Most kitchen faucet holes are 1 3/8 inches, with 1 1/2 inches as a common alternative.
- Measure the hole diameter and deck thickness before buying a new faucet.
- Use a deck plate to cover extra holes or a hole saw to enlarge a small hole.
What is the standard kitchen faucet hole size?
Most kitchen sinks have a faucet hole of 1 3/8 inches. That is the most common diameter in modern homes. Many faucets also fit a 1 1/2 inch hole. The difference is small, about an eighth of an inch. Manufacturers design faucets to work with both sizes. Always measure your existing hole to be certain.
How many holes does a standard kitchen faucet need?
A standard kitchen faucet needs one hole for the main spout and handle. Some faucets use a separate side sprayer, adding a second hole. Pull-down faucets often combine the sprayer in the spout, so they need only one hole. Four-hole setups include a soap dispenser or air gap. Check your sink's hole configuration before ordering.
What is the standard deck thickness for a kitchen faucet?
The deck is the flat surface where the faucet mounts. Most kitchen sink decks are 1 to 2 inches thick. Faucet mounting hardware must reach through this thickness. Standard faucet shanks are about 1 to 2 inches long. If your deck is thicker, you may need a longer shank. Measure the deck thickness from top to bottom.
How do I measure a kitchen faucet hole?
Use a ruler or tape measure to find the hole's diameter. Measure across the widest part of the hole, from inner edge to inner edge. For a standard hole, you should get about 1 3/8 inches. If you get 1 1/2 inches, that's also common. Write down the measurement before shopping. Also measure the distance between holes if you have multiple.
What if my kitchen faucet hole is non-standard?
Older sinks may have holes that are 1 inch or 1 1/4 inches. Some European sinks use 35 mm holes, which is about 1 3/8 inches. If your hole is smaller than 1 3/8 inches, you may need to enlarge it. Use a hole saw or a step drill bit. If the hole is larger, use a deck plate or escutcheon to cover the gap. Always check the faucet's required hole size in the specs.