Natural Stone Bathroom Production for Custom Projects
GLMStone produces custom stone bathtubs, sinks and vanities for designers, contractors, bathroom brands and hospitality projects. Our factory and stone stock support material selection across marble, travertine, limestone and onyx. 5-axis CNC handles curved profiles, deep bowls and drain openings, while experienced workers complete polishing, edge finishing and final adjustment.
Before shipment, we check natural stone for visible fissures with infrared inspection, carry out 1:1 dry fitting for multi-part pieces, and finish drain or faucet openings in the factory. Surface treatment is adjusted to the actual stone condition, while critical dimensions can be controlled within ±0.5 mm. 5-axis CNC also allows curved edges, thickened profiles and other complex details to be completed before final hand finishing.
Marble Bathtubs for Custom Bathroom Projects
-
Carved from one marble block with fewer joints and a substantial freestanding form.
-
Natural pink tones and varied veining suit statement bathrooms and boutique hospitality projects.
-
Oval and softly curved designs for villas, hotel suites and large residential bathrooms.
-
Selected white marble blocks give bathrooms a cleaner appearance with natural vein variation.
-
5-axis CNC and hand finishing allow deeper bowls, curved rims and non-standard sculptural profiles.
-
White-grey Carrara veining works well with clean, light and contemporary bathroom interiors.
Natural Stone Sinks & Vanities for Bathroom Projects
GLMStone can supply marble, travertine, limestone and other natural stones for your project, with sinks and vanities customized in different sizes, shapes, surface finishes and edge profiles based on your design requirements.
Marble Bathroom Sinks
-
Wall-fixed basin with concealed or exposed support. Size, drain position and rear fixing details are confirmed before fabrication.
-
Floor-standing basin with pedestal height, bowl depth and drain route adjusted to your bathroom layout.
-
Suspended design keeps the floor clear. Width, wall support, drain outlet and underside clearance are checked from your drawing.
-
Vanity top and basin are coordinated together, with faucet holes, backsplash and edge profile finished before shipment.
-
Round, oval or rectangular countertop bowls can be made with custom depth, rim thickness and drain size.
Travertine Bathroom Sinks
-
Countertop bowl with custom diameter, depth and rim thickness. Drain opening and finish can be matched to your vanity drawing.
-
Floor-standing basin with pedestal height, bowl depth and drain route set around your plumbing and finished floor level.
-
Wall-mounted basin with width, fixing points, drain outlet and underside clearance confirmed from the project drawing before fabrication.
-
Basin and vanity top are developed together, with bowl size, faucet holes, backsplash and edge details coordinated before cutting.
-
Twin basins can be matched in stone tone and spacing, with drain centers and faucet positions fixed before production.
-
Compact bowl for powder rooms and narrow vanities, with outside size, depth and drain position adjusted to limited countertop space.
Limestone Bathroom Sinks
-
Sink and vanity top can be cut as one coordinated piece, with bowl size, faucet holes, backsplash and edge profile set from your cabinet drawing.
-
Width, wall fixing points, drain outlet and underside clearance are checked before cutting. Extra support can be planned for heavier or longer basins.
-
Bowl depth, drain position and countertop opening are confirmed first. The interior finish and sealing treatment are selected for regular water, oil and food-contact use.
-
Round, oval or rectangular bowls can be made with custom diameter, depth and rim thickness, then matched to your countertop and drain specification.
-
Outside size, bowl depth and drain center can be adjusted to your vanity layout. Honed or other low-gloss finishes are commonly used for a softer natural-stone surface.
Custom Marble Vanities
-
Dark marble top with custom length, sink cutout, faucet holes and edge profile matched to your cabinet drawing.
-
Two basin positions are set from the vanity width, with drain centers, faucet spacing and backsplash confirmed before cutting.
-
Marble top is fabricated to the finished cabinet size, including sink opening, faucet holes, overhang and exposed edge details.
-
Light marble can be selected by tone and veining, then cut to your vanity size with required openings and edge finish.
-
Basin and vanity top are coordinated from one drawing, with bowl depth, drain position and cabinet clearance checked before production.
-
Carrara slabs are reviewed for vein movement before cutting, with sink opening, backsplash and edge profile made to your dimensions.
Natural Onyx Bathtubs for Custom & Backlit Bathrooms
Carved from one block, with tub size, bowl depth, rim profile and drain position set from your drawing.
Pink and amber bands are reviewed on the actual block, with translucency checked before cutting for backlit designs.
Green vein movement and lighter crystal areas are selected first, then matched to the tub layout before CNC carving.
Light-toned blocks are checked for color range and transmitted light, with wall thickness adjusted around the approved design.
Dark onyx varies more in light transmission, so the actual block is checked before any backlighting detail is fixed.
Blue-grey bands and crystal movement are reviewed before machining, with vein layout and lighting effect confirmed from the actual stone.
Key Controls for Custom Natural Stone Bathroom Products
Our 10,000+㎡ natural stone warehouse gives your project more options in marble, travertine, limestone and onyx. Slab or block color, vein direction, visible fissures and usable size are checked before cutting. Approved drawings then guide 5-axis CNC machining for bowls, curved edges and openings, with critical dimensions controlled within ±0.5 mm where tighter tolerance is required.
Drain and faucet openings are completed in the factory where possible, reducing site drilling on finished stone. Bathtubs and fabricated sinks can undergo a 24–48H water-holding test according to product structure. Multi-part pieces are dry-fitted before packing, while vulnerable edges and corners are protected with shape-fitted foam and reinforced wooden or metal export crates.
Yes, but we would not choose the stone by color alone. Marble is common for tubs, sinks and vanity tops. Travertine and limestone need more attention to open pores and filling, while onyx may have natural fissures and different light transmission. For a wet-use product, we normally look at the actual stone condition, bowl area, drain detail and finish before cutting.
Marble is usually the most versatile starting point for this type of project because you have more choices in color, block size and finish. Travertine gives you a warmer, more textured surface. Limestone is quieter in pattern. Onyx is different—it is mainly chosen when translucency or backlighting is part of the design. Your drawing and maintenance expectation matter more than simply choosing the most expensive stone.
We check the surface condition first and then apply the suitable penetrating sealer where required. Travertine and limestone normally need more attention because of their pore structure. A sealer can reduce water and stain absorption, but it does not make marble, onyx or limestone acid-proof. Vinegar, acidic scale removers and strong bathroom chemicals can still etch the surface.
Send us your drawing first. Drain center and faucet holes are marked on the shop drawing. We also check the bowl depth and finished outside size against your cabinet or installation space.
For a freestanding tub, overflow position, wall thickness and base contact area need another check. Finished weight is confirmed separately. Critical dimensions can be controlled to ±0.5 mm where the project requires it. Drain or faucet holes are normally machined in the factory.
Warm water and a pH-neutral stone cleaner are enough for most daily cleaning. Use a soft cloth or non-abrasive sponge.
Do not use vinegar, lemon cleaner or strong acidic descaler, especially on polished marble and onyx. Soap residue or bath oil around the drain and vanity joint should be rinsed off early.
Yes. Marble, limestone, travertine and many types of onyx can still be etched by acidic cleaners, even after sealing. Travertine and limestone also absorb more easily if pores or filling areas are left open. We normally select the surface treatment after fabrication rather than applying the same sealer to every stone. Soap, bath oil and colored cosmetics should be cleaned before they stay on the surface for long periods.