What Size Bathroom Vanity Do I Need? The Complete Sizing Guide for Canadian Homeowners

Choosing the wrong size bathroom vanity is one of the most common — and most frustrating — mistakes in bathroom renovation. A vanity that is too wide crowds the toilet or blocks a door. One that is too narrow looks out of proportion and leaves you without enough counter space. And once the old vanity is out and the new one is delivered, getting the size wrong is an expensive problem to fix.

This guide walks you through exactly how to measure your bathroom, understand standard vanity sizes, follow clearance rules, and match the right size to your specific bathroom type — whether you are renovating a powder room, a main bathroom, or a large master ensuite. By the end, you will know exactly what size to order before you shop.

Step 1 — How to Measure Your Bathroom for a Vanity

Before you look at a single product, measure your bathroom. Do this with a tape measure — not by eye — and write the numbers down. Here are the four measurements that matter:

1. Available Wall Width

Measure the wall where the vanity will sit from one side to the other — from corner to corner, or from corner to the nearest obstruction (toilet, door frame, shower wall). This is your maximum vanity width. Subtract 2 inches from this number to give yourself installation clearance. The result is your target maximum vanity size.

For example: if your wall measures 38 inches from the corner to the shower, your target maximum vanity size is 36 inches.

2. Distance from the Vanity Wall to the Toilet

Measure from the wall where the vanity goes to the centerline of the toilet. This helps you understand how much width the vanity can occupy before it crowds the toilet. Most building codes require a minimum of 15 inches from the toilet centerline to any side obstruction — but 18 inches feels much more comfortable in practice.

3. Door Swing Clearance

Open every door that swings into or near the vanity area — the bathroom entry door, any interior cabinet doors, and the shower door if applicable. Measure exactly how close each door comes to the vanity wall. A vanity that is 2 inches too wide can block a door from opening fully.

4. Depth of the Space

Measure from the vanity wall to the nearest obstacle in front of it — the opposite wall, the toilet, or the tub edge. Most vanities are 18–22 inches deep. Building guidelines recommend a minimum of 21 inches of clear floor space in front of the vanity for comfortable use. Make sure you have at least that much clearance.

Step 2 — Clearance Rules You Cannot Ignore

Even if a vanity fits the wall width, it may not work in your bathroom if it violates clearance requirements. Here are the key rules used in Canadian bathroom design and building codes:

These clearances apply to the installed vanity — meaning the cabinet with doors or drawers open. A 36" vanity with drawers that extend 18" when open needs 39 inches of clear space in front of it to open comfortably. Keep this in mind when measuring small bathrooms.

Standard Bathroom Vanity Sizes in Canada

Canadian bathroom vanities are sold in standardized width increments. Understanding these standard sizes helps you narrow down your options quickly once you have your measurements in hand.

Vanities are also sold in non-standard sizes — 32", 40", 42" — but the sizes above are the most widely stocked at HBDepot and the easiest to find in matching mirrors and accessories.

Step 3 — Size Recommendations by Bathroom Type

Different bathroom types have different priorities. Here is what works best in each:

Powder Room (Half Bath)

A powder room typically has the least wall space of any bathroom in the home — often as little as 20–30 inches on the vanity wall. The goal is to fit a functional sink with minimal countertop in the tightest possible footprint.

• Recommended size: 16" to 24"
• Best configuration: Wall-mount for maximum visual space, or compact freestanding
• Storage priority: Low — powder rooms rarely need significant storage
• Shop: Vanities 24 inches and under →

Main Bathroom / Guest Bathroom

The main bathroom in a Canadian home is typically used by one to two people and needs practical storage without overwhelming the space. A 36" vanity is the most popular size in this category — wide enough for daily use, with one or two doors and drawers for storage.

• Recommended size: 30" to 36"
• Best configuration: Freestanding or wall-mount, single sink
• Storage priority: Moderate — 2–4 drawers or doors is enough
• Shop: Vanities 30 to 36 inches →

Full Bathroom with Extra Storage Needs

If your main bathroom serves a busy household — multiple children, heavy daily use — a wider vanity in the 40–48 inch range gives substantially more countertop and drawer storage without requiring a double sink. A 48" single-sink vanity often has more usable storage than a 60" double-sink at a lower cost and complexity.

• Recommended size: 40" to 48"
• Best configuration: Freestanding, single sink, multiple drawers
• Storage priority: High — look for 4–6 drawers
• Shop: Vanities 40 to 48 inches →

Master Ensuite (One Person)

A primary ensuite used primarily by one person benefits from a wide single-sink vanity — maximum countertop surface, maximum drawer storage, without the added plumbing complexity of a double sink. A 48–60 inch single-sink vanity is the most luxurious configuration for one person.

• Recommended size: 48" to 60"
• Best configuration: Freestanding or wall-mount, single sink
• Storage priority: High — 6+ drawers ideal
• Shop: Vanities 54 to 64 inches →

Master Ensuite (Shared by Two People)

A primary ensuite shared by two adults is the classic double-sink scenario. The 60" double sink is the most popular choice across the GTA — wide enough for two sinks with comfortable shared countertop space, without requiring an oversized bathroom layout.

• Recommended size: 60" to 72"
• Best configuration: Freestanding or wall-mount, double sink
• Storage priority: High — look for drawers on both sides
• Shop: Vanities 54 to 64 inches → | Vanities 70 inches and over →

Luxury Ensuite

For large primary bathrooms in custom homes and upscale GTA properties, a 72" or wider double sink vanity becomes a true centrepiece — with room for generous countertop space between and beside the sinks, deep drawer stacks, and optional matching side cabinets for additional storage.

• Recommended size: 72" to 108"
• Best configuration: Double sink with side cabinets
• Shop: Vanities 70 inches and over →

When to Choose a Double Sink Vanity

Double sink vanities are popular — but they are not always the right choice. Here is a practical framework for deciding:

Choose a double sink if:

• Two adults share the bathroom and have similar morning schedules
• You have at least 60 inches of available wall width
• Your plumbing has — or can be roughed in for — two separate drain locations
• You want a symmetrical, high-end look for a luxury ensuite

Choose a single sink instead if:

• The bathroom is used mainly by one person
• You want maximum countertop in a wide vanity — a single sink in a 60" cabinet gives far more usable counter than two sinks in the same space
• Your existing plumbing has only one drain rough-in and you want to avoid relocation costs
• Budget is a consideration — single sink vanities and their plumbing hookup are less expensive

What About Vanity Depth?

Most bathroom vanities in Canada are 18 to 22 inches deep — measured from the wall to the front edge of the cabinet. This is the standard range for residential bathroom layouts, and it works in most bathrooms.

Depth matters most when your bathroom has limited floor space in front of the vanity. If you have exactly 21 inches of clearance from the vanity wall to the toilet or opposite wall, a 22-inch deep vanity will leave only 21 inches of standing room — technically compliant, but tight in practice. In very small bathrooms, choosing an 18" deep wall-mount vanity can meaningfully improve usability.

What About Vanity Height?

Standard bathroom vanity height in Canada is 32 to 36 inches from the finished floor to the top of the countertop. Most freestanding vanities are built to 34–35 inches — a height that works comfortably for adults of average stature.

"Comfort height" vanities at 36 inches are increasingly popular for primary ensuites — especially for taller adults who find standard 32-inch countertops uncomfortable to use for extended grooming routines. If you are installing a wall-mount vanity, you have the freedom to set the countertop at any height you choose by adjusting where the mounting bracket is installed — a genuine advantage of the floating format.

For households with young children, a lower countertop (32 inches) makes the sink more accessible for kids. A step stool is also a practical solution that avoids compromising adult comfort.

Shop Bathroom Vanities by Size at HBDepot

HBDepot organizes its bathroom vanity collection by size, making it straightforward to find the right model once you know your measurements. Browse by size category:

• 24 inches and under — Powder rooms and very small bathrooms. Compact freestanding and wall-mount models from $89.
• 30 to 36 inches — Standard single bathrooms. The most popular size range in our catalogue, with the widest selection of brands and styles.
• 40 to 48 inches — Full bathrooms with extra storage. Generous countertop and drawer space without a double sink.
• 54 to 64 inches — Master ensuites. Single and double sink options. The 60" double sink is our most popular ensuite vanity.
• 70 inches and over — Luxury ensuites. 72" double sink vanities, complete sets with side cabinets, up to 108 inches.

Many models are in stock at our Vaughan showroom (7250 Keele St, Unit 282, Concord) for same-week pickup or fast delivery across Toronto and the GTA. Contact our team if you need help confirming the right size for your bathroom layout — we are happy to review your measurements and make a recommendation.

Frequently Asked Questions