For CAD dwg and PDF files, scroll down to pattern links in specifications table below.

Specifications for Angle Frame Heavy Duty Aluminum Hatch with Safety Grate System
Pattern	Unobstructed
Number/CAD Link	Clear Opening	Dimensions in Inches		Height	Diagonal
Aluminum	O x O1	A x A1	B x B1	C	D
EC-1HDAOSG	24 x 24	24 x 27	35 x 30	4	46 1/8
EC-2HDAOSG	24 x 30	24 x 33	35 x 36	4	50 3/16
EC-3HDAOSG	24 x 36	24 x 39	35 x 42	4	54 11/16
EC-4HDAOSG	30 x 30	30 x 33	41 x 36	4	54 9/16
EC-5HDAOSG	30 x 36	30 x 39	41 x 42	4	58 11/16
EC-6HDAOSG	30 x 48	32 x 51	43 x 54	5 1/2	69
EC-7HDAOSG	36 x 36	38 x 39	49 x 42	5 1/2	64 9/16
EC-8HDAOSG	36 x 48	38 x 51	49 x 54	5 1/2	72 15/16
EC-9HDAOSG	42 x 42	44 x 45	55 x 48	5 1/2	73

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 »