Type CK – Angle Frame

MSU CK hatches are designed to be cast into place in interior areas or exterior areas where water or liquid infiltration is not a concern. These hatches are non-watertight choice for areas of pedestrian traffic where additional engineering features are desired. Safety controls are engineered right into all MSU access hatches.

CK access hatches are:


  • All aluminum construction
  • Gasketed angle frame
  • Slip resistant checker plate lid
  • Lifting handle and exposed padlock tab (padlocks by others)
  • Hold-open arm, in type 316 stainless steel, locks lid safely at 90 degrees vertical
  • Continuous stainless-steel hinging system
  • Lifting spring in 316 stainless steel
  • Compartment latch in type 316 stainless steel with sealing plug and opener
  • Reinforced for a live load for 7.2 kPa
  • Cast anchors
  • Bituminous paint on all areas in contact with concrete
  • All fasteners in stainless steel, type 304
  • Welding to CSA W47.2

MSU CK hatches are manufactured in single and double-door units only.

CK Single-Door Unit 900 x 900
CKD Double-Door Unit 1200 x 1200
**Sizes shown are examples only**


  • Insulation with back pan (Styrofoam sm 50 mm standard)
  • Custom signage, lettering and wording
  • Custom finishes: anodizing, painting