Platform vs. Extension Ladders: What’s Best for Your Project?

Discover the key differences between platform ladders and extension ladders. Learn which ladder type suits your project best, with expert tips from Ladder Shop.

Choosing the Right Ladder for the Job

When it comes to working at height, selecting the right ladder is essential for safety, efficiency, and productivity. Two of the most commonly used ladder types are platform ladders and extension ladders, each designed for specific tasks and environments.

What Is a Platform Ladder?

A platform ladder is a self-supporting ladder with a wide, stable top step or platform. It’s ideal for tasks that require both hands or extended time at height.

Best for:

• Indoor maintenance
• Painting and decorating
• Electrical work
• Warehousing and retail

Key Benefits:

• Built-in platform for comfort and tool placement
• No need to lean against a wall
• Excellent stability and safety
• Additional safety accessories available, such as castors, safety gates, tool trays and handrails.

Limitations:

• Specific height use
• Bulkier to transport
• Requires a stable flat surface

Ladder Shop stocks a large range of platform ladders in aluminium and fibreglass, with platform heights ranging from 0.6m (2ft) – 4.3m (14ft).

Platform Ladder Approximate Reach Height and Footprint Guide

Platform Height	Open Footprint (Approx.)	Maximum Reach Height*
0.6 m (2 ft)	0.58m x .0.99m	2.5m
0.9 m (3 ft)	0.62m x 1.14m	2.8m
1.2 m (4 ft)	0.67m x 1.29m	3.1m
1.5 m (5 ft)	0.72m x 1.45m	3.5m
1.8 m (6 ft)	0.76m x 1.59m	3.7m
2.1 m (7 ft)	0.80m x 1.73m	4.0m
2.4 m (8 ft)	0.85m x 1.89m	4.3m
3.0 m (10 ft)	0.94m x 2.19m	4.9m
3.6 m (12 ft)	1.03m x 2.49m	5.5m
4.3 m (14 ft)	1.15m x 2.90m	6.2m

*Maximum reach height is estimated as platform height + 1.7 m (average user height plus vertical reach). All figures are approximate and may vary by manufacturer.

What Is an Extension Ladder?

An extension ladder consists of two or more sliding sections that extend to reach higher elevations. It must be leaned against a stable surface.

Best for:

• Roofing and gutter work
• Outdoor construction
• High-reach tasks

Key Benefits:

• Adjustable height
• Compact storage
• Lightweight and versatile
• Self-levelling legs available

Limitations:

• Requires a stable surface
• Less comfortable for long-duration tasks
• Needs to lean against a stable surface

Extension Ladder Reach Height Guide

Closed Length	Extended Length	Maximum Reach Height*
2.7 m	3.9 m	4.2 m
3.3 m	5.1 m	5.4 m
3.9 m	6.3 m	6.6 m
4.5 m	7.5 m	7.8 m
5.1 m	8.5 m	8.8 m
5.6 m	9.9 m	10.2 m
6.3 m	10.8 m	11.1 m

*Maximum reach height is estimated as extended length + 0.3 m, assuming the user’s standing height and reach. Actual figures may vary slightly by manufacturer.

Platform Ladder vs. Extension Ladder: Ladder Comparison

Feature	Platform Ladder	Extension Ladder
Height Reach	Low to medium	Medium to high
Stability	High, self-supporting	Depends on the surface and setup
Comfort	Excellent for longer tasks	Moderate; short-duration access
Portability	Less portable	Highly portable
Ideal use	Indoor, hands-free work	Outdoor, high-reach tasks
Accessories	Castors, gates, trays, rails	Stabilisers, levellers, stand-offs

Safety First: AS1892 Compliance

No matter which ladder you choose, ensure it complies with AS1892, the Australian Standard for portable ladders. This guarantees your ladder meets safety, durability, and performance benchmarks.

Get the Right Ladder With Ladder Shop

Ladder Shop carries a wide range of AS1892-compliant platform and extension ladders from trusted brands, including LadaMax, Bailey, Indalex, and Branach. Platform ladders give you stability and a hands-free workspace indoors. Extension ladders provide safe access to higher outdoor areas.

Not sure which suits your job? Our product specialists can help you match the right ladder, height, and accessories to your task, budget, and compliance needs.