Zip-Up Underdeck® Drainage System Pitch Rail
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns


Zip-Up Underdeck® Drainage System Pitch Rail
Zip-Up Underdeck® Drainage System Pitch Rail
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.
Original: $64.14
-65%$64.14
$22.45Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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.















