For CAD dwg and PDF files, scroll down to pattern links in 2 specification tables below.

Pattern       Number/CAD Link Dimensions in Inches Aluminum A x A1 B x B1 C CHD-8AL 30 x 60 38 1/2 x 68 1/2 78 9/16 CHD-9AL 36 x 60 44 1/2 x 68 1/2 81 11/16 CHD-10AL 36 x 72 44 1/2 x 80 1/2 92 CHD-11AL 48 x 72 56 1/2 x 80 1/2 98 3/8

Pattern       Number/CAD Link Dimensions in Inches Aluminum A x A1 B x B1 C CHD-12AL 48 x 48 56 1/2 x 56 1/2 79 7/8 CHD-13AL 60 x 60 68 1/2 x 68 1/2 96 7/8

More Information

• H-20 Heavy Duty Aluminum Hatches (PDF)
• Top Mount Style Aluminum Safety Grate System (PDF)
• Pneu-Spring Technology (PDF)
• Top Mount Replacement/Retrofit Hatches (PDF)

Complete list of hatches

• View Images of all Hatch Models »

• Pedestrian Rated 300 PSF, Channel Frame, Weather Tight Access Hatch
  • Model DT-AOSG, Safety Grate »
  • Model DTD-AOSG, Safety Grate (double leaf) »
  • Model CH »
  • Model CHD (double leaf) »
  • Model LDT »
  • Model LDTD (double leaf) »

• Pedestrian Rated 300 PSF, Angle Frame, Non Weather Tight Access Hatch
  • Model LEC-AOSG, Safety Grate »
  • Model LECD-AOSG, Safety Grate (double leaf) »
  • Model LEC »
  • Model LECD (double leaf) »

• Heavy Duty H-20, Channel Frame, Weather Tight Access Hatch
  • Model DT-HD-AOSG, Safety Grate »
  • Model DTD-HD-AOSG, Safety Grate (double leaf) »
  • Model DT-HD »
  • Model DTD-HD (double leaf) »

• Heavy Duty H-20, Angle Frame, Non Weather Tight Access Hatch
  • Model EC-HD-AOSG, Safety Grate »
  • Model ECD-HD-AOSG, Safety Grate (double leaf) »
  • Model EC-HD »
  • Model ECD-HD (double leaf) »

• Hatch Options »