What Is Kitchen Sink Drain Rough In Height?

You will find a number of sinks in the market and they can be installed in different ways. Kitchen sink drain rough in height is an important matter that must be taken into consideration while installing a new sink or relocating an existing one. In this article, we are going to answer common questions related to kitchen sink drain rough in height such as “what is the proper rough-in height for sink drain?”, “How high should a new kitchen’s sink drain come up from the countertop?” and many more.

 kitchen sink drain rough in height
Table of Contents

    How To Build A Kitchen Sink?

    Your kitchen sink installation project must include 3 parts:

    • Determine where to position the kitchen sink and cut a sink opening.
    • Install the water supply and the sink faucet.
    • Rough in the kitchen sink drain and connect with the strainer.

    One thing vital to do before building the kitchen sink is to choose the right sink for your kitchen. There are various types of kits for building a kitchen plan. The most popular ones include the Undermount kit, Drop-In kit, Top mount kit. One must choose the right kit for building a kitchen sink. Undermount kit will give you a luxurious look whereas the top mount kit is easy to clean. 

    Both of bathroom and kitchen sink is connected to the home water supply and main drain. Some parts of the kitchen sink are different from bathroom sink, like the strainer, the stopper, and the garbage disposal. In addition, you should know that the proper kitchen sink drain rough in height is just as important as the bathroom plumbing sink rough in height.  

    What Is The Proper Kitchen Sink Drain Rough In Height?

    The rough-in height for the kitchen sink drain varies from 20 to 24 inches. Determining the exact kitchen sink drain height will depend on the counter height, the sink depth, and the trap. You need to leave enough space for the P-trap to ensure proper drainage. If not, it will lead to the result that the P-trap is completely attached to the bottom of the counter. This will make it hard to remove when needing replacement or repair. Therefore, you should choose the height of the kitchen counter first. And then choose the types and depth of the kitchen sink. For example, you select a standard 36-inches high counter and a 7-inches deep sink, the drain would have 29 inches from the floor.

    How To Plumb Your Kitchen Sink Drain Like A Pro?

    If you are going to install a new drain assembly in your existing sink, make sure it has three parts- tailpiece, coupling nuts, and trap adapter. First remove old components with a wrench, wipe all areas surrounding the drain hole with a towel and take measurements. Adjust the wall plate so it is perfectly level and mark screw holes on the countertop. Drill pilot holes for screws, install the wall plate, and secure it properly using screws provided by the manufacturer. Then attach tailpiece to coupling nuts at both ends securely. Next attach the trap adapter to the tailpiece, align it with an opening in the countertop and turn away from the sink until tight against the bottom of the countertop

    Using a wrench tighten all parts together carefully, wipe areas around the drain hole again and pour enough water for testing purposes. If there are leaks check again whether everything is assembled correctly or not before pouring more water.

    What Size Should Drain Pipe Be?

    Although there are still 1 1/4 inches pipes in use, wider drain pipes would be preferred. Now the 1 1/2 inches pipes are common in the kitchen drain. Also, you can choose the 2 inches in diameter since the wider pipes can allow faster water. flow But if you are unable to find it in this size, buy a larger one and use reducer bushing. Remember while buying the piping, make sure it is made of stainless steel. Use new plumbing tape on joints for a watertight seal. 

    Should Sink Drain Be Centered?

    A sink drain should be installed with the help of insulation pipe pads so that it is positioned towards the center of your sink cabinet. This will leave enough room for the sideways movement of large dishes inside your sink. It also makes cleaning easier by allowing you to get into corners easily.

    How To Rough In Sink Drain?

    Roughing in the kitchen sink drain basically means connecting it to the main drainage system using a P-Trap, drainage elbow, insulation pipe pads, and other necessary fixtures. Turn off the water supply to your sink, clean the surfaces where new components will be installed, position insulation pads around the drain opening, and secure it properly using screws provided by the manufacturer. Next install a trap adapter to the tailpiece, align it with an opening in countertop, and turn away from the sink until tight against the bottom of the countertop.

    Using a wrench tighten all parts together carefully, wipe areas around the drain hole again and pour enough water for testing purposes. If there are leaks check again whether everything is assembled correctly or not before pouring more water.

    So now you have built your kitchen sink. It can be easily plumbed because it has a standard height ranging from 20 to 24 inches which is good for the proper drainage system. Once you have installed your drain you will notice a significant decrease in water clogging at the kitchen sink.

    Conclusion

    To build a kitchen sink one needs to follow the instructions mentioned above. One should be careful while choosing components for building a kitchen sink. One can choose from either an under-mount kit or a top hang kit depending on their need and personal choice. The proper kitchen sink drain rough in height is 20 to 24 inches. This will provide a better drainage system and easy movement within the cabinet hosting the sink.

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