This specification covers aluminum and steel floor gratings other than bar types for shipboard use.

Gratings shall be of the following types and classes, as specified (see 6.2):

    Type I - Steel, heavy
      Class 1 - Galvanized
      Class 2 - Ungalvanized
      Class 3 - Corrosion resistant
    Type II - Aluminum, heavy
    Type III - Steel, light
      Class 1 - Galvanized
      Class 2 - Ungalvanized
      Class 3 - Corrosion resistant
    Type IV - Aluminum, light

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 03R42, 2531 Jefferson Davis Hwy., Arlington, VA 22242-5160 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.