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Trestle / A-Frame Ladder

A trestle or A-frame ladder is a self-supporting ladder that stands on its own without a wall to lean on, historically paired in trestle form to carry planks between two units. Models in this class run 2 to 32 ft, and listed duty ratings are 300 lb. The catalog lists 10 models from Werner, Louisville Ladder and Michigan Ladder.

Modelos

2–32 ft (0.6–9.8 m)

Size (ladder height)

Marcas

Cat classes

Elija una clase de tamaño — la capacidad y el alcance varían en la gama.

Cómo funciona

Two hinged sections lock into a stable A geometry, with rungs on both faces on true trestle designs so two workers can climb opposite sides or a plank can span between paired units. Extension-trestle variants add a sliding center section that raises working height beyond the base frame. The tall end of the class serves warehouses, churches, gyms and other high open interiors where nothing exists to lean a ladder against.

Tipos y variantes

Standard A-frame trestles: Double-front ladders climbable from both faces.
Extension trestle ladders: A sliding vertical section between the frames extends working height.
Tall-interior models: The 20-32 ft end of the class for high open ceilings and stairwell volumes.

Especificaciones clave

Especificación	Rango típico	Qué significa
Size (ladder height)	2–32 ft (0.6–9.8 m)	The class spans small utility frames up to models for the tallest self-supported interior access.
Duty rating / load capacity	300 lbs (136 kg)	Every listed model carries a 300 lb heavy-duty rating.
Brands	Werner, Louisville Ladder, Michigan Ladder	The manufacturers represented in the class listings.

Cómo la industria lo dimensiona

Trestle ladders are sized by frame height, with catalog bands at 2-8, 8-12, 20-32 and 32 ft. Extension-trestle designs are specified by base plus extended height. Selection is driven by ceiling height in self-supported settings — the determining question is the tallest interior the ladder must serve, since every listed model shares the same 300 lb duty rating.

Aplicaciones

High-ceiling interior maintenance in warehouses and gyms
Lighting and fixture work in churches and halls
Two-worker tasks from opposite ladder faces
Plank-and-trestle platforms for wall lines
Stairwell and atrium access

Seguridad y operación

Hinge locks and (on extension trestles) section locks are verified engaged before climbing.
Tall self-supporting ladders are sensitive to level footing — the 20-32 ft class demands flat, hard floors and a footing check every move.
The 300 lb duty rating covers worker plus tools; plank-and-trestle setups follow scaffold plank ratings as well.
Three points of contact and no side-reach apply exactly as on stepladders — height only raises the stakes.

Normas y certificaciones

ANSI ASC · A14.2: Portable metal ladder standard covering trestle and extension-trestle designs.
OSHA · 29 CFR 1926.1053: Construction ladder requirements for self-supporting ladders.

Preguntas frecuentes

What distinguishes a trestle ladder from a step ladder?

Trestles are climbable on both faces and traditionally work in pairs carrying a plank; extension-trestle models add a sliding center section for extra height.

How tall do trestle ladders go?

This class runs 2 to 32 ft, with the tall bands serving high open interiors where nothing exists to lean a ladder against.

What is the load rating?

Every listed model carries a 300 lb duty rating covering the worker and everything carried.

Comparar modelos populares

Buscar por especificación →

Normalizado a las mismas unidades. Un guion significa que el valor no fue publicado.

Modelo	Altura máx	Capacidad de carga
Louisville Ladder FT1506	6 ft (1.8 m)	661 lb (300 kg)
Louisville Ladder FT1508	8 ft (2.4 m)	661 lb (300 kg)
Louisville Ladder FT1510	10 ft (3.0 m)	661 lb (300 kg)