Normal Vessel Drain Hole Size in Granite Countertops

Vessel Sinks

• Few rules govern the appearance of vessel sinks. They can be any type of sturdy, waterproof container on top of the counter. Wide-ranging designs such as round stone dishes or square glass bowls are available for installing as a vessel sink. You can even create your own vessel sink from a container that is waterproof on both sides and stable enough to hold water. Take into consideration the size of the vessel sink and the height of your family members. The counter might have to be lowered so your family members can reach the vessel sink because it sits higher than a traditional bathroom sink.

Granite Countertops

• Granite provides a sturdy, long-lasting counter material for a bathroom. A biannual treatment of the surface with a sealant will keep the counter waterproof and protected. According to "Ultimate Guide to Bathrooms: Plan, Remodel, Build," granite counters are the most popular material used for bathrooms by remodelers. This tough material will need a diamond-tipped hole saw or a masonry bit for cutting into it.

Holes for Sinks

• The number of holes you have to cut in your granite counter can be as few as one or as many as four. With a vessel sink, you must have one drain hole. The faucet and valves can add up to three more holes on the counter. Installing the faucet into the counter is called deck mounting. If you choose this option, be sure that the faucet is tall enough to reach up and over the side of the sink and flow into the center of the sink. If you do not wish to drill more than one hole into the granite when installing your vessel sink, wall mount the faucet and valves.

Hole Size

• The drain holes for sinks in a bathroom are a standard 1 1/2 inches across, according to "Ultimate Guide to Plumbing: Complete Projects for the Home." The drain hole in the vessel sink needs to match the hole in the granite countertop. If you are installing a deck-mounted faucet and valves on the countertop, you need to follow the manufacturer's instructions for the hole size because these can vary by manufacturer.