Whether you are selling, recommending, or using a Bailey ladder you will need to understand the most common terms. Some of these are standard, others are unique.


Arms – The side arms of the ladder that connect the two sections of a stepladder

Base Section – The bottom section of an extension ladder

Brace – The brace that supports a tread

Clutch – The mechanism on the extension ladder that allows it to raised and lowered

Domestic Duty Rating – A ladder that can only be used in the home

Double Sided Stepladder – A stepladder that has two frames with treads

Dual Purpose Stepladder – A ladder that converts from a stepladder to a straight ladder

Duty Rating – Indicates if the ladder can be used on a work site on only in a home

Electro-Safe™ - A fibreglass ladder that has non-conductive stiles

Extension Ladder – An extendable straight ladder

Feet – The soles of the ladder that prevent the ladder from slipping

Fly Section – The movable section of an extension ladder

Front Fly – The movable section of an extension ladder when it is on the front of the ladder

Hook – A latching device sometimes used on small extension ladders

Industrial Duty Rating – A ladder that is allowed in the work place and can also be used at home

Ladder-walk – Moving the ladder when being used with someone on it

Load Rating – The maximum load the ladder can sustain including the user and any tools or equipment

Mobile Scaffolding – A scaffold system with lockable castors

Mobile Work Platform – A platform system with lockable castors

Non-conductive Ladder – A fibreglass ladder that will not conduct electricity

Platform Stepladder – An “A” frame ladder with a platform for the highest standing surface

Punchlock® - A patented production technology to manufacture twist resistant ladder frames

Quicklock - A patented internal arm system allowing single handed opening and closing a stepladder

Rear Fly – The movable section of an extension ladder when it is on the back of the base section

Rope Pulley/Clutch – A system that allows an extension ladder to extended and lowered

Rungs – The climbing steps on an extension ladder

Single Ladder – A fixed length straight ladder

Single Sided Stepladder – An “A” frame ladder with only one climbing frame

Step Extension Ladder – A ladder that converts from a stepladder to an extension ladder

Step Stool – A small A frame ladder

Stiles – The side rails of a stepladder or extension ladder

Swaging – A method of rolling the ends of the rungs/treads to make a ladder frame

Top Cap – A cover for the top of the stiles of a stepladder

Treads – The climbing surfaces of a stepladder

Tri-brace – Triangular shaped braces

‘‘V’ (Vee) Rung – Allows the ladder to be safely used against poles and trees


A method of connecting the tread to the stile of a Bailey® ladder.

Benefit: Provides greater torsional rigidity. Torsion is the stress/deformation caused when one end of an object is twisted in one direction and the other end is held motionless or twisted in the other/opposite direction. The Punchlock® design helps prevent this ensuring a ‘super strong’ tread to stile joint is achieved, hence making the ladder more rigid and stable to use.

Key Benefits:

• Creates a very tight and strong tread to stile joint

• Greater torsional rigidity

• Makes the ladder safer to use


A patented design for internal spreader arms.

Benefit: Provides additional stability for the ladder by ensuring that when engaged/open, the chances of the ladder ‘walking’ or moving from side to side are reduced. This is a great test when buying a ladder. Simply open the ladder and push on one or more corners. If the ladder moves in a forward motion then there may be an increased chance that this will occur when the ladder is actually used.

Key Benefits:

• Reduces ladder-walk

• Increases stability and safety

• Is easy to use and won’t catch/trap fingers