Home Building And Repairs

Drilling Through King Stud Framing for Plumbing Waste Pipes


This dives into a crucial aspect of plumbing installation to avoid drilling through king studs. King studs are vertical boards that provide structural support in framed walls, and drilling holes through them can compromise the integrity of the entire structure. The information is presented in the context of a plumbing scenario, but the principle applies to any situation where preserving the structural integrity of king studs is important.

Why Drilling Through King Studs is a Cardinal Sin

King studs bear significant weight, and drilling holes weakens them, potentially leading to structural issues. This rule is generally enforced in California and is increasingly becoming common practice across different regions.

The video acknowledges that building codes might vary by state, but emphasizes the importance of preserving king studs regardless of local regulations.

Alternative Plumbing Installation Around King Studs

The video offers a solution for plumbing installation when encountering a king stud. Instead of drilling through the king stud, the plumber should reroute the drain pipe.

The recommended approach is to move the drain pipe two bays over to the left side of the king stud (referring to the picture in the video). In simpler terms, the pipe should be on the stud adjacent to the window on the left side of the image.

Once the drain pipe is on the correct stud, it can be run horizontally for about two and a half feet to pick up the drain. This method is considered standard practice and ensures that the structural integrity of the king stud remains intact.

Bonus Tips for Rough Plumbing Installation

Planning is Key: As with any construction project, thorough planning is essential for rough plumbing. Before starting, ensure you have a clear understanding of the plumbing layout, including the location of fixtures, drains, and vents.

Proper Measurements: Accurate measurements are crucial for rough plumbing. Measure the distance between fixtures, the location of drains and vents, and the slope required for drainage pipes.

Material Selection: Choose the right materials for the job. Use pipes and fittings that are appropriate for the type of plumbing being installed (e.g., drain, waste, vent).

Cutting and Joining Pipes: Ensure you cut pipes to the correct length and use appropriate techniques to join them securely. Leaks in plumbing systems can cause significant damage.

Support Pipes Properly: Pipes should be well-supported throughout their run. Use straps or hangers to secure pipes at regular intervals to prevent sagging or movement.

Final Inspection: Before closing up the walls and ceilings, have a qualified plumber inspect your rough plumbing installation to identify and rectify any potential issues.

By following these tips and avoiding the cardinal sin of drilling through king studs, you can ensure a smooth and successful rough plumbing installation. Remember, consulting with a licensed plumber is always recommended for complex plumbing projects.

Back To Plumbing

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