Install Wood Blocking — Install Blocking and Mark Valve Position
Part of project
How to Rough-In a Shower Valve: A Step-by-Step DIY Guide · Step 2 of 4
In this video
Determine the final placement of the mixing valve and shower head. A typical height for the valve is 12-15 inches above the tub spout. The tub spout is usually 3-4 inches above the tub deck. A standard shower head height is 78 inches from the shower floor. Measure and mark these locations on the wall studs. Cut and install 2x4 or 2x6 wood blocking between the studs at these marked locations. The blocking provides a solid surface to mount the valve and the drop ear elbow. Ensure the blocking is set at the proper depth to accommodate the backerboard and tile.
Goal: Build Deck Frame
- For added stability, use a larger piece of plywood or OSB as blocking behind the valve.
Used in this video
- Tape Measure (Tool Type: Measuring Tools) — Measuring the placement for the valve and blocking.
- Impact Driver (brand: Milwaukee, Tool Type: Power Tools) — Driving screws to secure the wood blocking.
671K subscribers
FAQs
How difficult is roughing-in a shower valve for a beginner, and what's the typical time commitment?
While rated "beginner," this project requires careful attention to detail, especially with water connections and leak prevention. For a beginner, expect it to take a full afternoon or even a day, accounting for preparation, learning, and thorough leak testing. Rushing can lead to costly mistakes.
What are the most important safety precautions to take during this plumbing project, especially regarding water and tools like a torch?
Always shut off the main water supply to the house before starting to prevent flooding and water damage. When using a Bernzomatic Pen Torch for soldering, ensure you have proper ventilation, a fire extinguisher nearby, and wear appropriate safety glasses and gloves to prevent burns. Always double-check electrical safety if working near any electrical outlets.
How do I ensure the shower valve is installed at the correct height and depth for comfortable use and the finished wall?
Always follow the shower valve manufacturer's instructions for rough-in dimensions, especially for the recommended height of the valve. Use a level to ensure the blocking and valve are perfectly plumb and level. Remember to account for the thickness of your finished wall material (e.g., tile and backer board) when setting the valve depth to ensure the trim fits flush and the handle isn't too recessed or protruding.
What steps should I take immediately if I discover a leak during the final water pressure test?
If you find a leak, immediately turn off the main water supply to the house again. Identify the exact source of the leak; it's often a poorly soldered joint or a loose threaded fitting. If it's a solder joint, drain the pipes, thoroughly clean and flux the area, and re-solder. If it's a fitting, tighten it appropriately, being careful not to overtighten.
Install Wood Blocking — Install Blocking and Mark Valve Position
Part of project
How to Rough-In a Shower Valve: A Step-by-Step DIY Guide · Step 2 of 4
In this video
Determine the final placement of the mixing valve and shower head. A typical height for the valve is 12-15 inches above the tub spout. The tub spout is usually 3-4 inches above the tub deck. A standard shower head height is 78 inches from the shower floor. Measure and mark these locations on the wall studs. Cut and install 2x4 or 2x6 wood blocking between the studs at these marked locations. The blocking provides a solid surface to mount the valve and the drop ear elbow. Ensure the blocking is set at the proper depth to accommodate the backerboard and tile.
Goal: Build Deck Frame
- For added stability, use a larger piece of plywood or OSB as blocking behind the valve.
Used in this video
- Tape Measure (Tool Type: Measuring Tools) — Measuring the placement for the valve and blocking.
- Impact Driver (brand: Milwaukee, Tool Type: Power Tools) — Driving screws to secure the wood blocking.
Frequently Asked Questions
How difficult is roughing-in a shower valve for a beginner, and what's the typical time commitment?
While rated "beginner," this project requires careful attention to detail, especially with water connections and leak prevention. For a beginner, expect it to take a full afternoon or even a day, accounting for preparation, learning, and thorough leak testing. Rushing can lead to costly mistakes.
What are the most important safety precautions to take during this plumbing project, especially regarding water and tools like a torch?
Always shut off the main water supply to the house before starting to prevent flooding and water damage. When using a Bernzomatic Pen Torch for soldering, ensure you have proper ventilation, a fire extinguisher nearby, and wear appropriate safety glasses and gloves to prevent burns. Always double-check electrical safety if working near any electrical outlets.
How do I ensure the shower valve is installed at the correct height and depth for comfortable use and the finished wall?
Always follow the shower valve manufacturer's instructions for rough-in dimensions, especially for the recommended height of the valve. Use a level to ensure the blocking and valve are perfectly plumb and level. Remember to account for the thickness of your finished wall material (e.g., tile and backer board) when setting the valve depth to ensure the trim fits flush and the handle isn't too recessed or protruding.
What steps should I take immediately if I discover a leak during the final water pressure test?
If you find a leak, immediately turn off the main water supply to the house again. Identify the exact source of the leak; it's often a poorly soldered joint or a loose threaded fitting. If it's a solder joint, drain the pipes, thoroughly clean and flux the area, and re-solder. If it's a fitting, tighten it appropriately, being careful not to overtighten.