PEX Plumbing Layout

PEX (cross-linked polyethylene) plumbing systems are a go-to choice for modern construction thanks to their flexibility, durability, and easy installation. Whether you're outfitting a new build or retrofitting an older home, this layout simplifies how you organize and visualize supply lines, trunk lines, and fixture connections.

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Why ArcSite Is Ideal for PEX Plumbing Layouts

ArcSite allows plumbing professionals to draft, revise, and share installation-ready drawings directly from site or office. It’s ideal for teams that need precise documentation, fast revisions, and the ability to generate estimates or takeoffs directly from drawings.

Why PEX Plumbing Layouts Are So Useful

Running plumbing is more than just connecting pipes—it’s about designing a clean, accessible system that ensures water flow and pressure are consistent across all fixtures. This layout helps contractors and designers pre-visualize water routing and shutoff control, reducing errors and delays on-site.

Common Pain Points in Plumbing Design:

  • Misrouted supply lines
  • Inconsistent pipe sizing
  • Poor fixture access
  • Limited visibility for future maintenance

How This Drawing Helps:

  • Highlights trunk and branch line sizing
  • Shows cold and hot water routing clearly
  • Identifies fixture drops with accurate scale
  • Makes it easier to explain plumbing strategy to homeowners or inspectors

Overview

Features of ArcSite’s PEX Plumbing Layout Drawing

This drawing provides a clear vertical section view of a residential PEX plumbing system, including:

  • 3/4” Trunk Lines: The main supply lines that run hot and cold water across the home
  • 1/2” Branch Lines: Lines that split off to individual areas (bathroom, kitchen, laundry)
  • 3/8” Tubes: Final drops to individual fixtures like sinks and toilets
  • Shut Off Valves: Labeled for easy access and emergency use
  • Hot Water Routing: Clearly distinguished from cold water lines using color-coding
  • Water Heater and Inlet Placement: Proper integration into the overall layout
  • Laundry and Utility Sink Drops: Ensures the basement or laundry area is fully covered

Use this layout to guide installations or kickstart takeoff calculations.

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FAQs

Can I change the line sizes in this layout?

Yes, ArcSite makes it easy to modify pipe sizes, locations, and fixture drops to suit your exact project needs.

Is ArcSite good for MEP contractors?

Definitely. ArcSite supports mechanical, electrical, and plumbing drawings and is widely used by contractors for both design and quoting.

Does ArcSite support takeoffs from plumbing drawings?

Yes. You can generate takeoffs directly from your plumbing layouts for accurate pricing and material tracking.