub

Current specifications, availability, MOQ

Modified model

Request changes to an existing design

Feasible changes, engineering requirements, cost

New custom mold

Manufacture a different geometry

Tooling charges, approval process, ownership terms

Prototype or sample

Evaluate a proposed product or finish

Sample cost, approval criteria, production suitability

OEM production

Manufacture to an approved commercial specification

Quantities, branding, inspection, repeat-order requirements

Changing the length of an existing design may require more work than adjusting a finish. The manufacturing team must confirm the actual production method.

Custom Bathtubs for Homes, Hotels, and Commercial Projects

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KKR Stone accepts bathtub enquiries for residential renovations, architect-designed bathrooms, hospitality projects, and commercial sourcing.

Each application requires different information about dimensions, installation, finish, quantity, and delivery.

Residential Custom Bathtubs

Residential buyers often need a bathtub that fits an existing room or supports a specific bathing preference.

Provide the available space, preferred shape, intended soaking depth, and plumbing information.

For renovations, verify the floor structure and access route before approving production.

Hotel and Resort Custom Bathtubs

Hotel and resort projects may require repeated dimensions, coordinated finishes, and dependable installation specifications across multiple bathrooms.

Provide the number of units, intended room types, approved drawings, finish references, and target delivery schedule.

Request confirmation of sample approval, inspection requirements, manufacturing capacity, and batch consistency before procurement.

OEM and Wholesale Custom Bathtubs

OEM customers and distributors can submit production drawings, model requirements, branding specifications, and order volumes.

KKR Stone can assess manufacturing feasibility and quotation requirements for the proposed designs.

New tooling, prototype development, product labeling, and repeat production should be addressed in the commercial agreement.

How Does KKR Stone Verify Custom Bathtub Manufacturing Quality?

Custom bathtub quality depends on producing the approved geometry, material finish, and installation details consistently.

KKR Stone's manufacturing process should be evaluated using actual factory evidence and product-specific inspection documents.

How Much Does a Custom Bathtub Cost?

A custom bathtub's price depends on the base model, material, dimensions, design changes, tooling, finish, quantity, and delivery destination.

A quotation should separate the bathtub price from any new mold charge, optional fittings, freight, and other project expenses.

What Affects Custom Bathtub Pricing?

Cost factor

Quotation information

Base model

Existing SKU or original design

Bathtub dimensions

Exterior and interior requirements

Material

Approved solid surface specification

Shape and geometry

Standard design or modified construction

Color and finish

Available option or custom request

Tooling

New mold or engineering requirements

Drain and overflow

Required configuration and supplied components

Quantity

Prototype, single order, or production batch

Packaging and freight

Destination and shipping requirements

Documentation

Drawings, samples, testing, or other agreed requirements

Frequently Asked Questions About Custom Bathtubs

Can KKR Stone Make a Bathtub to Exact Measurements?

KKR Stone can assess made-to-order bathtub dimensions. Manufacturing feasibility depends on the selected design, material, and production requirements. Submit the required length, width, height, installation type, and interior soaking preferences for technical review.

Can You Make a Custom Bathtub Without an Existing Model?

Yes. KKR Stone accepts enquiries for original bathtub designs. A new geometry may require engineering review, mold development, and prototype approval. Submit a drawing or reference image to establish feasibility, tooling requirements, and cost.

Are Custom Freestanding and Built-In Bathtubs Available?

KKR Stone offers freestanding and built-in bathtub designs as starting points for custom enquiries. The permitted changes depend on each model. Confirm the installation configuration, dimensions, drain requirements, and customization options before ordering.

Can You Change the Interior Soaking Depth?

An altered soaking depth may be feasible for a suitable design. The manufacturer must review the bathtub's interior geometry, overflow, water capacity, and structural requirements. Provide your intended water depth and external size limitations.

Can You Order a Small Custom Bathtub?

KKR Stone can assess custom bathtub dimensions for restricted bathroom layouts.

Submit the maximum available length, width, and height alongside your desired interior bathing space.

The manufacturer must review whether the design can maintain suitable wall construction, bathing geometry, drainage, and installation clearances.

Can You Change the Bathtub Drain Position?

A custom drain position may be possible when the bathtub design and manufacturing process support the change.

Provide the plumbing rough-in dimensions and desired drain location before approving the design.

Do not assume an existing bathtub mold allows the drain to be moved without engineering changes or additional tooling.

How Much Weight Must the Floor Support?

Floor loading depends on the bathtub's dry weight, water volume, occupants, and how the load transfers through the base or supporting structure.

Request the actual product weight and capacity.

A qualified structural professional should assess floor suitability where required, particularly for larger custom bathtubs and existing buildings.

Does KKR Stone Manufacture Custom Concrete Bathtubs?

KKR Stone's identified custom bathtub offering is solid surface, not poured architectural concrete.

Buyers looking for a custom concrete bathtub can ask whether an available solid surface finish provides a suitable visual alternative.

A concrete-look finish does not make the product a concrete bathtub.

How Does the Custom Bathtub Manufacturing Process Work?

1. Choose a bathtub design

Select an existing model or send an original concept.

2. Specify your requirements

Provide overall dimensions, desired soaking depth, material, finish, drain position, and intended installation.

3. Review technical feasibility

KKR Stone assesses the design, manufacturing approach, and any mold or tooling requirements.

4. Approve drawings and samples

Review the proposed manufacturing drawing, dimensions, finish reference, components, and commercial terms.

5. Manufacture and inspect

Production follows the agreed design and applicable inspection requirements.

Explore KKR Stone's custom solid surface manufacturing services for made-to-order bathroom products.

What Product Checks Are Important?

Quality verification should address finished dimensions, surface condition, color or finish consistency, drain positioning, and applicable leakage testing.

The inspection criteria must match the bathtub model and approved order requirements.

Request applicable reports and manufacturing tolerances in writing. Do not assume every KKR Stone bathtub has identical performance data or certification coverage.

How Long Does Custom Bathtub Production Take?

Production time depends on technical approval, material availability, tooling, design complexity, and quantity.

The final quotation should distinguish design review, sample or mold approval, manufacturing, and shipping.

Do not treat a general production estimate as a guaranteed delivery date.

What Happens If a Bathtub Arrives Damaged?

The applicable damage procedure depends on the shipping and sales terms.

Before delivery, request instructions for inspecting the packaging and fixture, recording damage, and submitting a claim.

Keep the agreed packing list, shipping documents, and inspection requirements with the order records.

Does KKR Stone Make Custom Concrete Bathtubs?

KKR Stone's identified custom bath material is acrylic-mineral solid surface, not poured concrete. Ask about available solid surface finishes if you want a concrete-like appearance. Confirm the actual material before ordering.

Is a Custom Solid Surface Bathtub the Same as an Acrylic Bathtub?

No. Acrylic-mineral solid surface and conventional thermoformed acrylic shells use different constructions. The selected product's material specification determines its weight, finish, repair method, and manufacturing possibilities.

Do Custom Bathtubs Require a New Mold?

Not every custom request requires a new mold. Finish changes, modifications to an existing design, and original bathtub geometries can involve different production processes. KKR Stone must confirm whether the proposed design needs new tooling.

What Do You Need to Request a Custom Bathtub Quote?

Provide the preferred model or design, dimensions, installation type, material, finish, drain requirements, quantity, destination, and project schedule. Attach a drawing or reference image when available. KKR Stone can then assess feasibility and quotation terms.

How Deep Can a Custom Soaking Bathtub Be?

A deeper soaking bathtub may be feasible for a suitable design, but exterior height does not equal usable soaking depth.

The actual water depth depends on the bathtub's interior geometry and overflow configuration.

Specify the desired soaking depth, waterline, backrest design, and available bathroom dimensions for technical assessment.

Will a Custom Bathtub Fit Through Your Doorway?

A custom bathtub must fit through the entire delivery route, including doorways, hallways, stairs, elevators, and access turns.

Check the fixture's finished dimensions and handling requirements against the available clearances.

Account for protective packaging and lifting equipment when planning delivery.

How Does a Custom Acrylic Bathtub Differ From Solid Surface?

A conventional acrylic-shell bathtub generally uses a formed acrylic sheet with additional reinforcement or backing.

An acrylic-mineral solid surface bathtub uses a different composite construction.

The two products may differ in wall construction, fabrication, weight, surface finishing, and repair methods.

KKR Stone's solid surface product description does not establish that every conventional acrylic-shell construction is available.

Which Bathtub Colors and Finishes Can You Request?

Color and finish availability depend on the chosen material and bathtub design.

KKR Stone can review requests for custom colors, matte or glossy finishes, and other surface details.

Approve a physical sample or documented finish reference when appearance and batch consistency are important.

What Manufacturing Evidence Should Buyers Review?

For a custom bathtub order, request relevant mold-development photographs, production images, technical drawings, and finished-product documentation.

When reviewing a new design, identify the drawing revision and approved sample used for manufacturing.

Commercial buyers can also request genuine project examples where permission for disclosure is available.

Can You Order One Custom Bathtub?

Single-unit availability depends on the selected model and manufacturing arrangement.

An existing bathtub, modified design, prototype, and entirely new mold may have different minimum order quantities.

Confirm the current MOQ for your specific request before budgeting the project.

Are Drain Fittings and Shipping Included?

Component inclusions and delivery costs depend on the quotation.

Confirm whether the bathtub price includes the drain assembly, overflow fittings, mounting accessories, packaging, and freight.

Local installation, plumbing alterations, and structural work should be identified separately unless expressly included in the agreed scope.

What Warranty Applies to Custom Bathtubs?

Warranty coverage depends on the model, material, and written commercial agreement.

Request the applicable warranty period, covered components, exclusions, and claim procedures before approving the order.

Related Solid Surface Bathroom Products

Browse KKR Stone's solid surface bathtub collection if you want to compare standard bathtub designs before requesting customization.

For bathrooms that require coordinated sanitary ware, explore solid surface wash basins and bathroom vanity tops.

You can also review bathroom accessories for complementary storage and bathroom products.

Request a Custom Bathtub Quote

Request a made-to-order bathtub quotation from KKR Stone using an existing model or your own design.

Provide the dimensions, installation conditions, material preferences, and quantity. A drawing helps but isn't required for the initial enquiry.

Quotation field

Information to provide

Name and company

Buyer or organization

Buyer role

Homeowner, architect, contractor, distributor, hotel procurement, or OEM

Email and country

Contact details

Preferred bathtub model

KKR Stone SKU or original design

Bathtub type

Freestanding, built-in, or another proposed configuration

Exterior dimensions

Required length, width, and height

Interior requirements

Desired soaking depth and bathing space

Material and finish

Preferred solid surface specification, color, and texture

Drain and overflow

Intended positions and plumbing details

Quantity

Number of units

Custom tooling

Existing design modification or new design

Delivery destination

Country, state, and city

Project deadline

Requested delivery date

Drawings or references

Optional CAD drawing, sketch, image, or measurement sheet

Certificates

Reviews

Teams

Sales & Project Support Team

Your dedicated point of contact for product consultation, quotations, order coordination, and project updates. We help you simplify procurement and keep your project moving.

Design & Engineering Team

From custom dimensions and colors to complex project requirements, our designers and engineers develop practical solutions that balance aesthetics, functionality, and manufacturability.

Production & Manufacturing Team

Our skilled production specialists bring your specifications to life through established manufacturing processes, supporting consistent quality across customized and bulk orders.

Quality Control Team

Our QC professionals focus on material quality, dimensional accuracy, surface finishes, and final product inspections to help reduce defects and ensure reliable delivery.

Logistics & After-Sales Team

From export arrangements and shipping coordination to warranty claims and technical assistance, our team supports you beyond production and delivery.

Why Make Sink in KKR

Ability and quality speak for themselves.

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    Production Capacity

    3000+ Pcs Per Month

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    MOQ

    As low as 30 Pcs

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    Production Precesion In Length

    +/- 3mm

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    Bespoke Projects

    300+ Per Month

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