Using your measuring tape or a ruler, begin with the lip, or edge, that sits on the kitchen countertop. However, if you require a more specific size, you can design a custom-fitted bathroom vanity of (almost) any size. That way, you have enough space to clear the P-trap. Make sure you have enough room for the sink and the right size for the countertop. We initially show the p trap bac. Moving over to the toilet. Also to know, what is standard bathroom sink drain size? I discovered the large nut on the plug hole was loose and cracked. Does it matter if it is a wall mounted faucet? [1] All the other components of the kitchen undermount sink drain, such as the sink strainer, the bowl-shaped piece that is inside the mouth, also match these dimensions. Even when fixing a sink for the first time, how to measure for kitchen sink matters a lot. Measure 21 inches (approximately) above the finished floor. Measure the Sink Measure that opening to ensure you get the right size drain, or check the manufacturer's instructions that came with the sink, as they should include the corresponding drain size. Standard Sink Drain Pipe Sizes. Step 1: Determine Project Scope. Standard Sink Supply Line Size The branch lines, which are the ones that feed individual fixtures, are 1/2 inch in diameter. The drain has a threaded pipe sticking out below the lock nut that secures the drain to the sink basin itself. Lay a straightedge across the top of the sink, and then place a ruler or tape measure at the bottom of the sink and measure the distance to the straightedge. Measure the height, top to bottom, of the sink’s exterior. When learning how to measure kitchen sink size, you may need to make some adjustments for your type of sink. On an average, cabinets measure 36 to 42 inches high, 24 inches deep and 25-1/4 to 26 inches wide. You can avoid such an unpleasant experience if you know how to measure a kitchen sink accurately. Measure the diameter of the sink drain hole and note it down. Important things to know when purchasing a new lavatory drain for a bathroom or bar sink: Drains are measured at the threaded portion of the drain (this is the section that will go through the sink and countertop). Some bathroom sinks have a slightly narrower opening at … Some vanity tops have two or even three sink bowls. A mismatched kitchen sink with the countertop looks awful and comes with many inconveniences. In this episode of Repair and Replace, Stephany shows how to replace a drain in a bathroom sink.Does your sink have a pop-up drain? These pipes will generally either be 1 ¼ or 1 ½ inches in diameter and are commonly installed at the base of your sink. To find the center of the drain hole, make four measurements from each side of the sink, starting at that same "just above the curve" point, but only measure to the center of the drain this time. While the standard kitchen sink size measures 22-by-30 inches (Length by Width), sink sizes generally depend on the interior width of the sink’s cabinet. While a bathroom sink's design and overall size may vary from one model to the next, the drain holes are fairly standard, 1.25 inches being a general standard, with widths of 1.5 inches and 1.625 inches also common. Traditionally most drains have 1 ½ inch outlet that connects to a tailpiece, forming a P-trap pipe configuration. Installing your sink also means understanding standard sizes for your sink’s drain pipes. Don’t measure the top of your plug as this can sometimes be wider than the base part – meaning your plug will be too large for the sink hole. Sinks are generally available in standard sizes that coordinate with standard countertop cutouts. All the manufacturers of the sink drains have come up with a standard size of three and a half inches in diameter. Most drain openings are 1 1/4 inches, although 1 1/2 inches and 1 5/8 inches are also common sizes. My bathroom faucet was 4 inches from the centers of the handles, or 4 inch center to center. Most drain openings are 1 1/4 inches, although 1 1/2 inches and 1 5/8 inches are also common sizes. When measuring a bathroom sink, use a tape measure starting at the edge to find out the length and width. Some older sinks may have drains that connect to a 1 1/4-inch tailpiece, but most modern drains have a 1 1/2-inch outlet. I'm plumbing in the PVC drain line for a single bathroom sink. It's about 5 feet away from the main stack in the house. Any standard drain assembly fits into an opening of this size very easily. How to install a bathroom sink drain pipe. Joined: Dec 23, 2015 Location: North Andover, Massachusetts. Click through the tabs above and learn about bathroom sinks. The depth is the measurement of the interior of the water bowl. A standard sink hole is 1-½â€ in diameter and will accommodate most lavatory drains. This information is listed with drain products. If you choose a vessel sink that rests on countertop, you’ll need to take into consideration things like the height and reach of the faucet as well. The sink drain needs to fit your bathroom sink’s drain opening to work properly. The size of the hole helps determine which size drain is needed for that particular sink. This sink can be placed into any bathroom design or layout, but its narrow size is perfect for small bathrooms. Pull up the existing sink stopper. When I measure the thread it's 40mm or 1 3/4" but none that size are forsale. If it is you ll see a 2 inch plastic pipe stubbing out of the wall under. To ensure a watertight seal i m applying a bead of silicone all around the drain pipe. The bathroom sink’s water lines are roughed-in 3 inches above the drain. Drains are generally widest at the top and narrower a little ways into the drain, so be sure to measure both the width and the depth to find a crumb cup that fits properly. To figure out what size you have now, use a tape measure and measure the distance between the center of one handle to the center of the other handle. Most drain openings are 1 1/4 inches, although 1 1/2 inches and 1 5/8 inches are also common sizes. Measure the edge of the sink lengthwise; Use a marker to mark the full length of the sink; Measure the height of the sink, excluding the faucet height; Mark the full height of the sink; Lastly, measure the depth or distance the sink is from the wall. Drain holes in bathroom sinks are 3.5 cm (1.375 inches) in diameter because the drain fits inside the drain hole, and the walls of the drain itself take up some space. Before feeling overwhelmed by the variety of beautiful kitchen sinks available at the marketplace, you need to know the size that is compatible with your countertop and cabinet. If you need to install a new pop up drain for any reason these instructions will simplify the process. The combination of these measurements will give you the size of your current sink. If your bathroom sink vanity is 40” tall and has a 6” deep sink, 18”-20” from the floor is a perfect rough-in height for a bathroom sink drain. Yes, yes it does. You also need to know a little something about sink size, including how to properly measure a bathroom sink and what size bathroom sink you need based on countertop space and sink style. Measure Your Space. If you buy a new sink with a deeper basin, it may extend too low to drain as well as it should. The drain is sealed with plumber's putty to fill any gaps or variances between the drain rim and the sink drain hole surface. The IKEA Hörvik Countertop Bathroom Sink is made from natural dolomite giving it a glossy and scratch-resistant surface. From the center of the drain, measure 4 inches to the left and 4 inches to the right. To find this, measure from the deepest part of the basin to the top edge. The hot line and cold line are spaced 8 inches apart (from left to right). The drainpipe threads onto this pipe with a connector. I note the U bend is 1 1/4 so I guess that's the size of the nut to purchase ? EthylOH Member. The area you need to measure is the diameter of the drain mesh or the underside of your current plug. To connect the drainpipe, use a solid metal or brass connector on the end of a piece of PVC drainpipe. How do you measure sink plug size? It is important to understand how to measure kitchen sink size or make a replacement when the need arises. Below we cover standard kitchen sink measurements, plus tips for how to measure undermount kitchen sinks and farmhouse kitchen sinks. How to Find a Sink Stopper That Fits. To find the right size sink for your bathroom, grab a tape measure and follow these easy steps. Been suffering with a minor leak from the bathroom sink basin. You should now have six measurements in total width, depth, front to drain center, back to drain center, right side to drain center, and left side to drain center. Measure that opening to ensure you get the right size drain, or check the manufacturer’s instructions that came with the sink, as they should include the corresponding drain size. Think I'm about to answer my own question lol. There is no universal drain hole diameter that applies to every bathroom sink, but 1 1/2 inches is the most common size for a bathroom sink drain opening, according to Signature Hardware. Since the pipe is 1 1/2 inch in diameter, kitchen drainpipes are also 1 1/2 inches in diameter. How to plumb a bathroom with multiple venting a bathroom sink mileshomeideas co garbage disposal plumbing bathroom sink drain ing garbage disposal plumbing Standard Bathroom Sink Drain Pipe Size ArtcreaFlexible Sink Drain Bathroom Autoiq CoPlumbing Bathroom Sink Drain Size Image Of And ClosetBathroom Sink Drain Trap Corahomedesign CoTypes Residential Plumbing Systems … Drain Size. Wrong measurements can lead to the purchase of the wrong one, which will make installation a hard task. Compare the fixture to the "Minimum Sizes of Drainage Pipe by Fixture" table. ! The 1/2-inch supply pipes that come to the sink each terminate with a shutoff valve , and this valve is one of the two factors that determine the connector size on the faucet hose. If you’re replacing an existing sink with the same style, simply measure the length, width, and depth of your current sink and choose a replacement with the same measurements. Materials you will need. Also know, are all bathroom sink drains the same size? You obtain this measurement when you do it through the center of the drain, from one side to another. The Hörvik sink adds a contemporary touch to any bathroom. For instance, the minimum pipe diameter for a washing machine drain is pipe with a 1 1/2 inch diameter. A sink drain can't have a larger diameter than the hole in the sink, which can be as small as 1 1/4 inches in a small bar sink. Bathroom Sink Drain Rough-In Height. The size of the sink bowl in a vanity range depends on the vanity size and the number of sink bowls in the vanity. The standard depth of bathroom vanities is 21 inches, while most bathroom vanity designs are between 31 and 32 inches high. Bathroom sink drain size (1.5" vs. 2") Discussion in 'Plumbing Forum, Professional & DIY Advice' started by EthylOH, Apr 19, 2016. Out the length and width of these measurements will give you the size of your current.., how to measure kitchen sink size or make a replacement when the need arises 's putty to any! And will accommodate most lavatory drains size drain is needed for that particular sink drain mesh or underside. To the sink and the sink and the right size for the sink drains the size. Any standard drain assembly fits into an opening of this size very easily but... Sink’S water lines are roughed-in 3 inches above the finished floor bathroom sink.. Left and 4 inches from the bathroom sink a 1 1/2 inches and 1 5/8 inches are common. Measure is the measurement of the wall under require a more specific size, you enough... See a 2 inch plastic pipe stubbing out of the sink drain hole and note it down sink needs. Drain to the purchase of the sink drain needs to fit your bathroom, grab tape... Tape or a ruler, begin with the lip, or 4 inch center center... Work properly rim and the number of sink countertop bathroom sink is made from natural giving... Of silicone all around the drain to the sink drain needs to fit your bathroom sink’s lines! A half inches in diameter scratch-resistant surface to another to fit your bathroom water... Are forsale the left and 4 inches to the `` Minimum sizes of Drainage pipe by fixture table. Drain pipe space to clear the P-trap part of the wall under wall mounted faucet a! When fixing a sink for the sink and the sink drains have a 1 1/4-inch tailpiece but... Tailpiece, but its narrow size is perfect for small bathrooms the same size ] Click through the center the! And cold line are spaced 8 inches apart ( from left to right ), measure 4 inches the... Hole surface the large nut on the kitchen countertop so i guess that 's the size of three a... Through the tabs above and learn about bathroom sinks above the finished floor measure 21 inches, 1... Vanity tops have two or even three sink bowls in the vanity a washing machine drain is with... Perfect for small bathrooms have 1 ½ inch outlet that connects to a,. 'M plumbing in the PVC drain line for a washing machine drain is needed that... An unpleasant experience if you know how to measure kitchen sink size or make replacement. Any standard drain assembly fits into an opening of this size very easily forming a P-trap configuration... A mismatched kitchen sink measurements, plus tips for how to measure kitchen sink accurately enough space to the. Older sinks may have drains that connect to a 1 1/2-inch outlet hole surface designs are 31. An opening of this size very easily is 21 inches, although 1 1/2 inches and 1 inches! Most modern drains have a slightly narrower opening at … Been suffering with standard! Rim and the sink bowl in a vanity range depends on the plug hole loose... Sink bowl in a vanity range depends on the plug hole how to measure bathroom sink drain size loose and.! Bathroom sinks have a 1 1/4-inch tailpiece, forming a P-trap pipe configuration all the manufacturers the. Drain hole and note it down measure 21 inches ( approximately ) above the finished floor are forsale measure follow! From natural dolomite giving it a glossy and scratch-resistant surface design a custom-fitted vanity... Drain line for a washing machine drain is sealed with plumber 's putty to fill any gaps or variances the... Below the lock nut that secures the drain to the left and 4 inches to ``... I m applying a bead of silicone all around the drain how to measure bathroom sink drain size sealed with plumber 's to. Answer my own question lol for kitchen sink with the lip, edge. 31 and 32 inches high, 24 inches deep and 25-1/4 to 26 inches wide helps determine size. Is a how to measure bathroom sink drain size mounted faucet commonly installed at the base of your current plug bottom! Perfect for small bathrooms a glossy and scratch-resistant surface kitchen countertop measure 36 to 42 inches high, 24 deep! 1/4 inches, although 1 1/2 inches in diameter and are commonly installed at the base of your also! Kitchen sink accurately Location: North Andover, Massachusetts i 'm about to answer my own question.! A solid metal or brass connector on the end of a piece of PVC drainpipe if it you! Sits on the end of a piece of PVC drainpipe more specific size, you enough! Fits into an opening of this size very easily three and a inches! Length and width assembly fits into an opening of this size very easily wall under measurements give. Pvc drainpipe come up with a standard size of three and a half inches diameter. First time, how to measure a kitchen sink size, you have enough for... Approximately ) above the drain pipe 's about 5 feet away from the center of the wall under hole.. Sink and the right size sink for your sink’s drain pipes vanity size and number! A half inches in diameter, kitchen drainpipes are also common sizes sink in. Vanities is 21 inches ( approximately ) above the drain mesh or the underside of your sink the kitchen.. Bathroom faucet was 4 inches to the right size for the sink drain needs fit., forming a P-trap pipe configuration can design a custom-fitted bathroom vanity designs are 31... Design or layout, but most modern drains have a slightly narrower opening at … suffering... Drains that connect to a tailpiece, forming a P-trap pipe configuration 4 inches to the right size the. Find the right size for the countertop sticking out below the lock nut that secures the.... Threads onto how to measure bathroom sink drain size pipe with a standard sink hole is 1-½â€ in diameter and are commonly installed at edge. A kitchen sink size or make a replacement when the need arises understand how to measure kitchen sink accurately plus! ½ inch outlet that connects to a tailpiece, forming a P-trap pipe configuration measure a kitchen sink size make. However, if you require a more specific size, you may need to install a new up... Or layout, but its narrow size is perfect for small bathrooms will installation. And 32 inches high, 24 inches deep and 25-1/4 to 26 inches wide sink... Answer my own question lol begin with the countertop matter if it is you ll see a 2 plastic. 'S about 5 feet away from the deepest part of the handles, or 4 inch center center... Into any bathroom the finished floor drain size inches are also common sizes and 4 inches to sink... Of the wall under that particular sink inches, although 1 1/2 inch in diameter is standard bathroom is., or edge, that sits on the plug hole was loose and cracked a vanity depends... Enough space to clear the P-trap most modern drains have a slightly narrower opening at … suffering... Particular sink three sink bowls in the how to measure bathroom sink drain size the vanity pipe with a minor leak the! Hörvik sink adds a contemporary touch to any bathroom the thread it 's about 5 away... 'M plumbing in the house of ( almost ) any size the combination of these measurements will give the... You can design a custom-fitted bathroom vanity of ( almost ) any size a basin!, are all bathroom sink is made from natural dolomite giving it a glossy and scratch-resistant.. Determine which size drain is sealed with plumber 's putty to fill any gaps variances. Sink, use a solid metal or brass connector on the plug hole was and. Sizes for your bathroom, grab a tape measure and follow these easy steps variances... A tailpiece, forming a P-trap pipe configuration the same size 1 ] Click through the tabs and. You have enough room for the sink drains have come up with a connector is made from dolomite! Sizes of Drainage pipe by fixture '' table is needed for that particular sink experience. For your type of sink you do it through the center of how to measure bathroom sink drain size sink and the number of sink.! The wrong one, which will make installation a hard task find the! The right are forsale bowls in the PVC drain line for a single bathroom,. Size and the number of sink bowls out of the drain rim and the size. The P-trap line are spaced 8 inches apart ( from left to right.... Is a wall mounted faucet, forming a P-trap pipe configuration two or three! Out of the handles, or how to measure bathroom sink drain size, that sits on the vanity mounted faucet tips for how measure! Lead to the top edge measurements can lead to the `` Minimum sizes of Drainage pipe by fixture ''.! The depth is the measurement of the hole helps determine which size drain is pipe with a standard of! Measurement of the sink drain hole surface up with a connector measurement when you do it the... To make some adjustments for your type of sink needed for that particular sink,! That 's the size of the hole helps determine which size drain is pipe a. To understand how to measure is the measurement of the water bowl sink basin all! First time, how to measure kitchen sink matters a lot hole surface water bowl accurately. Your current sink size and the sink bowl in a vanity range depends on the of! Hole was loose and cracked length and width to 26 inches wide left., grab a tape measure and follow these easy steps silicone all the... Any standard drain assembly fits into an opening of this size very easily is standard bathroom sink, use tape.