What vanity width works best in a standard 5x8 bathroom layout?

A 36-inch vanity is the sweet spot for a standard 5x8-foot bathroom — it provides meaningful counter space and storage while preserving the clearances required by the Ontario Building Code. This is the most common vanity size installed in GTA bathroom renovations for good reason: it fits the proportions of the room without crowding the toilet or blocking the door swing.

The 5x8-foot bathroom is the dominant layout in the GTA's enormous stock of post-war homes built between 1945 and 1970 — the bungalows, split-levels, and two-storey homes found throughout Scarborough, North York, Etobicoke, Mississauga, and the inner suburbs. These bathrooms typically have the toilet centred on one 5-foot wall, the tub along the 8-foot wall, and the vanity on the opposite 5-foot wall from the toilet (or sometimes on the same wall). Understanding your specific layout is essential before choosing a vanity width.

Sizing by Layout

If the vanity sits on the 5-foot (60-inch) wall, you have 60 inches of total wall space. A 36-inch vanity leaves 24 inches of open space — enough for comfortable access and clearance from the adjacent wall or door frame. A 48-inch vanity can also work on a 5-foot wall if the door is on the 8-foot wall and doesn't swing into the vanity. However, a 48-inch vanity on a 5-foot wall leaves only 12 inches of clearance to the nearest obstruction, which can feel tight.

If the vanity sits on the 8-foot (96-inch) wall opposite the tub (a less common but not unusual layout), you have more room to work with. A 48-inch or even 60-inch vanity can fit comfortably, though you need to maintain the code-required 15 inches from the toilet centreline to the edge of the vanity and 21 inches of clear space in front of both the vanity and the toilet.

Practical Recommendations

For most 5x8 GTA bathrooms, here's what works:

• 30-inch vanity: Minimum practical size. Provides a single sink with very limited counter space. Suitable for tight layouts or powder rooms but feels cramped in a primary bathroom
• 36-inch vanity: The ideal balance. Enough counter space for daily essentials beside the sink, adequate storage below, and comfortable clearances in the room. Available in a huge range of styles from $400 to $2,000 at GTA suppliers
• 42-inch vanity: A good upgrade if your layout allows it. The extra 6 inches of counter space makes a noticeable difference in daily usability
• 48-inch vanity: The maximum that typically works in a 5x8 layout without compromising clearances. Provides generous counter space and storage. Expect to pay $600–$2,500 for a quality 48-inch semi-custom vanity

Depth matters too. Standard vanity depth is 21 inches (front to back), but if the door swing is tight or the bathroom feels cramped, a narrow-depth vanity at 18 inches can free up valuable floor space. Several manufacturers now offer slim-profile vanities specifically designed for compact GTA bathrooms and condos. The trade-off is less storage space and a smaller sink bowl, but the improved traffic flow is often worth it.

Before You Buy

Measure the actual room dimensions — not the nominal 5x8. Many older Toronto homes have walls that are slightly out of square, and actual dimensions may be 59 or 61 inches rather than a perfect 60. Measure at the floor and at counter height (36 inches), because walls in pre-war and post-war homes are rarely perfectly plumb. Also note the location of the water supply lines and drain — your new vanity needs to accommodate the existing plumbing positions unless you're budgeting for a plumber to relocate them ($500–$1,500 for supply and drain relocation in the GTA). Take these measurements to your vanity supplier or bring them to your contractor so they can confirm the fit before ordering.