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Zip-Up®

SKU: DDZ-Whit0.5Pitch

Zip-Up Underdeck® Drainage System Pitch Rail

Zip-Up Underdeck® Drainage System Pitch Rail

Regular price $61.09 USD
Regular price Sale price $61.09 USD
Save Liquid error (snippets/price line 86): Computation results in '-Infinity'% Call to Order: 1-877-232-3915
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ZipUP UnderDeck® Pitch Rail – Built-In Slope for Effective Drainage

The ZipUP UnderDeck® Pitch Rail is the foundational piece that gives your ceiling system its critical slope. By gradually angling the Main Rails, this component ensures that rainwater flows efficiently away from the deck area and into your designated drainage outlet. Simple to install and essential for performance, Pitch Rails are the hidden heroes of a dry, finished under-deck space.


Key Features

  • Engineered Slope: Creates the downward pitch needed to direct water away from your deck.

  • Structural Support: Installs directly under the Main Rails to raise and level the system.

  • Easy to Use: Lightweight PVC design makes cutting and spacing straightforward.

  • System Essential: Ensures optimal water flow and prevents pooling or leaks.

  • Durable Build: Made from long-lasting, weather-resistant PVC.


Product Specifications

Feature Description
Length 12 feet
Material PVC (Polyvinyl Chloride)
Purpose Creates slope for drainage by supporting Main Rails
Installation Mounted directly to joists beneath Main Rails
Recommended Spacing Install every 3 feet, increasing height gradually
Maintenance No upkeep required post-installation
Color Matches ZipUP® component colors

Installation Notes

  • Pitch Setup: Place Pitch Rails perpendicular to joists and increase each by approximately 1/8 inch in height every 3 feet.

  • Combine With: Required for proper installation of Main Rails and optimal drainage.

  • Pro Tip: Pre-mark joist locations to speed up consistent spacing and slope alignment.


The ZipUP UnderDeck® Pitch Rail is the key to transforming your under-deck area into a dry, usable space. It lays the groundwork—literally—for a successful, long-lasting ceiling system.

Shipping Information

Please call 1.877.232.3915, e-mail or message us online. We will call you to verify your order and to make payment arrangements. We also have several other trucking companies that work with us at a 72% discount which we pass onto you. Orders can be shipped direct to your home or jobsite.  We can also hold orders at your local freight terminal for customer pickup. Small orders are shipped via UPS. We also ship to European and other foreign countries on container load basis. We ship anywhere in the world...please phone or email if you have shipping questions.
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