Quick Takeaways
- Fixtures and systems decisions must be made before construction starts. Rough-in locations, cutout sizes, and electrical circuits cannot be changed cheaply once walls are closed.
- Toilet rough-in dimension is one of the most commonly missed specifications. Measure before you order.
- Thermostatic shower valves cost more than pressure-balancing valves and are worth it for comfort and safety in multi-user households.
- A freestanding bathtub is heavier than most subfloors expect. Structural assessment is required before installation.
- Every major kitchen appliance needs its own dedicated electrical circuit. Sharing circuits causes tripped breakers and code violations.
- Ventilation for range hoods is briefly covered here. For full ventilation system selection, see the Lighting and Ventilation Guide.
Fixtures and systems are the working infrastructure of any kitchen or bathroom renovation. They are the decisions that affect how the space functions every single day, and they are among the decisions most frequently left too late in the planning process. A sink selected after the countertop is templated may not fit. A fridge chosen after cabinet installation may block a door. An electrical panel that was never assessed may not support the new load.
Read this guide before your contractor meeting. The specifications covered here directly affect rough-in locations, cutout sizes, and structural requirements that your contractor needs to know before any work begins.
Jump To a Section
Fixtures and Systems: Kitchen Sinks and Faucets
The kitchen sink is the most-used fixture in the kitchen. It sits at the intersection of countertop, cabinet, and plumbing decisions. Specify it before the countertop is templated. The cutout and mounting method must be coordinated with the countertop fabricator.
Kitchen Sink Types
Kitchen Sink Materials
Kitchen Faucets
Single-handle vs two-handle: Single-handle faucets mix hot and cold with one control, easier to operate when hands are full or wet. Two-handle faucets have separate hot and cold controls, more traditional appearance, require a wider deck plate or three holes in the sink deck.
Pull-down vs pull-out sprayer: Pull-down sprayers extend downward into the basin and are easier to rinse large pots and the sink interior. Pull-out sprayers extend forward and sideways and are more flexible for tasks outside the sink. Both require adequate clearance above the sink.
Filtered water faucets: A dedicated faucet for filtered drinking water at the sink requires an additional hole in the sink deck or countertop and a filter system installed under the sink. Specify the hole location before templating.
Touch and touchless faucets: Activate with a touch on the body of the faucet or without contact at all. Useful for cooking tasks when hands are covered in food. Require a nearby electrical connection or battery power. Confirm the power source before ordering.
Fixtures and Systems: Bathroom Sinks and Faucets
Bathroom sink selection is tied directly to vanity selection. The mounting style must be compatible with the vanity top. Specify both together and confirm compatibility before ordering either.
Bathroom Faucets
Single-hole vs widespread vs centerset: Single-hole faucets require one hole in the sink deck or vanity top. Widespread faucets have separate hot, cold, and spout controls that mount in three separate holes spread across the vanity top, typically 8 inches apart. Centerset faucets have the same three controls but mounted on a single base plate spanning a shorter distance, typically 4 inches between centres. Confirm the hole configuration of your sink or vanity top before ordering a faucet.
Finish coordination: Bathroom faucet finish should coordinate with towel bars, toilet paper holders, shower fixtures, and light fixture finishes in the same room. They do not need to match exactly but should sit within the same metal tone family. Mixing warm and cool metal finishes without intention creates visual tension across a small space. For how finish coordination fits into the broader material planning process, see the Kitchen and Bathroom Materials Overview Guide.
Fixtures and Systems: Toilets
Toilet selection involves more specification decisions than most homeowners anticipate. The rough-in dimension is the most critical and most frequently overlooked. Getting it wrong means the toilet does not fit the existing plumbing without moving the drain stack.
Rough-In Dimension
The rough-in dimension is the distance from the finished wall behind the toilet to the centre of the drain outlet in the floor. Standard is 12 inches in most Canadian homes. Some older homes have 10-inch or 14-inch rough-ins.
Measure the rough-in of your existing toilet before ordering a replacement. Installing a toilet with the wrong rough-in means the unit either does not reach the wall or overlaps into it. This is not adjustable without moving the drain. Confirm the rough-in dimension first. Every time.
Two-Piece vs One-Piece vs Wall-Hung
Two-piece: Tank and bowl are separate pieces bolted together. Most common and most affordable. Wider selection available. Easier to service because tank components are accessible.
One-piece: Tank and bowl are a single moulded unit. Cleaner look, easier to clean around the base. Typically more expensive than comparable two-piece models. Heavier to handle during installation.
Wall-hung: The toilet bowl mounts to the wall with no visible base or floor contact. The tank is concealed inside the wall in a carrier frame. Very clean contemporary aesthetic. Easier to clean the floor beneath. Requires the carrier frame to be installed during the rough framing stage. Cannot be retrofitted into a finished wall without significant reconstruction.
Standard Height vs Comfort Height
Standard toilet seat height is approximately 15 inches from the floor. Comfort height (also called ADA height or chair height) is 17 to 19 inches from the floor, approximately the same height as a standard chair.
Comfort height is easier to sit down on and stand up from, particularly for taller adults and older users. Standard height is often more comfortable for children and shorter adults. Most households choosing comfort height have no regrets. It is worth knowing before you default to whichever is on the showroom floor.
Flushing Systems and Dual Flush
Gravity flush: Uses the weight of water in the tank to flush. The most common residential system. Quiet, reliable, low maintenance.
Pressure-assisted: Uses compressed air inside a sealed inner tank to increase flush power. Noticeably louder. Better for larger households where the toilet gets heavy use. More expensive. Less common in residential applications in Canada.
Dual flush: Two flush buttons or handles offering a reduced-volume flush for liquid waste and a full-volume flush for solid waste. Standard in most modern toilets now. Required under many Ontario municipal water conservation guidelines for new construction.
Bidet seats: Aftermarket bidet toilet seats fit most standard two-piece and one-piece toilets. They require a nearby electrical outlet on a dedicated circuit. Specify the outlet location during rough electrical work.
Fixtures and Systems: Showers
Shower specification involves more decisions than any other single fixture in a bathroom renovation. The valve selection in particular has direct safety implications that are worth understanding before you choose on price alone.
Pre-Fab vs Custom Tiled Shower
Pre-fabricated shower systems are moulded units installed in a single piece or interlocking panels. Lower cost, faster installation, and no waterproofing membrane required because the pan and walls are the waterproof system. Limited size and configuration options. Suitable for budget renovations and standard-size shower openings.
Custom tiled showers are built in place with a tile substrate, waterproofing membrane, and tile finish. Unlimited size and configuration. Requires proper waterproofing system installation behind the tile. For waterproofing system details, see the Underfoot Guide. For tile selection for shower walls and floors, see the Surfaces Guide.
Thermostatic vs Pressure-Balancing Valves
This is the most important shower specification decision and the one most homeowners do not know to ask about.
Pressure-balancing valves maintain a constant ratio of hot to cold water pressure. If someone flushes a toilet or runs a tap elsewhere in the house, the valve compensates to prevent a sudden temperature spike. This is a safety feature required by code in Canada. It prevents scalding. It is the standard in most residential shower installations.
Thermostatic valves maintain a constant water temperature regardless of pressure fluctuations in the supply lines. You set the temperature once and it holds that temperature precisely every time. You can pause the water flow without losing the temperature setting. Allows multiple outlets (rain head, handheld, body sprays) to be controlled independently.
Thermostatic valves cost more — typically two to four times the cost of a pressure-balancing valve for the valve alone. For a household where multiple people share a shower, or where a rain head plus handheld plus body sprays are specified, a thermostatic system is the right specification. For a standard single-head shower, a pressure-balancing valve is adequate.
Shower Heads: Standard, Rain, Handheld, Body Sprays
Standard shower head: Wall-mounted at upper body height. The baseline. Works well and requires no additional water pressure considerations.
Rain head: Large-format overhead head mounted at ceiling level or on an extended arm from the wall. Covers a wider area. Requires adequate water pressure and flow rate. Ceiling-mounted rain heads require the supply line to be run through the ceiling during rough plumbing.
Handheld: Mounted on a slide bar or fixed bracket, detachable for directed rinsing. Useful for bathing children, rinsing the shower enclosure, and users with limited mobility. A practical addition to almost any shower.
Body sprays: Multiple jets mounted in the shower wall at various heights. Requires significantly higher water flow rate and pressure than a standard shower. Also requires a thermostatic valve to manage multiple outlets simultaneously. Confirm your home’s water pressure before specifying body sprays.
Shower Niches and Benches
Niches and benches are structural elements built into the shower during the framing stage. They cannot be added after tile is installed without demolition. Specify their location, size, and height during the design phase, before rough framing begins.
Niches: Recessed shelves cut into the shower wall between studs. Typically 12 inches wide by 24 inches tall, sized to fit between standard 16-inch stud spacing. Location should be on a non-exterior wall where possible to avoid insulation conflicts. Niches require waterproofing on all five surfaces inside the recess.
Benches: Fixed seating inside the shower enclosure. Can be a full-width bench along one wall or a corner bench. Built from cement board and waterproofed as part of the overall shower waterproofing system before tile is applied. Standard bench height is 17 to 19 inches from the shower floor.
Pro Tip
Specify the shower valve before the shower tile is ordered. The valve trim plate and handle size affects how the tile is laid around it. If you order tile first and then choose a valve, you may find the trim plate covers more or less tile than expected, creating an unintended cut pattern around the control. Valve first. Tile second.
Fixtures and Systems: Bathtubs
Bathtub selection affects framing, plumbing rough-in, and in the case of freestanding tubs, the structural capacity of the subfloor. These are decisions that need to be made early in the planning process.
Bathtub Materials
Acrylic: Lightweight, warm to the touch, wide colour and shape range, most affordable. The dominant residential choice. Scratches more easily than cast iron but can often be polished out.
Cast iron: Heavy, exceptionally durable, retains heat well (the water stays warm longer). The premium material for freestanding tubs. Requires structural assessment for upper-floor installation. Very long lifespan.
Steel: Lighter than cast iron, less expensive, less heat retention. The enamel coating can chip. A middle ground between acrylic and cast iron for standard alcove tubs.
Fixtures and Systems: Kitchen Appliance Specification
Kitchen appliance selection affects cabinet cutout sizes, electrical circuit requirements, gas line routing, and ventilation needs. All of these decisions interact with the cabinet layout plan. Finalize appliance selections before cabinet orders are placed. For how appliances connect with the kitchen layout decisions, see the Cabinetry Guide.
Range vs Cooktop and Separate Wall Oven
Range: Cooktop and oven in one freestanding unit. Simpler installation. One connection point for gas or electric. Lower total cost than a separate cooktop and oven. Slides into a standard 30-inch opening. Most residential kitchens in the GTA use this configuration.
Cooktop plus separate wall oven: The cooktop sits in the counter and the oven is mounted in the wall at a more ergonomic height. Better for people who bake frequently because the oven is at eye level rather than knee level. Requires dedicated cutouts in both the countertop and the wall cabinet stack. Two separate electrical or gas connections required. Higher total installation cost.
Induction cooktops: Increasingly common in GTA kitchen renovations. Requires a specific electrical circuit (typically 240V, 40 to 50 amp). No gas line needed. Faster and more precise temperature control than gas or traditional electric. Requires induction-compatible cookware.
Range Hoods: Ducted vs Recirculating and CFM Requirements
Ducted range hoods exhaust air outside through a duct. They are significantly more effective at removing grease, moisture, and cooking odours than recirculating systems. They require a duct run from the hood to an exterior wall or roof penetration. The routing of this duct affects ceiling height and requires planning during the design phase.
Recirculating (ductless) hoods filter air through charcoal filters and recirculate it back into the kitchen. No exterior duct required. Appropriate where ducting is not possible. Significantly less effective at moisture and odour removal than ducted systems. Filters must be replaced regularly.
CFM (cubic feet per minute) is the airflow rating of the hood. A general rule is 100 CFM per 10,000 BTU of cooking power for gas ranges. For electric ranges, 100 CFM per linear foot of cooking surface is a reasonable starting point. Undersized ventilation is a common mistake in kitchen renovations. Oversized ventilation in a tightly sealed home can create negative air pressure issues. For detailed ventilation system guidance, see the Lighting and Ventilation Guide.
Refrigerator: Counter-Depth vs Standard and Configuration
Standard depth refrigerators are typically 30 to 34 inches deep and protrude beyond the depth of the surrounding cabinets. They offer more interior volume for the exterior footprint but stick out from the cabinet line.
Counter-depth refrigerators are typically 24 to 26 inches deep and sit flush with the surrounding cabinet faces. More integrated look, less interior volume. Higher cost for the same exterior width compared to standard depth models.
Door swing and clearance: The refrigerator door swing affects kitchen traffic flow significantly. A door that opens into an aisle or toward the stove creates a workflow hazard. French door models require less clearance per door. Side-by-side models require two full door swings. Counter position of the door hinge relative to the adjacent wall or cabinet must be checked before ordering. For clearance and layout implications, see the Kitchen and Bathroom Materials Overview Guide.
Dishwasher
Standard dishwashers are 24 inches wide and fit into a standard base cabinet opening next to the sink. Compact dishwashers are 18 inches wide for smaller kitchens. Placement adjacent to the sink is standard practice because of the shared drain and water supply connections.
The dishwasher door must be able to open fully without being blocked by an adjacent cabinet door, the kitchen island, or a person standing at the stove. Check the door swing clearance in the cabinet layout before finalising the dishwasher location.
Pro Tip
Get the cut sheets for every appliance before cabinet orders are placed. Cut sheets show the exact cutout dimensions, clearance requirements, electrical specifications, and installation notes from the manufacturer. These are the numbers your cabinet maker and electrician need. Product pages on appliance websites are marketing materials. Cut sheets are specifications. They are different documents. Ask specifically for the cut sheet, not the product brochure.
Fixtures and Systems: Electrical Requirements for Kitchens and Bathrooms
Electrical planning for a kitchen or bathroom renovation in Ontario involves both building code requirements and practical considerations. The code sets the minimum. Good planning goes beyond the minimum. Have this conversation with your electrician before rough-in work begins.
Kitchen Electrical Requirements
Bathroom Electrical Requirements
One Thing Worth Remembering
Electrical work in kitchens and bathrooms in Ontario must be performed by a licensed electrical contractor and is subject to inspection. If your renovation involves new circuits, panel upgrades, or moved outlets, confirm that your contractor is pulling the required electrical permit and arranging for the ESA inspection. Work done without permits can affect your insurance coverage and your ability to sell the home.
Where to Find Smart Renovations
We serve homeowners across the Greater Toronto Area from two locations. If you are working through a kitchen and bathroom flooring renovation and want straightforward advice from a team that does this every day, we are here. You can also explore our work on Houzz.
Richmond Hill Office
Woodbridge Office
Frequently Asked Questions
What is the toilet rough-in dimension and why does it matter?
The rough-in dimension is the distance from the finished wall behind the toilet to the centre of the drain outlet in the floor. Standard is 12 inches in most Canadian homes. If you order a toilet with the wrong rough-in, it will not fit the existing plumbing without moving the drain. Always measure the rough-in of your existing toilet before ordering a replacement. This is the most frequently missed specification in bathroom fixture selection.
What is the difference between a thermostatic and a pressure-balancing shower valve?
A pressure-balancing valve maintains the ratio of hot to cold water when pressure changes elsewhere in the house, preventing scalding if someone flushes a toilet mid-shower. This is required by code in Canada. A thermostatic valve maintains an exact temperature regardless of pressure fluctuations. It is set once and holds that temperature consistently. Thermostatic valves cost more and are worth the upgrade for households sharing showers, or where multiple shower outlets are being specified.
Can I put a farmhouse sink in any kitchen cabinet?
No. A farmhouse sink requires a base cabinet specifically designed to accommodate it. The front face of the standard cabinet door is removed and the apron of the sink takes its place. This is a cabinet decision that must be made at the time of cabinet ordering, not after installation. Specify the farmhouse sink first, then order the compatible cabinet base.
How many dedicated electrical circuits does a kitchen renovation require in Ontario?
At minimum: one dedicated circuit for the refrigerator, one for the dishwasher, one for the microwave, one for the electric range or cooktop (240V), and a minimum of two 20-amp small appliance circuits for counter outlets. That is five to six dedicated circuits for a standard kitchen renovation. Older homes with smaller electrical panels may require a panel upgrade to accommodate this load. Discuss panel capacity with your electrician early in the planning process.
Is a freestanding bathtub appropriate for an upper-floor bathroom?
Possibly, but it depends on the subfloor and framing. A cast iron freestanding tub filled with water can exceed 500 kilograms concentrated on a small footprint. Most residential floor systems are not designed for this load. An acrylic freestanding tub is significantly lighter and has fewer structural implications. Regardless of material, a structural assessment should be done before specifying any freestanding tub on an upper floor. This conversation should happen before the tub is purchased.
What is the difference between ducted and recirculating range hoods?
A ducted range hood exhausts cooking air, grease, and moisture through a duct to the exterior. It is significantly more effective than a recirculating system. A recirculating range hood filters air through charcoal filters and returns it to the kitchen. No duct is required, but it is much less effective at removing moisture and odours. For kitchens with any serious cooking activity, a ducted system is the appropriate specification. For full ventilation guidance, see the Lighting and Ventilation Guide.
Do all bathroom outlets need to be GFCI protected in Ontario?
Yes. Ontario code requires GFCI protection for all outlets within 1.5 metres of a water source. In a bathroom, this effectively means every outlet in the room. GFCI protection can be provided by GFCI outlets at each location or by a GFCI breaker protecting the entire circuit. This is a code requirement that applies to all new and renovated bathroom electrical work, not a recommendation.
What is a comfort height toilet and is it worth choosing?
Comfort height toilets have a seat height of 17 to 19 inches, approximately the same as a standard chair. Standard height toilets are approximately 15 inches. Comfort height is easier to sit on and stand up from, particularly for taller adults and older users. Most households that choose comfort height have no regrets. It is worth knowing about before you default to whichever is in the showroom.
When should I finalise my appliance selections relative to cabinet ordering?
Before cabinet orders are placed. Appliance cutout sizes, depth dimensions, and clearance requirements must be known when the cabinet layout is finalised. Ordering cabinets before appliances are selected risks cutout sizes that do not match, cabinet openings that are too tight or too wide, and panel provisions that are in the wrong location. Get the cut sheets for every appliance. Share them with your cabinet supplier and electrician before anything is ordered.
What is a pop-up outlet in a kitchen island and how does it work?
A pop-up outlet is a retractable outlet unit that is flush with the island countertop surface when not in use and extends upward when needed. It keeps the island surface visually clean. The conduit for the pop-up must be run through the island cabinet during fabrication and down through the floor to the electrical supply. The island must be built with this provision from the start. It cannot be added after the island is installed without significant work.
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