(206) 767-3000 Hours: Monday-Friday 8:30am to 5:30pm, Saturday By Appointment 

NW Grating has been providing contractors with pre-engineered Detention Vault Grates for over 15 years.


Because of our experience we can offer expert advice and prompt turnaround with grates built to your custom dimensions.


A full spectrum of load ratings is available from pedestrian loading to 45,000 lb Fire Truck Loading.

Our designs have been pre-approved, stamped by our Professional Engineer.


We provide shop drawings for your approval prior to fabrication.


Quotes readily provided on request.


  • Custom built to your requirements
  • Pre-engineered by our Professional Engineer
  • Locally built with local knowledge of a variety of applications
  • Fabricated by our Northwest crew giving you control of specifications
  • We offer gratings with:
    - Hinged access panels
    - Lock enclosures
    - ADA (American Disabilities Act) Compliance
    ‚Äč- A variety of fastening techniques to suit your site requirements


A NW Grating Specialty

Detention Vault Grating Covers