Most of the time, the hole for your kitchen faucet will be 1 3/8 inches across. That's the standard size you'll typically see. But here's the catch - not all faucets play by the same rules. Some of them require a little more breathing room with a 1 1/2-inch hole instead.
Once you've identified the type of tap you're interested in purchasing, then you can start thinking about the concept of a 'standard size'. Most modern mixer taps will fit a standard sized mounting hole in your sink/worktop. The standard size for the hole is 35mm.
To do this, you'll need to measure the diameter of the pre-drilled hole and compare it to the diameter of the base of the tap. If they are the same or similar, the tap should fit snugly and securely. Multi-hole kitchen tap fittings, on the other hand, are designed to fit sinks with specific hole configurations.
Standard Faucet Hole Diameters
The usual faucet hole size is about 1 3/8 inches in diameter. This size fits many faucets for both kitchen and bathroom sinks. But, some faucets need a hole that's 1 1/2 inches in diameter. Always check your faucet's specs to make sure it fits your sink's hole size.
Measure the Sink Opening
Common Sizes: Most sink drain openings are 1 1/4 inches in diameter, but you might also find sizes like 1 1/2 inches and 1 5/8 inches.
The standard sink size is about 22 inches long to 30 inches wide, but once again it's crucial to take proper measurements. If you're replacing a drop-in sink with rims, start measuring from the outer lip of the sink, not the basin itself. If you have an undermount sink, start measuring where the edge meets the counter.
For bathroom vanities the standard size is 1 1/2 inch. Manufacturers have also taken into account the old days where sizes were different again, so sink plugs are still available in: 1 inch, 1 1/4 inch, 1 3/8 inch, 1 5/8 inch, 1 7/8 inch, 2 inch, 2 1/4 inch, 2 3/8 inch and 2 1/2 inch sizes.
There are many types of faucets for bathroom use and not all bathroom sink faucets work with every sink. It's important to make sure the faucet you choose will fit your sink or basin. Standard faucet drillings are centerset, single-hole or widespread.
KITCHEN FAUCET
Kitchen faucets come in many configurations, anywhere from 1 hole to 4 holes. Although some faucets come with a deck plate to cover the other side holes on a sink, in many cases, that same faucet can be installed without the deck plate. Most faucets will fit into 1-3/8” holes.
If your current mounting setup has more than one hole, measure the distance between the center of the far-left hole to the center of the far-right hole. This is important if you plan to include a deck plate, as you need to make sure that the plate is wide enough to cover the extra holes.
If there's one hole, you'll need a mono mixer tap. And where there are two holes, you'll need pillar taps or a mixer tap that uses two tap holes. Finally, think about what spout size is needed. Spouts vary in height, the length they protrude over the sink and the angle at which they project water.
Not all taps and countertop basins will be the same size, so you'll want to make sure that there is adequate space from the top of your countertop basin to where the spout exits on the tap.
Standard taps and spouts generally require a hole of at least 22mm in diameter. Monobloc mixer taps, taking both a hot and cold supply, mostly require a minimum 32mm diameter hole.
The most common size used by kitchen tap manufacturers is M10 size, however some of taps have M8 or M12 water inlet connections. Make sure to measure the connection first.
Most of the time, the hole for your kitchen faucet will be 1 3/8 inches across. That's the standard size you'll typically see. But here's the catch - not all faucets play by the same rules. Some of them require a little more breathing room with a 1 1/2-inch hole instead.
There are three common drain sizes for bathroom sinks, 1.25", 1.5" and 1 5/8 (1.625"). You need to select a drain that is the same size or SMALLER than the hole in your sink. For example, if you have a sink with a drain hole of 1.75", than any of the drains 1.25", 1.5", or 1.65" will work.
the simple answer is that basin wastes are 1¼” BSP (32mm), whereas bath and kitchen sink wastes are 1½” BSP (40mm).
Sinks generally come in one of three configurations: 6”, 8”, and 6”-16”. The faucet will cover the holes in most of these configurations. You will need to measure the width between the outer holes or estimate it by measuring the width of the deck plate. A 3-hole sink is very common.
No, there is a variety of kitchen faucet styles and fittings, and the right style will depend on your home's design.
Types of taps
Both taps can all be used for the basin, shower or bath and are often available in the same style for different applications, or you can mix and match. When it comes to choosing taps for your bathroom, you need to consider your existing plumbing, where the taps will be installed and how they'll be used.
The standard size hole for a kitchen faucet is typically 1 3/8 inches (35 mm) in diameter, as per industry norms . This size is commonly used for the mounting hole in most kitchen sinks. It's important to note that this is a general standard, but variations may exist.
If you have the old plug it should have the size embosssed on the top surface. This is usually imperial, so 1 1/2 inch or 1 3/4 inch, but it is sometimes missing. You can measure the old plug across its top diameter (in imperial).
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