Laundry faucets work harder than almost any other fixture in a Canadian home. They fill mop buckets, rinse muddy boots in November, soak hockey gear and hand-wash sweaters, usually over a deep utility tub in a basement or a compact laundry closet where every centimetre is spoken for. Whether you are outfitting a condo nook in Vancouver, a farmhouse mudroom on the Prairies or a century-home basement in Halifax, the difference between a faucet that suits the space and one that fights it comes down to a handful of measurements.
This guide covers the dimensions that decide fit, how to measure before you shop, and the mistakes behind most returns. All you need is a tape measure and ten minutes.
The five measurements that decide fit
Every laundry faucet spec sheet, whatever the brand, answers the same five questions.
| Measurement | What it describes | Why it matters |
|---|---|---|
| Spout reach | Horizontal distance from the centre of the mounting hole to the centre of the water stream | Too short and water dribbles down the back of the tub; too long and it splashes off the front edge |
| Spout height | Vertical distance from the mounting surface to the spout outlet and to the highest point of the faucet | Decides whether a pail fits underneath and whether the faucet clears a shelf, cabinet or window sill above |
| Hole spacing | Centre-to-centre distance between the mounting holes in the sink deck or counter | The faucet must match the holes you have, or you will need a deck plate or fresh drilling |
| Hole diameter | The size of the drilled opening the faucet body or valves pass through | A shank that is too large will not drop in; one much smaller can sit off-centre |
| Deck thickness | How thick the sink ledge or countertop is where the faucet mounts | Mounting hardware has a maximum grip; thick stone tops and some moulded tubs exceed it |
Standard laundry faucet configurations
Laundry faucets follow the same mounting conventions as the rest of the plumbing world, which keeps things predictable.
- Single-hole: one lever controls hot and cold through a single body. The most common choice for new laundry sinks and the easiest to clean around.
- Centreset: two handles and a spout on one compact base, made for holes drilled 4 inches (about 102 mm) centre-to-centre. Common on older laundry tubs.
- Widespread: separate hot and cold valves with an independent spout, typically set 8 inches (about 203 mm) apart. Less common in laundry rooms but useful when the deck is already drilled that way.
- Wall-mount: the faucet attaches to supply lines coming out of the wall rather than to the sink. Traditional for basement laundry tubs across Canada, and the one configuration where rough-in plumbing, not the sink, dictates fit.
Many households also borrow from the kitchen aisle. A pull-down model from our kitchen faucets collection is a legitimate laundry upgrade: the sprayer reaches every corner of a deep tub and makes rinsing bulky items easier. Just check the reach and height numbers against your sink the same way you would for a purpose-built laundry faucet.
How to measure your laundry space
- Count and measure the holes. If a faucet is already installed, measure centre-to-centre between the outer holes. If you are buying new, choose the sink first so the drilling matches. Our laundry and utility sinks list their faucet drilling in the specifications.
- Measure the bowl. Note the front-to-back depth of the basin and where its centre falls relative to the faucet holes. Spout reach should land the stream near the centre of the bowl, or over the drain.
- Measure upward. From the mounting deck to the bottom of any shelf, cabinet or window sill above. The faucet's overall height, plus room for your hand on the handle, must fit within it.
- Measure the deck. Check the thickness of the mounting ledge against the maximum on the spec sheet.
- Check below. Confirm you can reach the supply connections, and note whether your shut-off valves are standard. In many older Canadian basements they are not, and budgeting for new shut-offs at the same time is money well spent.
Clearance rules worth respecting
Exact clearances are a judgment call for your installer and your local plumbing authority, and provincial codes build on the National Plumbing Code in slightly different ways. But a few general rules hold everywhere from Victoria to St. John's.
- Leave swing room. A swivel spout needs clear space through its full arc, including past the handles at full rotation.
- Respect the splash zone. Deep laundry tubs forgive a lot, but a tall gooseneck over a shallow bowl will splash. Higher spouts want deeper basins.
- Keep an air gap. The spout outlet should sit well above the flood rim of the sink so a backed-up basin can never touch it. Reputable faucets are designed this way; aftermarket hose attachments can defeat it, so use ones with proper backflow protection.
- Think about winter. Laundry areas in basements and attached garages often sit against exterior walls, and supply lines in cold cavities are a freeze risk in most of the country. Route and insulate them properly, and ask your plumber about frost protection if the space is unheated.
Common fit mistakes
- Buying a faucet before choosing the sink, then discovering the drilling does not match.
- Ignoring spout height under a wall cabinet or window sill, a classic problem in stacked-laundry closets.
- Assuming a wall-mount faucet fits any wall. The rough-in spacing behind the finish wall is what matters, and moving pipes costs more than any faucet.
- Choosing a short-reach faucet for a wide double tub, leaving one bowl the stream can barely touch.
- Forgetting hose duty. If you fill a portable washer or attach a utility hose, look for a threaded spout outlet or plan for a proper adapter with backflow protection.
Reading the spec sheet
The line drawing on a manufacturer's spec sheet is the most useful page in this whole process. Find the reach, height, hole spacing and maximum deck thickness on the drawing and compare them against your notes. Watch the units, since Canadian spec sheets mix inches and millimetres freely. And look for certification marks such as cUPC or CSA, which indicate the fixture has been tested to the standards Canadian plumbing codes reference. Your local inspector and plumber have the final word, so defer to them on anything code-related.
Once the numbers line up, the rest is taste. For more room-by-room sizing help, browse our buying guides, covering fixtures for every corner of the house, with everything shipping Canada-wide.
Frequently asked questions
What is the standard hole spacing for a laundry faucet?
The same conventions as bathrooms and kitchens apply: single-hole, 4-inch centreset and 8-inch widespread are the common deck-mount patterns, while wall-mount utility faucets are sized to the rough-in spacing of the supply pipes. Always confirm against your sink's actual drilling.
Can I use a kitchen faucet on a laundry sink?
Usually, yes. If the hole count and diameter match and the reach suits the bowl, a kitchen faucet, especially a pull-down model, is a practical upgrade for laundry work. Verify the maximum deck thickness if your utility sink has a thick moulded ledge.
How high should the spout be above a laundry tub?
High enough to fit your biggest bucket underneath, but proportionate to the bowl depth so the stream does not splash. There is no single correct number; match spout height to basin depth and to whatever clearance exists above the sink.
Do laundry faucets need to be certified in Canada?
Fixtures connected to potable water are expected to meet the standards referenced by Canadian plumbing codes, so look for recognized marks such as cUPC or CSA on the spec sheet. Requirements are enforced locally, so check with your municipality or plumber if unsure.
