Walk the Plank
Them Bones
By the Numbers
Making the Grade
Loaded Potatoes
100

This is the allowable deflection of a scaffold walk plank

What is 1/60th of an inch?

100

This component is installed on any open side/end of a scaffold

What are guardrails?

100

I am the maximum distance of the first step on scaffold access

What is 24" or 2'?

100

Scaffold stability should consider this before erecting

What is the soil compaction or makeup?

100

Heavy Duty Scaffold

What is 75 psf?

200

Scaffold platforms and walkways should be at least "Blank" inches wide.

What is 18"?

200

This connects frames together

What are coupling pins?

200

Each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least "blank" times the maximum intended load applied or transmitted to it.

What is four (4)?

200

This component sits on the mudsill

What is the base plate?

200

I might be used to support loads above using scaffold, posts, frames, beams, wood.

What is Shoring or Re-Shoring?

300

I am the minimum height for a supported scaffold toe board

What is 3-1/2" 

300

Allows workers to access higher levels of the scaffold

What are access ladders?

300

OSHA 1926.450

What is Sub-Part L?

300

I should never be used to support scaffold legs

What are moveable items or materials?

300

Medium Duty Scaffold

What is 50 psf?

400

Must be able to support their own weight and at least four times the intended load.

What are scaffold planks?

400

The planks rest on me

What is a bearer?

400

Needed every 35' on a scaffold 

What is a rest platform? 

400

Not required, but strongly recommended, I connect the base plate to the sill

What are nails?

400

Light Duty Scaffold

What is 25 psf?

500

Maximum gap between the toe boards and plank

What is 1/4"?

500

Erecting T&C/Systems Scaffold these are required every fourth bay

What is a diagonal brace?

500

Base to height ratio for scaffolds to free stand

What is 4:1?

500

These are the sizes for:

Scaffolds 4 levels or less: 2" x 10" pad, 12"–18" long 

Scaffolds > 4 levels on Type B Soil: 2" x 18" x 18" pad

Scaffolds > 4 levels on Type C Soil: 2" x 36" x 36" pad




What are Mudsills?

500

Scaffolds and scaffold components shall not be loaded in excess of their "Blank" intended loads or rated capacities, whichever is less.

What is Maximum?