Zip-Trench Polypropylene Trench Drains

The Zip-Trench is a polypropylene trench drain available in 6” or 12” widths. The Zip-Trench offers a less expensive, labor saving alternative to cast-in-place trench drains.

Easy Installation

The 9’10" length of the channels and built-in rebar anchors make installation fast and simple. Grates are not required during the pour and alignment clips keep your installation straight.

Extra Heavy Duty

Zip-Trench has four grate choices with Class C and E load rating options. The polypropylene material is break-resistant, impermeable, and offers more chemical resistance than polyethylene used by competitors. It can also handle temperatures up to 180 degrees F.

Flexible System

With 16 channels (12 sloping and 4 neutral) from a depth of 7-9/16“ to 22-9/16”, Zip-Trench allows for unparalleled flexibility with channels that can be run as long as needed.

Less Maintenance

Zip-Trench’s deep rounded base keeps water moving at optimal efficiency. The faster movement of water keeps debris moving and reduces the frequency of servicing.

Traditional Cast-in-Place Trench vs.  Zip-Trench


  • Labor Intensive
  • Inexpensive Materials
  • Uses permeable concrete
  • Requires complicated wood framework

6” or 12” Zip-Trench

  • 75% Less Labor*
  • Overall, 25% savings*
  • Polypropylene is 100% impermeable
  • Easy installation with male/female lap joints for speed
* Based on the costs associated with installing a 100ft section of Cast-in-Place Trench Drain compared to the same length using Smith 9960 Zip-Trench. Cast-in-Place installation requires 48hrs of labor compared to 11.5hrs when installing a Zip-Trench Drain.

Still want to use Cast-in-Place?

That’s ok. Zip-Trench frames and grates are compatible with Cast-in-Place installations.

Figure Number 9960-LC, Zip Trench Frame and Grate

Application Examples

  • Stadium

  • Bottling Plant

    Bottling Plant or Facility
  • Gas Station

    Gas Station

Zip-Trench Resources

12” Zip-Trench Grates

Heavy Duty
DIN 19580 Load Class C: 56,000 lbs - 1,162 psi. For commercial pneumatic tire traffic patterns, forklifts and tractor trailers.
Stainless_Steel_Mesh_Grate_9960 Stainless Steel Mesh Grate Lengths: 1 meter, ½ meter
Also available as Perforated.
Galv._Steel_Grate_-_9960 Perforated Galv. Steel Grate Lengths: 1 meter, ½ meter
Also available as Mesh.
Extra Heavy Duty
DIN 19580 Class E: 135,000 lbs - 2,788 psi. For commercial solid tire traffic patterns, forklifts and impacts from steel struts or metal wheels.
Ductile_iron_ADA_slotted_grate_9960 Ductile Iron ADA Grate Length: ½ meter
Ductile Iron Slotted Grate Length: ½ meter

Looking for 6” Zip-Trench™ Grates?

Our 6” Zip-Trench is available with a variety of Light, Heavy, and Extra Heavy Duty grates. View the product page to explore 6” grate options.

Zip-Trench Accessories