Measure for a New Sink and Faucet — Plan and Mark Pipe Locations
Part of project
How to Rough-In Plumbing for a Bathroom Vanity · Step 1 of 5
In this video
Begin by identifying the type of faucet on your current sink. Use a tape measure to check the distance between the center of the hot and cold handle holes. A '4-inch spread' faucet, also called a centerset, has 4 inches between these points. An '8-inch spread' or widespread faucet has 8 inches between them. This measurement is crucial for selecting a compatible new faucet and sink. Next, measure the overall dimensions of the existing sink. Measure the depth from the back wall to the front edge; the sink in the video measures 23 inches. Also, measure the height from the floor to the top of the sink basin; the example is 32 inches. Note these measurements to find a replacement that fits the space and aligns with the existing plumbing rough-ins as closely as possible.
Goal: Determine the correct dimensions for a replacement sink and faucet
- A 4-inch spread faucet measures 4 inches from the center of the far-left hole to the center of the far-right hole.
- An 8-inch spread faucet will have three separate holes, with the outer holes being 8 inches apart on center.
- Ensure you purchase the correct faucet type (4-inch or 8-inch spread) to match the pre-drilled holes in your new sink or vanity top.
Used in this video
- Measuring Tape (brand: Stanley, Size/Dimension: 16-foot, Tool Type: Measuring Tools) — Measuring the faucet spread, sink depth, and sink height.
729K subscribers
FAQs
As an "intermediate" project, how challenging is roughing in plumbing for someone with limited prior plumbing experience?
While intermediate, this project requires precision for proper drain slope, watertight PEX connections, and adherence to plumbing codes. Take your time, double-check all measurements and connections, and be prepared to consult diagrams and local regulations. Mistakes in plumbing can be very costly to fix later.
Do I need all the specialized tools listed, like the PEX crimp tool and specific tubing cutters, or are there more budget-friendly alternatives?
Specialized PEX tools are highly recommended for reliable, leak-free connections that meet code. While some PEX systems offer push-to-connect fittings, traditional crimping or expansion tools provide a more robust rough-in. Renting expensive tools like PEX crimpers can be a cost-effective alternative for a one-time project.
Is it always necessary to get a permit and have an inspection for new plumbing rough-in work like this bathroom vanity?
Yes, new plumbing installations almost always require permits and inspections to ensure safety and compliance with local building codes. Failing to obtain permits can lead to costly rework, fines, or issues when selling your home. Always check with your local building department before starting any plumbing work.
What are the most common mistakes DIYers make during a plumbing rough-in, and how can I avoid them, especially regarding leaks?
Common mistakes include improper drain slope leading to clogs, poorly sealed DWV joints, and incorrect PEX connections causing leaks. To avoid these, ensure all PVC joints are dry-fitted and then properly cemented, and that PEX connections are correctly crimped/expanded and burr-free. Always pressure-test the system thoroughly before closing the wall.
Measure for a New Sink and Faucet — Plan and Mark Pipe Locations
Part of project
How to Rough-In Plumbing for a Bathroom Vanity · Step 1 of 5
In this video
Begin by identifying the type of faucet on your current sink. Use a tape measure to check the distance between the center of the hot and cold handle holes. A '4-inch spread' faucet, also called a centerset, has 4 inches between these points. An '8-inch spread' or widespread faucet has 8 inches between them. This measurement is crucial for selecting a compatible new faucet and sink. Next, measure the overall dimensions of the existing sink. Measure the depth from the back wall to the front edge; the sink in the video measures 23 inches. Also, measure the height from the floor to the top of the sink basin; the example is 32 inches. Note these measurements to find a replacement that fits the space and aligns with the existing plumbing rough-ins as closely as possible.
Goal: Determine the correct dimensions for a replacement sink and faucet
- A 4-inch spread faucet measures 4 inches from the center of the far-left hole to the center of the far-right hole.
- An 8-inch spread faucet will have three separate holes, with the outer holes being 8 inches apart on center.
- Ensure you purchase the correct faucet type (4-inch or 8-inch spread) to match the pre-drilled holes in your new sink or vanity top.
Used in this video
- Measuring Tape (brand: Stanley, Size/Dimension: 16-foot, Tool Type: Measuring Tools) — Measuring the faucet spread, sink depth, and sink height.
Frequently Asked Questions
As an "intermediate" project, how challenging is roughing in plumbing for someone with limited prior plumbing experience?
While intermediate, this project requires precision for proper drain slope, watertight PEX connections, and adherence to plumbing codes. Take your time, double-check all measurements and connections, and be prepared to consult diagrams and local regulations. Mistakes in plumbing can be very costly to fix later.
Do I need all the specialized tools listed, like the PEX crimp tool and specific tubing cutters, or are there more budget-friendly alternatives?
Specialized PEX tools are highly recommended for reliable, leak-free connections that meet code. While some PEX systems offer push-to-connect fittings, traditional crimping or expansion tools provide a more robust rough-in. Renting expensive tools like PEX crimpers can be a cost-effective alternative for a one-time project.
Is it always necessary to get a permit and have an inspection for new plumbing rough-in work like this bathroom vanity?
Yes, new plumbing installations almost always require permits and inspections to ensure safety and compliance with local building codes. Failing to obtain permits can lead to costly rework, fines, or issues when selling your home. Always check with your local building department before starting any plumbing work.
What are the most common mistakes DIYers make during a plumbing rough-in, and how can I avoid them, especially regarding leaks?
Common mistakes include improper drain slope leading to clogs, poorly sealed DWV joints, and incorrect PEX connections causing leaks. To avoid these, ensure all PVC joints are dry-fitted and then properly cemented, and that PEX connections are correctly crimped/expanded and burr-free. Always pressure-test the system thoroughly before closing the wall.