Alura and Nerida both offer a low, symmetrical oval granite bath with polished interior and exterior surfaces. Their reference sizes and mineral character are different. Alura's reference is 1730 × 910 × 560 mm; Nerida's is 2000 × 1000 × 600 mm. Comparing the two therefore starts with the room and the actual stone, not with the assumption that every low oval bath occupies the same space.
This comparison uses the two current OIXDESIGN reference specifications. It does not establish a suitable floor load, water capacity or guaranteed bathing comfort. Those questions need the selected configuration's documentation and, where relevant, review by the responsible project professionals.
Cover image: styled product visualization of Alura, not a customer installation photograph.
Alura: a shorter reference with pale granular stone
Alura, model BT-065A, is listed in natural Alpine Silver Gray Granite. Its material description identifies a light-gray background, fine granular pattern and subtle black-and-white mineral points. The reference form is a low symmetrical oval, with a smooth polished interior and exterior.
The overall reference dimensions are 1730 × 910 × 560 mm, approximately 68 1/8 × 35 13/16 × 22 1/16 in, in length × width × height order. The listed reference rim width is approximately 80 mm; the reference base footprint is approximately 1000 × 550 mm. These figures describe different parts of the product and should not be substituted for one another.
Alura is the shorter and narrower of these two listed reference configurations. That makes it the first of the pair to examine when the available plan area is limited. It does not automatically make the bath suitable for a small room: access, circulation, plumbing and the final approved configuration still matter.
Nerida: a longer reference with blue-gray mineral character
Nerida, model BT-003A, is listed in natural Blue-Gray Granite, with muted blue-gray coloration, subtle clouding and restrained mineral movement. It also uses a low symmetrical oval form and polished interior and exterior surfaces.
Its overall reference dimensions are 2000 × 1000 × 600 mm, or 78 3/4 × 39 3/8 × 23 5/8 in. The listed reference interior depth is approximately 510 mm, rim width approximately 90 mm and base footprint approximately 1100 × 600 mm. Interior depth is not a stated water-fill depth or a water-capacity figure.
Nerida's longer reference offers a different proportion to coordinate with the room. Length alone does not establish comfort, a supported number of bathers or the interior usable length. If those factors drive the selection, obtain the relevant interior dimensions and approved drawing rather than inferring them from the outside measurement.
Compare the outside envelope before comparing the scene
Nerida's listed reference is 270 mm longer, 90 mm wider and 40 mm higher than Alura's. These differences are calculated from the current overall reference dimensions; they are not fabrication tolerances or a clearance recommendation.
Place each overall outline on the same room plan, at the same scale. Then consider the approach to the bath, nearby fixtures and the space needed for everyday cleaning. A broad room photograph can make a larger object appear more compact, while a close crop can exaggerate a smaller one. Keep the dimensional comparison independent of the styling.
For a broader room-planning discussion, use the stone bathtub size guide. When access is the limiting factor, check the delivery route before treating either model as selected. The reference base footprint is not the crate size or a complete transport envelope.
Choose mineral character under the project's lighting
Alura's pale granular character and Nerida's deeper blue-gray direction provide different starting points for a material palette. Neither name promises a perfectly uniform colour. Natural stone can vary in background tone, mineral concentration, pattern and markings between blocks.
Compare available stone photographs with the surrounding finishes and under the project's lighting wherever practical. Ask which images describe general design direction and which show material available for the order. A styled visualization may help communicate a composition, but it is not evidence that a particular block has been reserved.
Use the stone appearance approval guide to keep those references distinct. Do not use a screen colour alone as the final material agreement.
Keep unresolved technical facts visible
Both current product descriptions identify the baths as made to order and carved and hollowed from one solid natural granite block. They also leave weight, capacity, overflow details, production lead time and included fittings unverified or subject to confirmation. This comparison does not fill those gaps with estimates.
A centre drain is shown in the reference information, but its final position, diameter and fitting interface require approval for the selected configuration. The project team also needs verified empty and filled operating weights, the appropriate structural review, access and handling arrangements, and coordinated plumbing details. A low profile is not evidence of low weight.
For those responsibilities, refer to the installation planning guide. For receiving and final placement, use the delivery responsibilities guide. Neither guide replaces project-specific professional review.
Turn the comparison into a specific inquiry
Begin with the reference whose overall proportions and stone direction suit the design. Then identify whether you are considering that reference or a change to its dimensions, stone, finish or other details. A custom change can affect feasibility, price and timing; do not assume that a revised bath retains every reference specification.
Browse the granite bathtub collection, or request a quote naming Alura or Nerida, the desired configuration, project location and quantity. Include the available room and access information, plus the questions that remain unresolved. Review the current product-specific purchase and delivery terms before placing an order; a listed reference is not a ready-to-ship promise.
The goal is not to declare one granite bath universally better. It is to choose the right reference for the room, agree the actual material, and resolve the missing technical information before the design becomes a fabrication instruction.
