Alcove Bathtubs for Multifamily & Apartment Builds: Bulk Sourcing Guide

What apartment developers actually need from a bathtub manufacturer

If you are sourcing tubs for a 100-, 200-, or 600-unit apartment build, the decision is not "which bathtub brand is best." It is a procurement problem: can the factory deliver the same code-compliant, durable, dimensionally exact tub — on schedule, palletized for ocean freight, and at a per-unit price that survives a project pro forma — across every stack in the building? Page-one roundups answer the homeowner's question ("best soaking tub"); the distributor segment pages name-drop ADA but hide lead times, MOQ, and pricing. This guide closes that gap with the specifics a real project buyer schedules trades against.

At SANIKB we supply alcove tubs factory-direct, so when a developer, GC, or property manager commits a purchase order, they are buying from the plant that pours the acrylic — not a brand group adding a middleman markup. The four things multifamily procurement actually weighs are: durability through tenant turnover, code and accessibility compliance, fast finish-out install, and on-time delivery at volume. Every section below maps to one of those. If you want to skip ahead and price a project, our acrylic alcove bathtubs for multifamily projects collection is the funnel to start a quote.

Best bathtub types for apartments and multifamily units

Not every tub format belongs in a rental unit. Here is where each fits in a multifamily floor plan:

• Alcove / built-in tub (the multifamily default): three walls, one finished apron, recessed into a stud bay. This is the great majority of apartment bathrooms because it is the most space-efficient, the cheapest to install, and the easiest to convert to a tub-shower combo. All three SANIKB series in this guide are alcove tubs.
• Tub-shower combo (unit bath): an alcove tub paired with a wall surround and a showerhead — the standard "wet wall" configuration for apartments. Pair our tubs with a matching shower and bath combination unit wall set, and gate the opening with sliding framed and frameless shower doors from our manufacturer line for higher-spec units.
• Drop-in tub: deck-mounted, no finished apron — used when the design calls for a tiled surround. More labor on the jobsite, so reserve it for market-rate or upper-tier units.
• ADA / accessible tub: required at the mandated ratio of accessible units (see compliance below). Drain-hand and grab-bar backing must be coordinated to the unit's mirror-image plan.
• Freestanding / soaking: amenity-grade only — penthouse, model unit, or hospitality crossover. Not a workhorse rental format because of weight, leveling, and cleaning labor.

Bathtub material comparison for multifamily

The material decision should be weighted for a building you do not live in: it has to survive turnover, clean fast between tenants, and not overload the structure on a high-rise. Here is how the common options stack up for project use.

For the overwhelming majority of apartment programs, reinforced white acrylic wins the trade-off: it gives you the cleanable, non-porous surface and the impact resistance you need for turnover, at a weight and install-labor profile that keeps your schedule and your structural loading in check. Our tubs are produced to the ANSI Z124.1 plastic bathtub standard for material performance.

The three SANIKB alcove series — real models, real specs

We keep three 60-inch alcove platforms because almost every standard apartment tub bay is built around a 60-inch run. The choice between them comes down to apron style (flat skirt vs. paneled), nominal width (30 or 32 inches), and drain depth. All three are white acrylic, available left- or right-hand drain, and built for North American and export markets. Exact basin depth and finished apron height are confirmed per model and market on the shop drawing.

Practical read on the table: spec the BTS6032 paneled-apron acrylic bathtub when the design wants a finished, dimensional skirt face; spec the flat-apron BTS6030 or BTA6032 60x32 alcove tub when the apron will be tiled, panelled, or kept clean and minimal. The 30-inch BTS6030 fits tighter bays and unit-bath layouts; the 32-inch BTS6032 and BTA6032 give a roomier basin where the floor plan allows. Exact width, basin depth, and apron height per series are confirmed per model and market on the shop drawing. Drain hand is the spec that trips up first-time apartment buyers — it must be set per riser/stack, because mirror-image units flip the plumbing wall.

Standard apartment bathtub sizes and rough-in dimensions

The reason we anchor on 60-inch tubs: the American apartment tub alcove is overwhelmingly framed for a 60-inch tub between studs, with width typically at 30 or 32 inches. Quick fit notes for spec writers:

• 60 × 30: the tightest standard, ideal for compact unit-bath and affordable/student layouts. Our BTS6030 lands here.
• 60 × 32: the comfort standard for market-rate units. The BTS6032 (paneled apron) and BTA6032 (flat apron) both serve this opening.
• 54 in and under: used in micro-units and some senior layouts — confirm framing before specifying, as it is a non-standard rough-in.
• ADA roll-in / accessible: dimensions and clearances are governed by code, not preference. Coordinate drain location and grab-bar blocking to the accessible-unit plan.

Always confirm the finished apron height and the exact drain-to-wall offset against our shop drawing before framing, because small differences between series change the deck and surround detail. Exact dimensions are confirmed per model and market.

Code and compliance checklist for multifamily tubs

Compliance is where thin competitor pages fall down — they name-drop ADA and stop. For a multifamily project, your spec and submittal need to clear the full stack, and the responsibility splits between the fixture and the installed assembly:

• UPC / IPC plumbing code: the tub and its waste/overflow must be listed to the model plumbing code your jurisdiction adopts. Our tubs carry cUPC listing — the IAPMO Uniform Plumbing Code (cUPC) mark accepted across the US and Canada.
• Accessibility — ADA & ANSI A117.1: the required ratio of accessible units must use compliant tubs with proper clearances, controls, and grab-bar backing. Review the federal ADA standards (ada.gov) with your design team to set the accessible count and detail.
• Fair Housing Act (FHA): covered multifamily dwellings have their own accessibility design requirements distinct from ADA — confirm which units are FHA-covered.
• Slip resistance: textured tub floor for the building's safety spec.
• Low-VOC / indoor air: confirm low-emission requirements per market; available per model and market.
• High-rise fire ratings: assembly fire-rating requirements apply to the wall/surround and penetrations, not the tub alone — coordinate with the GC.

Our certification set is cUPC, CE, SGS, WRAS, ISO 9001:2015, INMETRO, and NOM, which covers North America, Europe, the UK, Brazil, and Mexico. We never claim a certification a model does not hold; the exact marks are confirmed per model and destination market on the submittal sheet, and we will not list ADA or any code conformance on a unit that has not been verified for it.

Buying factory-direct vs. through distributors or brand groups

Page one for this term is dominated by US brand groups and franchise installers. Sourcing from the actual factory changes three things that matter to a developer:

• Price: you pay the plant, not the plant plus a national distributor's margin. On a multi-hundred-unit order that delta is real money in the pro forma.
• Lead time and capacity: you schedule against the production line directly, not against a reseller's regional inventory.
• Customization: the factory can change size, drain location, finish, and branding at source — a distributor reselling stock cannot.

The trade-off is that factory-direct is a quote-based, project relationship — not a retail checkout. That is exactly the model multifamily procurement already runs on.

Lead times, production capacity and MOQ for project-volume orders

This is the single biggest gap on page one, and the number a property manager schedules every other trade around. Our standard:

• Lead time: 30–45 days after sample approval for a production run, confirmed per model and market. The clock starts at sample sign-off, not at the inquiry — which is why we push samples early (see below).
• MOQ: we will ship from 1 unit via freight forwarder, but real economics start at a full 20ft container load — the efficient unit of purchase for a stack or a phase. We will quote per-container so you can phase delivery to your construction schedule.
• Volume orders (50–1,000+ units): quoted by container count with tiered pricing; we stage production and shipment to match a build's pour and finish-out sequence rather than dumping all units at once.

Because lead time is tied to sample approval, the way to protect your construction schedule is to approve the production sample before the rest of your design is final.

Volume pricing, samples, and mockup-unit support before you commit a PO

Standard multifamily procurement validates the fixture before a large PO, and we build for that. We supply pre-order samples and support mockup-unit builds so your GC can dry-fit the actual tub in a model bathroom — confirm drain hand, apron face, and surround detail — before you commit container volume. Tiered, volume-based pricing is quoted against your unit count and container plan. Because we are factory-direct, the sample you approve is the unit that ships.

Fast-install and finish-out logistics

A single-piece acrylic alcove tub is built for speed on the jobsite: it drops into the framed bay, the flange screws to the studs, and the apron is finished — no multi-part assembly. For the logistics that actually determine whether your trades stay on schedule:

• Export packaging: each tub is foam-corner-protected and cartoned, then palletized for ocean freight so units arrive undamaged after weeks in a container.
• Container loading: we load to a 20ft container as the base unit and optimize the count per container; we will confirm the exact piece count per container on your quote.
• Staged / jobsite delivery: we sequence shipments to your phase plan so you are not storing 600 tubs on a site with no room for them.
• Damage-replacement: photo-documented damage in transit is handled on a replacement basis — important when a cracked tub can hold up a unit's CO.

Cost of ownership and tenant-turnover durability

For a building you will hold and operate, the tub's real cost is the turnover cost over years of tenants. Reinforced acrylic earns its place here: the non-porous surface cleans fast between tenants and does not harbor mildew the way a porous or grouted surface does; the gelcoat is chip- and stain-resistant; and minor surface damage is repairable rather than requiring a full tub-out. That is fewer make-ready hours per turn and a longer service life before replacement — the line items that actually move a building's operating budget.

Customization for developers (OEM / ODM & private-label)

As the manufacturer, we customize at source. For project and private-label programs we can adjust:

• Size and apron within our tooling (flat vs. paneled apron, width).
• Drain / overflow location set per stack so mirror-image units are correct out of the carton.
• Finish and color per spec.
• Branding: private-label cartons, logos, and spec'd-to-plan units for a named development (ODM) or your own brand (OEM).

Matching tubs to your segment

Multifamily is not one buyer. Tune the spec to the asset:

• Market-rate: 60 × 32 (BTS6032 paneled or BTA6032 flat) for the roomier basin and finished apron face.
• Affordable / LIHTC & student housing: 60 × 30 (BTS6030) for value and maximum durability through high-churn turnover.
• Senior / assisted living: prioritize slip resistance, the accessible-unit ratio, and grab-bar backing; coordinate ADA/ANSI A117.1 detail tightly.

Spec resources and how to spec our tubs

For your architect and spec writer, we provide dimensioned shop drawings per model, the certification/compliance documentation (cUPC, CE, SGS, WRAS, ISO 9001:2015, INMETRO, NOM as applicable to model and market), and warranty terms — assembled into a submittal-ready package. To write us into the spec, call out the series and drain hand (e.g., "SANIKB BTS6032, 60 × 32 nominal, paneled apron, RH drain, white acrylic, cUPC") and reference our shop drawing for exact dimensions. For broader unit-bath sourcing, see our companion guides on the multifamily bathroom fixtures supplier program and our hotel bathroom fixtures supplier playbook for hospitality crossover projects.

How to request a project quote, samples, and lead-time estimate

Send us your unit count, the floor-plan tub size (60 × 30 or 60 × 32), drain hand per stack, destination port, and target finish-out date. We will return a per-container quote, tiered pricing, a lead-time estimate, and a sample plan. Browse the full factory-direct alcove bathtub range for apartment projects, then request a project quote and bathtub samples to start.

Frequently Asked Questions

What is the MOQ for apartment bathtub orders?

We can ship from a single unit via freight forwarder, but project economics start at a full 20ft container load. For multifamily orders we quote per container so you can phase delivery to your construction schedule; volume orders of 50 to 1,000+ units are priced by container count with tiered pricing.

What is your lead time for a multifamily bathtub order?

Standard production lead time is 30 to 45 days after sample approval, confirmed per model and market. The clock starts at sample sign-off, not at the initial inquiry, so we recommend approving the production sample early to protect your construction schedule. Shipping transit time is additional and depends on destination port.

Which certifications do your alcove bathtubs carry?

Our acrylic alcove tubs carry cUPC, CE, SGS, WRAS, ISO 9001:2015, INMETRO, and NOM, covering North America, Europe, the UK, Brazil, and Mexico. The exact marks are confirmed per model and destination market on the submittal sheet — we do not list a certification a given model has not been verified for.

Can you handle OEM / ODM and private-label for a development?

Yes. As the manufacturer we customize at source: size and apron style within our tooling, drain and overflow location set per stack, finish and color, and private-label cartons or spec'd-to-plan units for a named development. We support both OEM (your brand) and ODM (spec'd to your plan) programs.

How are the tubs packaged and shipped for an overseas project?

Each tub is foam-corner-protected, cartoned, and palletized for ocean freight, then loaded to a 20ft container as the base shipping unit. We optimize the piece count per container, confirm it on your quote, sequence staged delivery to your phase plan, and handle photo-documented transit damage on a replacement basis.

What standard apartment sizes do your bathtubs fit?

All three series are 60-inch alcove tubs to match the standard American apartment tub bay. The BTS6030 is 60 × 30 for tighter unit-bath and affordable layouts; the BTS6032 (paneled apron) and BTA6032 (flat apron) serve the 60 × 32 market-rate opening. Exact dimensions are confirmed per model and market — always confirm drain hand per stack and verify rough-in against our shop drawing before framing.

— Rokan, SANIKB