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WALKING – WORKING SURFACES

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					WALKING – WORKING
    SURFACES
     29 CFR 1910
      Subpart D
        1910.21 DEFINITIONS
   FLOOR HOLE – an opening measuring less
    than 12 inches but more than 1 inch in its
    least dimensions

   FLOOR OPENING – an opening measuring
    12 inches or more in its least dimension
    i.e. stair opening, hatchway, manhole
         1910.21 DEFINITIONS

   HANDRAIL – a single bar or pipe
    supported on brackets from a wall to
    furnish persons with a handhold

   WALL HOLE – an opening less than 30
    inches but more than 1 inch high, of
    unrestricted width
1910.22 GENERAL REQUIREMENTS
(a) Housekeeping
  (1) All places of employment,
  passageways, storerooms, and service
  rooms shall be kept clean and orderly and
  in a sanitary condition
  (2) The floor of every workroom shall be
  maintained in a clean and dry condition.
  When wet processes are used, drainage
  shall be maintained.
1910.22 GENERAL REQUIREMENTS
(b) Aisles and Passageways
  (1) Where mechanical handling equipment
  (fork trucks) is used, sufficient safe
  clearances shall be allowed for aisles.
  (2) Permanent aisles and passageways
  shall be appropriately marked.

* ANSI Z 53.1 Aisle Markings
* 1910.176 PIT
 1910.22 GENERAL REQUIREMENTS
(d) Floor Loading
  Protection
  (1) Overhead storage
  areas, mezzanines, etc.
  need posted sign
  identifying the maximum
  weight per square foot
  of the space.
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(a) Protection for
  Floor Openings
  (1) Every stairway
  floor opening shall
  be guarded by a
  standard railing,
  provided on all
  exposed sides
  (except at entrance
  to stairway).
  1910.23 GUARDING FLOOR/WALL
       OPENINGS AND HOLES
(a)(2) Every ladder, floor
  opening or platform shall
  be guarded by a standard
  railing with standard toe
  board on all exposed
  sides (except at entrance
  to opening).
  * Industry – 4 ft *
  Construction – 6 ft
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(a)(3) Every hatchway and chute floor
  opening shall be guarded by one of the
  following:
      (i) Hinged Floor Opening Cover
      (ii) Removable Railing & Toe Board
(4) Every skylight floor opening and hole
  shall be guarded by a standard skylight
  screen or fixed standard railing on all
  exposed sides
1910.23 GUARDING FLOOR/WALL
     OPENINGS AND HOLES
           (5) Every pit and trapdoor
             shall be guarded by a
             floor opening cover.
             While the cover is not in
             place the opening shall
             be constantly attended
             by someone or protected
             on all exposed sides by a
             removable standard
             railing.
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES

(6) Every manhole floor opening (measuring
  larger than 12 inches) shall be guarded by
  a standard manhole cover.

(7) Every temporary floor opening shall have
  standard railings.
  1910.23 GUARDING FLOOR/WALL
       OPENINGS AND HOLES

(8) Every floor hole
  shall be guarded
  by:
  (i) Standard Railing
  with Standard Toe
  Board
  (ii) Floor Hole Cover
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(10) Where doors or gates open directly on
  a stairway, a platform shall be provided
  and the swing of the door shall not reduce
  the effective width to less than 20 inches.




                         20”
                      STEP
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(b) Protection for wall
  openings and holes
  (1) Every wall
  opening from which
  there is a drop of
  more than 4 ft shall
  be guarded
     i.e. shipping docks
1910.23 GUARDING FLOOR/WALL
     OPENINGS AND HOLES
             (c) Protection of open
               sided floors,
               platforms, and
               runways
               (1) Every open sided
               floor or platform 4 ft
               or more above the
               floor shall be guarded
               by a standard railing
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES

(c)(1) A toe board shall be provided
  whenever:
     (i) persons can pass under
     (ii) there is moving machinery
     (iii) hazard of falling materials
  (2) Every runway shall be guarded by a
  standard railing
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES

(3) Regardless of height, open sided floors,
  walkways, platforms above or adjacent
  to dangerous equipment, galvanizing
  tanks, degreasing units and similar
  hazards shall be guarded with railing and
  toe board
   1910.23 GUARDING FLOOR/WALL
        OPENINGS AND HOLES
(d) Stairway railing and guards
  (1) Every flight of stairs having four
  or more risers shall be equipped
  with standard railings
      (i) stairways less than 44 inches
      wide -having both sides enclosed
      at least one handrail on the right
       side descending
      (ii) having one side open – at
      least one stair railing on open
  side
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(iii) having both sides open – one stair
       railing on each side
(iv) Stairways more than 44 inches wide but
   less than 88 inches wide – one handrail on
   each enclosed side and one stair railing on
   each open side
(v) Stairways more than 88 inches wide –
   one handrail on each enclosed side , one
   stair railing on each open side and one
   intermediate stair railing
  1910.23 GUARDING FLOOR/WALL
       OPENINGS AND HOLES
(e) Railings, toe boards and cover
  specifications
  (1) Standard railing consists of top rail,
  intermediate rail and posts and shall have
  a vertical height of 42 inches. Top rail
  (42”) shall be smooth-surfaced.
  Intermediate rail (21”) shall be
  approximately halfway between
 the top rail and the floor.
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(e)(2) Stair railing
  shall be of
  construction similar
  to standard railing.   30”
  The vertical height
  shall be not more
  than 34 inches nor
                               34”
  less than 30 inches
  from upper surface
  of top rail.
 1910.23 GUARDING FLOOR/WALL
      OPENINGS AND HOLES
(e)(6) All handrails shall have a clearance of
  not less than 3 inches between the
  handrail and any other object.

 (8) Skylight screens shall be of such
 construction and mounting that they are
 capable of withstanding a load of at least
 200 pounds.
       1910.24 FIXED INDUSTRIAL
                 STAIRS
(f) Stair treads – rise height
   and tread width shall be
   uniform throughout any
   flight of stairs.

(h)(i) Vertical Clearance –
  vertical clearance above
  any stair tread to an
  overhead obstruction
  shall be at least 7 feet.
       1910.25 PORTABLE WOOD
               LADDERS
(b)(1) Requirements of wood parts
  (i) All wood parts shall be free from sharp
  edges and splinters
(c)(2) Portable stepladders – stepladders
  longer than 20 feet shall not be supplied.
      Three types of ladders
      TYPE IA – Industrial
      TYPE II – Commercial
      TYPE III – Household
     1910.25 PORTABLE WOOD
             LADDERS
(c)(2)(i) General Requirements
  (b) A uniform step spacing, not more than
  12 inches, shall be employed.
  (f) Each ladder shall have a metal spreader
  which holds the front and back sections in
  the open position.
   1910.25 PORTABLE LADDERS
(d) Care and Use of Ladders
  (1)(i) Ladders shall be maintained in good
  condition at all times.
     (iv) Safety feet shall be kept in good
     condition.
     (x) Ladders shall be inspected frequently
     and those which have developed defects
     shall be withdrawn from service.
     (xi) Rungs shall be free of grease and oil.
  1910.25 PORTABLE LADDERS
(d)(2) Use
     (i) Used at a 4:1 pitch, ladders shall be
     lashed or held in position. Ladders shall
      not be used in a horizontal position.
     (ii) Ladders should not be used by
     more than one man at a time.
     (iii) Portable ladders shall be so placed
     that the side rails have secure footing.
  1910.25 PORTABLE LADDERS
(iv) Ladders shall not be placed in front of
  door opening, unless the door is blocked,
  locked or guarded.
(v) Ladders shall not be placed on boxes,
  barrels, or other bases to obtain additional
  height.
(vii) Ladders with broken or missing steps,
  rungs, cleats or side rails shall not be
  used.
1910.25 PORTABLE LADDERS

            (ix) Ladders shall not be
               spliced together.

            (xi) Ladders shall not be
              used as braces or other
              than their intended
              purpose.

            (xii) Tops of stepladders
              shall not be used as
              steps.
  1910.25 PORTABLE LADDERS
(xiii) On two section extension ladders the
  minimum overlap shall be
   Size of Ladder (ft)       Overlap (ft)

  Up to & including 36            3

    Over 36 up to &               4
     including 48
   Over 48 up to and              5
     including 60
  1910.25 PORTABLE LADDERS
(xv) Ladder used to gain access to a roof
  shall extend at least 3 feet above the
  roofline.
(xix) The user should equip all portable rung
  ladders with non-slip bases if a slipping
  hazard is present.
(xx) The bracing on the back legs of a step
  ladder are not for climbing.
1910.25 PORTABLE LADDERS

         * Step ladders can not be
           used as a straight sided
           ladder

         1910.333
            (c)(7) Portable ladders
           shall have nonconductive
           side rails
     1910.27 FIXED LADDERS
(c)(4) Clearance in back of ladder – the
  distance from the centerline of the rungs
  to the nearest permanent object in back of
  the ladder shall be not less than 7 inches.

(d) Special Requirements
  (1)(i) Cages shall be provided on ladders
  of more than 20 feet.
      1910.27 FIXED LADDERS

(1)(ii) Cages shall extend a
  minimum of 42 inches above
  the top of the landing.

 (iv) Cages shall extend down
 the ladder to a point not less
 than 7 feet nor more than 8
 feet above the base of the
 ladder.
     1910.27 FIXED LADDERS
(d)(3) Ladder extensions – the side rails of
  through or side step ladder extensions
  shall extend 3 ½ feet above landings.

 (4) Ladder safety devices – ladder safety
 devices may be used on ladders over 20
 feet in unbroken length in lieu of cages.
     1910.30 OTHER WORKING
            SURFACES
(a) Dockboards (bridge plates)
  (1) Dockboards shall be strong enough to
  carry the load imposed on them.
  (2) Dockboards shall be secured in
  position.
  (3) Powered dockboards shall be designed
  and constructed in accordance with
  CS202-56 (1961)
  (4) Positive protection shall be provided to
  prevent railroad cars from being moved.

				
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