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 LDTD-10 30 x 48 36 x 54 64 7/8 LDTD-11 30 x 54 36 x 60 70 LDTD-12 36 x 48 42 x 54 68 7/16 LDTD-13 36 x 60 42 x 66 78 1/4 LDTD-14 42 x 48 48 x 54 72 1/4 LDTD-16 48 x 54 54 x 60 80 3/4 LDTD-17 48 x 72 54 x 78 94 7/8

Pattern       Number/CAD Link Dimensions in Inches Aluminum A x A1 B x B1 C LDTD-15 48 x 48 54 x 54 76 3/8 LDTD-18 60 x 60 66 x 66 93 5/16

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 »