SCAFFOLDING SAFETY

1. 29 CFR 1910.28
29 CFR 1926.452
21/3/2023
1
SCAFFOLDING SAFETY

2. 21/3/2023
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3. Topics to be
discussed….
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Scaffold Design Requirements
Scaffold Erection Requirements
Scaffold Alteration Requirements
Scaffold Dismantling Requirements
Safe Usage of Scaffolding
Tagging System
Scaffolding Inspection Checklist
Scaffolding Permit

4. What is Scaffolding?
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Scaffold is an
elevated temporary
work platform used for
supporting workers
(or) materials (or)
both.

5. Parts of
Scaffolding
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1. Standard
2. Ledger
3. Transom
4. Cross Bracing
5. Top Rail
6. Mid Rail
7. Toe Board
8. Brick Guard
9. Base Plate & Sole Plate

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Basic Parts of Scaffolding

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8. Top Rail, Mid Rail & Toe
Board
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9. Brick Guard
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10. Cross Bracing
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11. Base Plate
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12. Scaffolding
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• There are three basic types of scaffolds:
Supported scaffolds, which consist of one
or more platforms supported by rigid, load-
bearing members, such as poles, legs,
frames, outriggers, etc.
• Suspended scaffolds, which are one or
more platforms suspended by ropes or other
non-rigid, overhead support.
• Other scaffolds, principally man lifts,
personnel hoists, etc., which are sometimes
thought of as vehicles or machinery, but can
be regarded as another type of supported

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14. Scaffolds
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Supported scaffolds consist of one or more
platforms supported by outrigger beams, brackets,
poles, legs, posts, frames, or similar rigid support.
1. Frame (or) Fabricated Scaffold
2. Mobile Scaffold
3. Ladder Jack Scaffold
4. Pump Jack Scaffold
5. Tube & Coupler Scaffold
6. Pole Scaffold

15. Frame (or) Fabricated
Mobile
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16. Mobile Scaffold
Braced to prevent collapse.
Casters and wheels locked to
prevent movement while in a
stationary position.
Platforms must not extend beyond
the base supports of the scaffold,
unless stability is ensured.
Not allowed to ride on scaffolds
unless the surface on which
scaffold is being moved is free of
pits, holes and obstructions.
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17. Suspended
Scaffolds
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• Single Point
• Two Point
• Multi Point
• Catenary
• Interior Hung
• Needle Beam
• Multi Level
• Float

18. Single Point Two
point
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19. Multi Point
Catenary
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20. Suspended Scaffold Safety
Counterweights
secured, and not
removed until
scaffold
disassembled
Tiebacks
secured to
sound
anchorage on 21/3/2023
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21. Other Scaffolds – Aerial Lift
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22. Aerial Lift
 Ensure proper fall
protection prior to
using
 Includes use of
guardrails
 Never exceed load
capacity
 Do not move lift truck
with workers in
basket unless
adequately designed
(upper controls –
personnel carriers) 21/3/2023
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23. Scaffold Competent Person
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 Inspect scaffolding and
components prior to
each work shift
 Determine possibility of
providing fall protection
and access
 Evaluate connections to
support load
 Determine structural
soundness
 Train erectors and
dismantlers to recognize
work hazards

24. Scaffold Tagging System
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25. Red Tag….
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Indicates the
scaffold has
not been
inspected or is
not safe for
use
“DO NOT USE
SCAFFOLD”
message must
be visible

26. Green Tag….
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Indicates scaffold
is complete, has
been inspected,
and is safe for
use at the time of
inspection
GREEN scaffold
tag valid for a
maximum of two
weeks
2/28/02
2/14/02
A. SULAIMAN
673-2400
K. SALEH
Khaled Saleh
673-2308
431056
K. SALEH
Khaled Saleh
673-2308
431056
K. SALEH
Khaled Saleh
673-2308
431056
K. SALEH
Khaled Saleh
673-2308
431056
3/14/02 3/28/02
A. SULAIMAN
673-2400
A. SULAIMAN
673-2400
A. SULAIMAN
673-2400
6
TANK 105
a
233100
Ahmed Sulaiman
233100
Ahmed Sulaiman
233100
Ahmed Sulaiman
2
233100
Ahmed Sulaiman
Insert fits
into holder

27. Yellow Tag….
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Indicates scaffold
has been
inspected and
may be used only
by workers
wearing a
properly anchored
personal fall
arrest system,
including a full
body harness and
lanyard
YELLOW scaffold
tag valid for two
weeks maximum
2
4/10/02
A. SULAIMAN K. SALEH
Khaled Saleh
673-2308
431056
6
TANK 105
a
233100
Ahmed Sulaiman
673-2400
Insert fits
into
holder

28. Displaying of Tag….
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RED scaffold tag (holder) to be
built into scaffold, near each point
of access, by scaffold craftsmen
Only qualified scaffold craftsmen
are allowed on a scaffold with a
RED scaffold tag

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If Scaffold EQUAL TO or LESS THAN 6
meters (20 feet) high:
Scaffold Supervisor signs
GREEN or YELLOW scaffold
tag(s) and prints date when next
inspection is due
Supervisor inserts the signed
GREEN or YELLOW tag(s) into
the RED holder(s)
“Date of next inspection”
must not be more than 2
weeks ahead

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If Scaffold MORE THAN 6 meters
(20 feet) tall:
Scaffold Supervisor signs tag(s)
and leaves “Date of Next
Inspection” blank
Supervisor gives the signed
GREEN or YELLOW tag(s) to a
Scaffold Inspector
• All Scaffold Inspectors and
Scaffold Supervisors MUST BE
CERTIFIED

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Scaffold Inspector inspects
scaffold
As soon as possible after Scaffold
Supervisor’s inspection
Scaffold Inspector also fills in and
signs separate “Scaffold Field
Inspection Checklist”
Inspector gives this checklist to Work
Permit Issuer’s unit, who will keep it
until scaffold is taken down
If Scaffold MORE THAN 6 meters
(20 feet) tall:

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If Scaffold Inspector agrees that
scaffold is safe to use, he will:
Fill in and sign GREEN or
YELLOW scaffold tag(s)
• Previously given to him by Scaffold
Supervisor
If Scaffold MORE THAN 6 meters
(20 feet) tall:

33. Scaffold Erection Requirement
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Only competent & experienced
person must be permitted to erect &
dismantle the scaffolding at site.
Guardrails, mid rails & toe boards
must be placed on all open side of
platforms more than 1.2 meters
above ground (or) floor.

34. Scaffold Erection Requirement
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 The top rail must be placed
approximately 1200 mm high from the
platform.
 The mid rail must be placed
approximately 600 mm high from the
platform.
 The toe board must be placed
approximately 300 mm from the

35. Top Rail, Mid Rail & Toe
Board
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36. Scaffold Erection Requirement
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 All scaffolds shall be provided with an access
ladder that extends to at least 1 meter above
the platform.
 Platforms should be 220mm wide & 25mm
thick and it should be tightened with
scaffolding to prevent movements in high
winds.
 Scaffolds should be cleaned after the
completion of work.

37. Scaffold Erection Requirement
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Should be on a firm foundation with
base plates.
Should be properly braced & tied
up.
Should have a properly tightened
platform.
Should have guardrails over 1.2
meters.
Should have adequate means of

38. Ladder Safety

39. Scaffold Erection Requirement
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• Must be able to
support its own
weight and 4 times
the maximum
intended load.
• Scaffolds must be
designed by a
qualified person.

40. Scaffold Erection Requirement
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Any scaffold damaged or
weakened from any cause
shall be immediately
repaired and shall not be
used until repairs have
been completed.

41. Planking
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All planking or platforms shall be
overlapped (minimum 12 inches) or
secured from movement.
Scaffold planks shall extend over
their end supports not less than 6
inches nor more than 18 inches.

42. Platform Construction
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No paint on wood platforms, except
edges that may be marked for
identification.
Fully planked.
No mixed components, unless
compatible and integrity maintained.
No modification of mixed components
unless approved by competent
person.

43. Tips
Never use
scaffolds that
do not have
proper
guardrails
installed
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44. Common Scaffold Safety
Tips
Must bear on
adequate
foundations
Unstable objects
will not be used
as working
platforms
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45. Common Scaffold Safety
Tips
Lifeline
support
must be
checked for
compatibility
prior to use.
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46. Life Line
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LIFE LINE

47. Access
Must have safe
access
Cross-braces
prohibited as
means of access
Rest platforms
required at 35 feet
intervals
Slip-resistant on all
steps and landings
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48. PFAS
 Workers must be
trained how to
properly use
PFAS.
 PFAS include
anchorage, lifeline
and full body
harness with
double lanyard.
 Both Active & 21/3/2023
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49. Restrictions
 Don’t overloaded.
 Don’t Erect & move near power
lines .
 Repair damaged components.
 Restrict horizontal movement of
workers unless provided with
fall protection.
 Prohibit work activities during
high winds unless authorized.
 Remove whole scaffold from
service until repaired.
Note – Scaffolds must be
erected 10 feet away of the 21/3/2023
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50. Over Head Power Lines
Proper clearance near overhead lines
Keep 10 foot minimum unless de-
energized,
Relocated, or installed protective covering
installed! 21/3/2023
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51. Restrictions
No work on
snow, or ice
covered
platforms
No barrels,
boxes or
ladders on top
of scaffolds
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52. Training Required
 Employees must receive training from
qualified person that covers:
Nature of hazards, electrical, falls, and
falling items
Use of scaffold / handling
Maximum intended load and load
carrying capabilities of scaffold
Procedures for setup, dismantling or
moving the system
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53.  Follow the manufacturer's instructions when erecting
the scaffold.
 Do not work on scaffolds outside during stormy or
windy weather.
 Do not climb on scaffolds that wobble or lean to one
side.
 Initially inspect the scaffold prior to mounting it. Do
not use a scaffold if any pulley, block, hook or fitting
is visibly worn, cracked, rusted or otherwise
damaged.
 Do not use any scaffold tagged "Out of Service".
 Do not work on platforms or scaffolds unless they are
fully planked.
In General….
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54. In General….
 Do not walk or work beneath a scaffold unless a wire
mesh has been installed between the top rail and the toe
board or planking.
 Use your safety belts and lanyards when working on
scaffolding at a height.
 Attach the lanyard to a secure member of the scaffold.
 Do not climb the cross braces for access to the scaffold.
Use the ladder.
 Do not jump from, to, or between scaffolding.
 Do not move a mobile scaffold if anyone is on the
scaffold.
 Chock the wheels of the rolling scaffold, using the wheel
blocks, and also lock the wheels by using your foot to
depress the wheel-lock, before using the scaffold.21/3/2023
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55. Resources
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 http://www.osha.gov/SLTC/etools/scaffolding/ind
ex.html
 http://www.osha.gov/pls/oshaweb/owadisp.show
_document?p_table=STANDARDS&p_id=9720
 http://www.hse.gov.uk/construction/safetytopics/
scaffoldinginfo.htm
 Scaffold Safety Hand book – Saudi Aramco