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Now that you’ve picked out a stunning farmhouse sink, follow these steps for a seamless installation. Due to its exposed apron front, these require a slightly different installation from traditional sinks—but the final look makes it all worth the extra effort. Keep scrolling for answers to your most frequently asked questions about farmhouse sinks.
Before you get started, look over all instructions and be sure to observe all local plumbing and building codes. To avoid personal injury, use assistance when lifting the sink. We recommend consulting a professional if you are unfamiliar with installing kitchen fixtures and plumbing.
Note: Due to the manufacturing process, each sink will vary slightly dimensionally. Make any adjustments to the following instructions as necessary
Tools and Materials
Safety Glasses
Framing Square
Tape Measure
Wood Shims
Hacksaw
Drill
Support Frames
Pencil
Level
General Purpose Silicone Sealant (for stone, marble and granite)
Neutral Cure Silicone Sealant (for copper)
When installing a sink, you have a few mounting options, though for sinks of this type, we recommend an undermount sink installation. Flush-mount and built-up installation are not ideal for farmhouse sink installation.
Before you begin, make sure there is adequate room for your faucet and backsplash installations.
Farmhouse sinks may require custom cabinetry. For assistance, we recommend consulting an experienced cabinet maker. Providing the cabinet maker with the actual sink that will be installed will certify a custom fit.
Ensure that your cabinet allows clearance for the water supply lines, drains, and garbage disposal underneath the sink.
Build a support frame or install support bars from front to back, along the inner sides of the cabinet. The frame must support the weight of the sink and all attachments.
The support frame should be positioned so that when installed, the sink is in line and level with the top of the cabinet.
Because each sink will vary dimensionally, no template is provided. Center the sink on the countertop and trace the outline with a pencil to use as a guide for the cutout. Remember to allow clearance for any faucets and/or backsplashes. Cut the countertop accordingly.
Test fit the sink in the opening that was created in the previous steps. The entire weight of the sink should be supported by the support frame. Verify that the sink is in line and level with the top of the cabinet. Use wood shims, if needed, to level the sink.
Set the sink in place and fill in any gaps below the sink front, and between the sink and countertop, with silicone sealant. Hold the sink in place to secure. Place the countertop onto the sink and remove any excess sealant from all surfaces.
Allow the silicone to dry for at least 24 hours before installing your drain, faucet, and other accessories.
A farmhouse sink can overhang as little as you’d like, with a 1/2" overhang offering a sleeker, modern look while 2" of overhang ensure that authentic farmhouse charm. Anything more than 2" will likely stick out too far and get in your way.
The countertop will not be flush with your farmhouse sink with the recommended undermount installation, as it will sit underneath your countertop. If you opt for a flush-mount installation, only then would your farmhouse sink be flush with the countertop.
An undermount installation for farmhouse sinks is highly recommended, but not always required. Always check your specific sink’s manufacturer’s guide to see if flush-mount or built-up installations are possible with your farmhouse sink.
It’s likely not possible for a farmhouse sink to be put in a regular base, as they often need to be reworked with an additional support structure to withstand the weight of a sink of this type.
This completely depends on your preference and intended uses for the sink, with sizes ranging anywhere from 20" to over 50" in length (from side to side) in both single- and double-bowl designs.
Caulking around the front of a farmhouse sink is not necessary, as any leaks when running water reveal that you need to tighten the sink’s connections. If desired, you may apply a bead of silicone caulk along the rim of your farmhouse sink for a more finished look.