Efficient, Compact Progression for Aid Climbing

The Metolius 4-Step Aider is a lightweight, compact aid ladder designed for climbers who want efficient movement with a lower-profile setup.

Featuring staggered triangular steps and Biothane™ stiffeners, it ensures each step stays open for quick and reliable foot placements-ideal for maintaining rhythm on aid routes.

With reinforced clip-in points, a full-strength grab loop, and sub-steps, the 4-Step Aider provides the control and durability needed for both big wall and technical climbing.

Why You'll Love It

4-step design - Compact and efficient
Stiffened steps - Easy foot placement
Lightweight - Only 241g
Durable build - Designed for repeated use
Versatile - Ideal for aid systems

Built for Aid & Big Wall Climbing

Perfect for:

Aid climbing
Big wall routes
Technical climbing
Multi-pitch systems
Compact setups

Designed for efficient upward progression with reduced bulk

Performance Features

4-Step Ladder Design

Balanced reach and weight

Provides:

Efficient upward movement
Reduced bulk compared to 5-step
Better control in tighter positions

Biothane™ Step Stiffeners

Structured step system

Ensures:

Steps stay open
Quick foot entry
Consistent performance

Reinforced Clip-In Point

Primary attachment

Delivers:

Secure connection
Durability
Confidence on placements

Full-Strength Grab Loop

Upper handling point

Allows:

Efficient upward pulling
Improved balance
Controlled movement

Sub-Steps in Upper Sections

Additional foothold options

Improves:

Precision
Versatility
Adaptability on tricky placements

Bottom Clip-In Point

System integration feature

Enables:

Linking multiple aiders
Maintaining structure
Efficient setups

Technical Specifications

Weight: 241g (8.5 oz)
Length: 1524 mm (60")
Step Spacing: 356 mm (14")

Strength Ratings:
End-to-end: 18 kN
Grab loop: 22 kN
Steps: 4.4 kN

Use: Body weight only

Perfect For

Aid climbers
Big wall climbers
Technical climbers
Intermediate to advanced users