Metal Doors AHA (Activity Hazard Analysis / Job Hazard Analysis)

A Metal Doors AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew installing metal doors safe from the metal door leaf handling and hanging crush, from the at-height and wall opening fall, and around the hardware and tools. Metal doors installs metal door leaves — combining the metal-door-leaf-handling and hanging-crush hazard, the at-height and wall-opening-fall hazard, and the hardware and tool hazard. This guide walks through building a Metal Doors AHA that names the metal-door-leaf-handling/hanging-crush, at-height/wall- opening-fall, and hardware/tool hazards and assigns the handling, fall, and hardware controls that hold up in the field.

Why metal doors needs its own AHA#

Metal doors is the installation of metal door leaves — the metal doors (the metal (steel or aluminum) door leaves hung in the already-installed frames, with the door hardware). This closes the doors-and-frames group and the batch, focused on the door leaves alone. The defining feature is that metal doors are the door-leaf installation — hanging the metal door leaves in the frames — so the primary hazard is the metal door leaf handling and hanging (metal door leaves are heavy, especially steel fire-rated doors — the manual-handling, pinch/crush, and dropped- door hazard of hanging the heavy leaf, plus the sharp metal edges), working at the wall openings at height, and installing the door hardware. The hazards combine the metal-door-leaf-handling and hanging-crush (handling and hanging the metal door leaves — the handling and crush hazards), the at-height and wall-opening-fall (working at the openings — the fall hazards), the hardware and tool (installing the door hardware — the hardware and tool hazards), and the eye. The metal-door-leaf-handling/hanging-crush and the at-height/wall-opening-fall justify a dedicated AHA.

Breaking metal doors into steps#

The steps for a Metal Doors AHA follow the work:

• Review the metal door schedule and hardware (safety data)
• Set up opening access and fall protection
• Handle and position the metal door leaves (crush)
• Hang the metal door leaves in the frames
• Install the door hardware
• Adjust and check the door operation
• Manage the handling, fall, and hardware hazards
• Complete

Each step carries a hazard, and the metal-door-leaf-handling/hanging-crush, the at-height/wall-opening-fall, and the hardware/tool are where the most significant risks concentrate.

The hazards step by step#

Metal-door-leaf-handling and hanging-crush

Handling and hanging the metal door leaves — the handling and crush hazards. The controls are metal-door-leaf- handling and hanging controls (metal door leaves are heavy, especially steel fire-rated doors — handling them (manual handling, team lifts for the heavy leaves, the pinch/crush hazard, and the sharp metal edges — cut/ laceration) and hanging them (lifting and aligning the heavy leaf onto the frame hinges — the crush/pinch of the door leaf, fingers between door and frame, and the door tipping or falling if not controlled during hanging, so controlled hanging with adequate crew and door-lifting aids)), and the handling/hanging controls. The metal-door- leaf-handling/hanging-crush is the primary defining hazard — hanging heavy metal door leaves carries handling and crush hazards. (These follow the material-handling fundamentals.)

At-height and wall-opening-fall

Working at the openings — the fall hazards. The controls are at-height and wall-opening-fall controls (metal doors are hung in wall openings throughout the building — a wall opening at height (an upper-floor or elevated door opening before the door is hung and the opening is controlled) is a fall hazard, so fall protection at the openings and opening protection until the door is hung, plus safe access), and the fall/opening controls. The at-height/ wall-opening-fall is a defining hazard — wall openings are fall hazards until the door is hung. (These follow the fall-protection fundamentals.)

Hardware and tool

Installing the door hardware — the hardware and tool hazards. The controls are hardware and tool controls (installing the door hardware (hinges, locksets, closers, panic hardware — hand and power tools, and any drilling/ tapping of the metal door — the tool hazards and metal debris), and adjusting the door operation), and the hardware/tool controls. The hardware/tool is a defining hazard. (These follow the tool-safety fundamentals.)

Eye

The eye (metal handling, hardware, drilling) carries the eye hazard. The controls are eye protection (metal door handling, hardware tools, and metal-drilling debris — full eye protection), and the eye controls. (These follow the eye-protection fundamentals.)

A simple Metal Doors AHA structure#

Metal-door-leaf-handling/hanging-crush control and at-height/wall-opening-fall control#

A Metal Doors AHA centers on metal-door-leaf-handling/hanging-crush control and at-height/wall-opening-fall control. The metal-door-leaf-handling/hanging-crush control addresses the door leaves — controlled by metal-door- leaf-handling and hanging controls (safe handling, team lifts, crush/pinch and sharp-edge control, controlled hanging with door-lifting aids). The at-height/wall-opening-fall control addresses the openings — controlled by at- height and wall-opening-fall controls (fall protection, opening protection, safe access). And the hardware, tools, and eye get hardware/tool and eye controls. An AHA built on metal-door-leaf-handling/hanging-crush control and at- height/wall-opening-fall control, with hardware/tool controls, addresses the hazards that define metal doors.

From the field: what actually goes wrong#

In fourteen years across federal, heavy civil, and industrial projects, metal doors installs the metal (steel or aluminum) door leaves hung in the already-installed frames, with the door hardware, and it closes the doors-and- frames group and this batch. The metal-door-leaf-handling and hanging-crush hazard is the primary defining concern — metal door leaves are heavy, especially steel fire-rated doors, so handling them (manual handling, team lifts for the heavy leaves, the pinch/crush hazard, and the sharp metal edges — cut/laceration) and hanging them (lifting and aligning the heavy leaf onto the frame hinges — the crush/pinch of the door leaf, fingers between door and frame, and the door tipping or falling if not controlled during hanging) are central. Hanging a heavy steel door leaf is a real crush and dropped-load hazard — it needs adequate crew and, for the heaviest doors, door-lifting aids, and it is the moment a finger gets caught between the door and frame if the crew rushes it. The metal door leaf handling and hanging crush is the defining hazard.

The at-height/wall-opening-fall and the hardware/tool are the other defining hazards. On the projects I have run, metal doors are hung in wall openings throughout the building, so a wall opening at height (an upper-floor or elevated door opening before the door is hung and the opening is controlled) is a fall hazard, so fall protection at the openings and opening protection until the door is hung, plus safe access, matter. And the hardware/tool hazard is installing the door hardware (hinges, locksets, closers, panic hardware — hand and power tools, and any drilling or tapping of the metal door — the tool hazards and metal debris) and adjusting the door operation. The eye hazard rounds it out. This closes the doors-and-frames group and the batch. The AHA built on metal-door-leaf- handling/hanging-crush control and at-height/wall-opening-fall control is the one that protects the metal-doors crew.

The bottom line#

A Metal Doors AHA names the metal-door-leaf-handling/hanging-crush, the at-height/wall-opening-fall, and the hardware/tool hazards with specific controls — metal-door-leaf-handling and hanging controls (safe handling, team lifts, crush/pinch and sharp-edge control, controlled hanging with door-lifting aids), at-height and wall-opening- fall controls (fall protection, opening protection, safe access), and hardware and tool controls (safe hardware and installation tools, metal-drilling debris control). The metal-door-leaf-handling/hanging-crush control and the at- height/wall-opening-fall control are the defining concerns. The AHA that manages both is the one that protects the crew.

Frequently asked questions#

Why is the door-leaf handling/hanging crush the defining hazard?

Metal door leaves are heavy, especially steel fire-rated doors — handling them (manual handling, team lifts, pinch/crush, sharp metal edges — cut/laceration) and hanging them (lifting and aligning the heavy leaf onto the frame hinges — the crush/pinch of the door leaf, fingers between door and frame, and the door tipping/falling if not controlled). Hanging a heavy steel door needs adequate crew and door-lifting aids. Controls are metal-door-leaf-handling and hanging controls (safe handling, team lifts, crush/pinch and sharp-edge control, controlled hanging with door-lifting aids), and the handling/hanging controls.

What fall hazards apply?

Metal doors are hung in wall openings throughout the building — a wall opening at height (an upper-floor or elevated door opening before the door is hung) is a fall hazard. Controls are at-height and wall-opening-fall controls (fall protection at the openings, opening protection until the door is hung, safe access), and the fall/opening controls.

What hardware and tool hazards apply?

Installing the door hardware (hinges, locksets, closers, panic hardware — hand and power tools, and any drilling/tapping of the metal door — the tool hazards and metal debris), and adjusting the door operation. Controls are hardware and tool controls (safe hardware and installation tools, metal-drilling debris control), and the hardware/tool controls.

What is metal doors?

Metal doors is the installation of metal door leaves — the metal doors (the metal — steel or aluminum — door leaves hung in the already-installed frames, with the door hardware). Because the heavy metal door leaves carry handling/crush and sharp-edge hazards when hung, the wall openings are fall hazards until the door is hung, and the hardware installation carries hardware/tool hazards, those hazards apply.

Related AHAs and JHAs#

• Metal Doors and Frames AHA — the metal doors and frames
• Doors and Frames AHA — the doors-and-frames fundamentals
• Openings AHA — the openings fundamentals
• Masonry and Block Wall Construction JHA — the frame-in-masonry fundamentals

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Written by Mustafa Tok, CSP, ASP, CHST — OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.