Plastic Square Drainage Grates

A rugged square grate designed to be used in conjunction with a catch basin, this grate is manufactured from a structurally foamed High Density Polyethylene (HDPE) with a UV inhibitor to reduce sun damage. It has large opening slots for maximum flow while still preventing large debris from entering the drainage system. Typical application would be areas where floating debris would block a flat grate. For safety reasons, and to prevent vandalism or theft, the grate has two holes enabling it to be screwed onto the basin.

Features

Manufactured from structurally foamed High-Density Polyethylene (HDPE)  
UV stabilized to protect from sun degradation  
Flat and atrium (domed) profiles, available in two colors, green and black  
Each grate has three stepped diameters to fit Sewer and Drain (S & D) Pipe and Fittings, Triple Wall Pipe and Corrugated Pipe  
Textured anti-skid surface  
Load rated for autos and light trucks at speeds less than 20 mph  
ADA compliant

Specs

9" Square Flat
Color: Green or Black  
Fits: 9" Square Catch Basin (DB9S2)  
Open Slot Width: 3/8"  
Open Surface Area: 38 sq in  
Maximum Flow Rating: 50 GPM  
Maximum load: 2,000 lbs
12" Square Flat
Color: Green or Black  
Fits: 12" Square Catch Basins (DB12S2 & DB12S4); 12" Low-Profile Basin (DB12SLP)  
Open Slot Width: 7/16"  
Open Surface Area: 53 sq in  
Maximum Flow Rating: 70 GPM  
Maximum load: 3,000 lbs
18" Square Flat
Color: Green or Black  
Fits: 18" Square Catch Basins (DB18S2 & DB18S4)  
Open Slot Width: 15/32"  
Open Surface Area: 92 sq in  
Maximum Flow Rating: 120 GPM  
Maximum load: 4,000 lbs
12" Square Atrium
Color: Green or Black    
Fits: 12" Square Catch Basins (DB12S2 & DB12S4); 12" Low-Profile Basin (DB12SLP)  
Open Slot Width: 7/16"  
Open Surface Area: 50 sq in  
Maximum Flow Rating: 65 GPM

Model Comparison

  • DG9SFG: 9" Square Flat Grate, Green    
  • DG9SFB:  9" Square Flat Grate, Black  
  • DG12SFG: 12” Square Flat Grate,Green  
  • DG12SFB: 12" Square Flat grate, Black  
  • DG12SAG: 12" Square Atrium  
  • DG18SFG: 18” Square Flat Grate, Green  
  • DG18SFB: 18” Square Flat Grate, Black
  • Related Documents