Werner D1520-2 Aluminum Extension Ladder, 20Ft Type1A(300lb)

Werner D1520-2 Aluminum Extension Ladder, 20Ft Type1A(300lb)

The Werner D1520-2 Aluminum Extension Ladder is a heavy-duty, professional-grade 20 ft ladder built for strength, stability, and smooth operation, designed to handle demanding jobs without flexing under pressure. With a 300 lb Type IA duty rating, extra heavy-duty I-beam rails, and TWIST-PROOF® ALFLO® rung joints, this ladder delivers rock-solid performance whether you're working at height or just trying not to think about how high you are.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: D1520-2
• Brand: Werner
• Product Type: Aluminum extension ladder
• Ladder Size: 20 ft
• Duty Rating: Type IA (300 lb capacity)
• Material: Aluminum
• Number of Sections: 2
• Number of Rungs: 20
• Reach Height: 20 ft
• Extension Length: 17 ft working length
• Section Length: 10 ft per section
• Rail Type: Extra heavy-duty I-beam rails
• Rail Depth: 3 in
• Rung Type: D-shaped TRACTION-TRED® rungs
• Rung Size: 1-3/4 in
• Rung Joint: ALFLO® rung joint for TWIST-PROOF® performance
• Locks: Heavy-duty spring-loaded rung locks
• Pulley System: Smooth operating rope and pulley (included)
• Guide System: Top and bottom guide brackets for smooth extension
• Feet: Slip-resistant shoes with SHU-LOK® spur position capability
• End Caps: Mar-resistant to protect contact surfaces
• Adjustable Increments: 12 in
• Base Width: 18-1/8 in
• Fly Width: 18-1/8 in
• Bottom Width: 18 in
• Flange Dimension: 1-1/8 in
• Closed Length: 10 ft
• Work Area: 17 ft
• Open Volume: 7.7 cu ft

Ideal For

• Contractors and professionals needing a durable, high-capacity extension ladder
• Jobs requiring stable performance at full extension heights
• Outdoor or construction environments where rugged materials matter
• Users who value smooth extension and reliable locking systems
• Anyone who wants a ladder that feels solid underfoot—because confidence is nice when you're 20 feet up