How to Specify Bathroom Fittings for a Project in India: A Practical Guide for Architects and Builders

How to Specify Bathroom Fittings for a Project

By Corsa Bath | Bathroom fittings manufacturer and supplier since 1996

Quick Answer

To specify bathroom fittings for a project, list every bathroom type in the building, match each fitting to the plumbing and basin layout, confirm size, material, finish and water-connection details from the manufacturer’s datasheet, then record the approved models in a fittings schedule before plumbing work starts.

That is the short version. The rest of this guide shows how to do it properly, what usually goes wrong on Indian sites, and what to ask a manufacturer before you approve anything.

What You Will Find in This Guide

  • What “specifying” bathroom fittings actually means
  • A 9-step process you can follow on any project
  • How to choose faucets, showers, mixers, diverters and accessories
  • Indian site conditions that affect your choices (water pressure, hard water, overhead tanks)
  • A sample fittings schedule
  • Mistakes that cause rework at site
  • A checklist and answers to common questions

What Does It Mean to Specify Bathroom Fittings?

Specifying means deciding, in writing, exactly which fitting goes where. Not “a chrome basin tap”, but a named model, in a named finish, with the right connection type, in the right quantity, for each bathroom type in the project.

A proper specification does three jobs. It tells the plumber what to install. It tells procurement exactly what to buy and compare. And it gives the owner or facility team a record to use years later when something needs replacing.

If the specification is vague, you get substitutions, arguments over “equivalent” products and last-minute changes after tiling is done. Those are expensive to fix.

The 9-Step Process to Specify Bathroom Fittings

Step 1: Sort the project into bathroom types

Start by listing every kind of bathroom or wash area. Most projects have more than one.

Project typeTypical bathroom types to list
Apartment towerMaster bathroom, common bathroom, servant or utility toilet
Villa or independent houseMaster, guest, children’s, powder room, outdoor wash
HotelStandard room, premium suite, accessible room, public washroom
OfficeStaff washrooms, executive washrooms, pantry
Hospital or institutionPatient room, public toilet, staff area

Each type gets its own fittings list. A premium suite and a staff washroom should not share one blanket specification.

Step 2: Note the plumbing conditions

Before choosing any product, understand what the water supply will actually do. In many Indian buildings, water comes from an overhead tank by gravity, so pressure at the upper floors can be low. Some projects use pressure pumps, and some bathrooms run hot water from a geyser or a central system.

This matters because a rain shower, a concealed mixer or a wall-mounted faucet may behave very differently at low pressure. Ask your plumbing consultant for the expected pressure at each floor and write it next to the bathroom type.

Step 3: Consider the local water

Water quality changes from city to city. Delhi NCR, for instance, is widely known for hard water, which leaves scale on faucets, shower heads and aerators. In coastal cities like Mumbai and Chennai, humidity and salt in the air are a bigger concern for finishes.

You don’t need to over-engineer this. Just ask the manufacturer how a product’s finish and internal parts are meant to be cleaned and maintained in your conditions, and note the answer in the project file.

Step 4: List the product categories each bathroom needs

Work through each bathroom type and tick what applies:

CategoryTypical itemsWhat to confirm
Faucets and tapsPillar taps, basin mixers, wall-mounted and single-lever faucetsBasin type, mounting, hole count
ShowersOverhead showers, hand showers, shower arms, shower setsOutlet position, pressure, mixer compatibility
MixersBasin mixers, bath mixers, concealed mixersHot and cold connections, concealed body depth
DivertersConcealed and exposed divertersNumber of outlets, rough-in details
Health faucetsHealth faucet with hose and holderWall position, connection point
AccessoriesTowel rails, rings, hooks, soap dishes, paper holders, shelvesPlacement, wall fixing, finish
Kitchen fittingsKitchen faucets, sinksCounter cut-out, tap hole, sink size
DrainageFloor drains, tile drainersDrain size, floor slope, tile pattern

Not every bathroom needs everything on this table. The point is to decide deliberately rather than at the end.

Step 5: Match each fitting to the drawings

Open the architectural and plumbing drawings side by side and check:

  • Where each water point is, and at what height
  • Whether the fitting is exposed or concealed
  • Basin type and number of tap holes
  • Wall thickness where concealed bodies will sit
  • Tile layout around the fitting

This is where most mismatches are caught. A wall-mounted basin faucet needs its outlet point planned before the wall is closed. A concealed diverter needs the correct body depth for the finished wall thickness.

Step 6: Choose material and finish

Finish is a design decision, but it is also a maintenance decision. Chrome, gold, rose gold and matte black are all used in Indian bathrooms, and the right pick depends on the tiles, sanitaryware, mirrors and lighting around it.

Two cautions. First, don’t assume every finish is available for every product. Confirm availability with the manufacturer before you freeze the schedule. Second, don’t claim durability or corrosion resistance from a catalogue photo. Ask for the manufacturer’s written material and finish information.

Step 7: Collect technical documents

For each shortlisted product, request:

  • Latest catalogue and product datasheet
  • Dimension drawings
  • Installation instructions
  • Warranty terms and exclusions
  • Cleaning and maintenance guidance
  • Information on applicable Indian standards and test documentation, where relevant to the product

If any detail is missing, ask. Never fill the gap with an assumption, especially on bulk orders.

Step 8: Get samples and approvals

For larger projects, ask for sample pieces and look at them in person: weight, finish, handle movement, how the product feels. Share the samples with the architect, interior designer and client where approvals are needed, and record who approved what and when.

Step 9: Write the fittings schedule

Put everything into one schedule that architects, contractors, procurement and the supplier all work from. A sample format is further down in this guide.

How to Choose Each Type of Fitting

Bathroom faucets and taps

Start from the basin, not the faucet. Check how many tap holes the basin has, whether it is counter-top, wall-hung or pedestal, and where the water points sit.

  • Pillar taps: Separate hot and cold taps for basins with matching holes. Simple and familiar.
  • Basin mixers: Combine hot and cold control in one fitting. Confirm the basin configuration and connections first.
  • Wall-mounted faucets: Clean look and more space around the basin, but the outlet point must be planned before tiling.
  • Single-lever faucets: One lever controls flow and temperature. Good where ease of use matters, such as guest rooms and accessible bathrooms.

Showers and shower systems

Check the available space, ceiling height, water supply and mixer arrangement. Common options are overhead showers, hand showers, shower arms and shower sets.

In low-pressure buildings, ask how a given shower performs and whether a booster pump is planned. For concealed shower installations, review the rough-in arrangement before the wall is closed or tiled.

If the project has several bathroom types, write a separate shower specification for each rather than assuming one model fits all.

Mixers and diverters

A mixer blends hot and cold water. A diverter sends water to different outlets, for example between an overhead shower and a hand shower. Both belong in the plumbing stage, not the finishing stage.

Before you approve them, confirm:

  • Number and location of outlets
  • Concealed or exposed installation
  • Body depth and finished wall thickness
  • Compatibility between the mixer, diverter and shower
  • Access for future servicing

Bathroom accessories

Accessories are small, but people notice them every day. Think about how someone moves through the bathroom. The towel rail should be reachable from the shower. The soap dish should sit where hands naturally go. Robe hooks should be on the back of the door or a nearby wall.

Common accessories include towel rails, towel rings, robe hooks, soap dishes and dispensers, paper holders, glass shelves and tumbler holders. In hotels and developments, keep one style and finish across all bathrooms. Write an accessory schedule with product, model, finish, quantity and exact location.

Health faucets, kitchen faucets and drainage

Health faucets are standard in most Indian bathrooms, so mark their wall position and water connection on the drawing. If the project includes kitchens, specify faucets and sinks together so the tap hole, counter cut-out and sink size match. For floors, confirm drain size, floor slope and how the drain sits within the tile pattern.

Indian Site Conditions That Affect Specification

ConditionWhy it mattersWhat to do
Overhead tank supply, low pressureSome showers and concealed mixers need adequate pressure to work wellConfirm expected pressure per floor and ask the manufacturer about requirements
Hard water (common in Delhi NCR and parts of Rajasthan, Gujarat and Punjab)Scale can collect on outlets, aerators and shower facesNote cleaning guidance and plan periodic maintenance
Coastal humidity (Mumbai, Chennai, Kochi, Visakhapatnam)Can be tougher on finishes over timeAsk for finish and care information in writing
Geyser or central hot waterAffects mixer choice and connection detailsShare the hot water arrangement with the supplier
Mixed contractor quality on sitePoor installation causes leaks and returns that look like product faultsShare installation instructions with the site team before work begins
Bulk procurement across towers or phasesDifferent batches can cause finish or model mismatchFreeze the schedule and approvals before ordering

These are general conditions, not guarantees about any single product. For project-specific questions, take it up with the manufacturer’s technical team.

Budget: How to Compare Without Only Looking at Price

Every project has a budget, and bathroom fittings should be planned inside it. But the lowest unit price is not always the lowest project cost.

Project typePlanning approach
Standard residential bathroomsPractical products that meet the approved specification
Premium residentialPay attention to design, finish and range consistency
Hotel guest bathroomsBalance appearance, usability and maintenance
Commercial washroomsPrioritise application, installation and upkeep
Luxury suitesCoordinate premium finishes with the overall design

When you ask for quotations, compare them line by line against your fittings schedule. Check that model, finish, quantity, warranty, delivery and payment terms are all included, so you are comparing the same thing.

Think About Maintenance Before You Approve

Bathrooms get used every day, and in hotels, offices and apartment complexes they get used by many people. Before approval, ask:

  • Are cleaning instructions available?
  • Can spare parts or service information be obtained?
  • Can the maintenance team reach the fitting easily?
  • What does the manufacturer state about warranty and after-sales support?

Keep model numbers, supplier contacts and warranty documents together in one folder. After handover, facility managers will thank you for it.

Sample Bathroom Fittings Schedule

Here’s a simple format you can copy. The rows are an example of layout only, not a recommendation of particular Corsa Bath models.

ItemModel / referenceFinishQuantityLocationNotes
Basin mixerApproved modelChromePer drawingsGuest bathroomCheck tap hole count
Overhead showerApproved modelChromePer drawingsGuest bathroomConfirm pressure
Hand showerApproved modelChromePer drawingsGuest bathroomHose length to confirm
Concealed diverterApproved modelAs per designPer drawingsShower areaConfirm body depth
Health faucetApproved modelChromePer drawingsWC areaMark wall point
Towel railApproved modelChromePer drawingsGuest bathroomFix location on drawing
Robe hookApproved modelChromePer drawingsGuest bathroomDoor or wall mount

For a real project, also add manufacturer name, datasheet reference, approval status and special installation notes. That one page can save days of back-and-forth.

Mistakes That Cause Rework on Site

  1. Choosing by catalogue photo. Always check the basin, plumbing and intended use first.
  2. Finalising after plumbing is done. Concealed and wall-mounted fittings need decisions before walls are closed.
  3. Skipping dimension checks. Compare product dimensions with the drawings.
  4. Mixing finishes without a plan. Different finishes can work together if it’s deliberate. Otherwise bathrooms end up inconsistent.
  5. Ignoring maintenance. Plan for years of use, not just handover day.
  6. Having no written schedule. Without it, procurement and site teams guess.
  7. Not confirming availability and lead time. Do this early, especially on large orders.

Why Corsa Bath for Project Bathroom Fittings?

Corsa Bath is an Indian bathroom fittings manufacturer and supplier, established in 1996. The company offers bathroom and kitchen fittings across several categories, which helps project teams who prefer to source faucets, showers and accessories from a single supplier.

The Corsa Bath range includes:

  • Bathroom faucets and taps
  • Showers and shower systems
  • Bathroom accessories
  • Basin mixers and other mixers
  • Diverters
  • Kitchen faucets
  • Kitchen sinks
  • Sanitaryware
  • Drainage and allied bathroom products

For architects, interior designers and builders, a single range across several categories makes it easier to keep finishes consistent across bathrooms and kitchens. You can browse the Corsa Bath product categories while preparing your schedule.

When you contact the company about a project, it helps to share the project location, building type, approximate number of bathrooms and the product categories you need. The team can then discuss product information, availability and commercial terms with you.

Fittings Specification Checklist

  • Identify project type and scale
  • List every bathroom type
  • Note water pressure, hot water arrangement and local water conditions
  • List required product categories for each bathroom type
  • Review architectural and plumbing drawings
  • Select faucets, mixers and basin fittings
  • Finalise shower and diverter arrangements
  • Select accessories and mark positions
  • Confirm materials and available finishes
  • Check dimensions and mounting details
  • Request datasheets, installation instructions and warranty terms
  • Get samples and written approvals
  • Prepare the fittings schedule
  • Confirm pricing, availability and delivery
  • Keep approved references for procurement and handover

Frequently Asked Questions

How do you specify bathroom fittings for a project? Identify each bathroom type, check plumbing and basin details, choose suitable models and finishes, verify technical data with the manufacturer, and record everything in an approved fittings schedule before plumbing work begins.

What bathroom fittings does a residential project need? Most need basin faucets or mixers, showers, diverters, health faucets and accessories such as towel rails, hooks and soap holders. The exact list depends on each bathroom’s design and plumbing.

What should an architect check before approving a bathroom faucet? Check dimensions, mounting type, tap hole requirement, finish, material information, water connections, installation instructions and warranty terms, and compare them with the drawings.

When should bathroom fittings be finalised? During design and plumbing planning, before walls are closed or tiled. Concealed and wall-mounted fittings need the earliest decisions.

Which finish is best for bathroom fittings? There is no single best finish. Chrome, gold, rose gold and matte black are all used. Pick based on the interior theme and care requirements, and confirm availability with the manufacturer.

How do I choose bathroom fittings for a hotel? Prepare separate schedules for standard rooms, suites and public washrooms. Weigh appearance, usability, maintenance and availability for repeat orders.

Does water pressure matter when choosing a shower? Yes. In buildings fed from overhead tanks, pressure can be low on upper floors. Ask the manufacturer about product requirements and discuss pumps with your plumbing consultant.

Why is a fittings schedule important? It records approved models, finishes, quantities and locations so architects, contractors, procurement and suppliers all work from the same information.

What documents should I request from a manufacturer? A current catalogue, datasheets, dimension drawings, installation instructions, warranty terms, maintenance guidance and information on applicable standards.

Can Corsa Bath supply fittings for residential and commercial projects? Corsa Bath offers bathroom and kitchen fitting categories that project teams can explore. Contact the company to discuss your requirements, availability and commercial terms.

Where can I see Corsa Bath products? Visit corsabath.in/category.php to browse the available categories.

How do I send a project enquiry to Corsa Bath? Use corsabath.in/contact.php and share the project location, development type, approximate number of bathrooms and product categories required.

Final Thoughts

Good bathroom specification is mostly about starting early and writing things down. Understand each bathroom type, check the plumbing and local water conditions, confirm technical details with the manufacturer, and keep one approved schedule that everyone uses. Do that, and most of the usual site problems never show up.

Corsa Bath, an Indian bathroom fittings manufacturer and supplier established in 1996, offers a range of bathroom and kitchen fittings for project teams to explore. If you are planning a residential development, hotel, commercial building or interior project, get in touch to discuss your requirements.

  • Explore Corsa Bath: https://www.corsabath.in/
  • View product categories: https://www.corsabath.in/category.php
  • Project enquiries: https://www.corsabath.in/contact.php

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