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Description
Werner Square Rung Extension Ladder 4.25m Double (57711420)The 577 Series 4. 13m double section extension ladder is constructed using high grade aluminium and extends to 7. 21m. Box section stiles provide added rigidity and sturdiness to ensure maximum performance on the job site. Features include unique wrap around top clips with smooth glide runners to reduce wear and tear, slip resistant square shaped rungs, and a wide stabiliser for added safety during use. Approved to the latest EN131 standard. For
The 577 Series 4.13m double section extension ladder is constructed using high grade aluminium and extends to 7.21m. Box section stiles provide added rigidity and sturdiness to ensure maximum performance on the job site. Features include unique wrap-around top clips with smooth-glide runners to reduce wear and tear, slip-resistant square shaped rungs, and a wide stabiliser for added safety during use. Approved to the latest EN131 standard. For Professional Use.
Free delivery (2-3 working days)
Features:
High performance robust box section stiles for durability
Heavy-duty wide stabiliser with slip-resistant feet for added safety
Integrated ladder level gauge for accurate positioning
Slip-resistant square rungs for comfort and security
Unique wrap-around top clips with smooth-glide runners to reduce wear and tear
Locking catches secure sections together for safe use and easy transportation
150kg load capacity**
Approved to the latest EN131 Standard
For Professional Use
Specifications:
Unique Selling Point Reach Greater Heights
Size 4.13m
Type Professional
Style Double Section
Approx. Product Weight (kg) 18.15kg
Max. Open Extended Length (m) 7.21m (23ft 7in)
Max. Standing Height (m) 5.97m (19ft 7in)
Safe Working Height (m) 7.72m (25ft 3in)
Number of Sections 2
Performance Professional
Material Aluminium
Colour of Ladder Rail Aluminium
Stabiliser Width (m) 1.2m (3ft 11in)
Ladder Width (m) 0.49m (1ft 7in)
Foot Material Plastic
Approx. Closed Length (m) 4.13m (13ft 6in)
Section x Rungs 2 x 14
Base Width (m) 1.2m (3ft 11in)
Certifications EN131 Professional and Non-Professional Use
Tread Type Square Rungs
Project Type Building and Maintenance
Max. Load (kg) 150kg (23st 9lb)
Guarantee 10 Year
Size 4.13m
Type Professional
Style Double Section
Approx. Product Weight (kg) 18.15kg
Max. Open Extended Length (m) 7.21m (23ft 7in)
Max. Standing Height (m) 5.97m (19ft 7in)
Safe Working Height (m) 7.72m (25ft 3in)
Number of Sections 2
Performance Professional
Material Aluminium
Colour of Ladder Rail Aluminium
Stabiliser Width (m) 1.2m (3ft 11in)
Ladder Width (m) 0.49m (1ft 7in)
Foot Material Plastic
Approx. Closed Length (m) 4.13m (13ft 6in)
Section x Rungs 2 x 14
Base Width (m) 1.2m (3ft 11in)
Certifications EN131 Professional and Non-Professional Use
Tread Type Square Rungs
Project Type Building and Maintenance
Max. Load (kg) 150kg (23st 9lb)
Guarantee 10 Year
*Safe Working Height based on 1.75m (5ft 9in) as the average reach height of a person
**Load includes user, tools, materials, etc.
**Load includes user, tools, materials, etc.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 2111 reviews
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Product Reviews
★★★★★ 4
It’s okay
Format: Paperback
I’m a veteran RN who left nursing to raise my family. I let my license expire because I did not have to work, nor did I want to. I was burnt out. Anyway, I decided to get my license reinstated and instead of doing expensive refresher courses, I’m taking the NCLEX. Again. After 18 years. I just wanted to brush up on some of the topics and procedures. I don’t know… this book was okay. It was nice to have access to all the practice questions, but I did notice that a lot of times, the “correct” answers went directly against what it says in the book. I feel like that’s confusing, especially for a new grad nurse who doesn’t have much time in the field. Anyway, I wouldn’t buy this again, but I’m testing tomorrow, so we will see how it goes!
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Reviewed in the United States on August 10, 2022
★★★★★ 5
YOU NEED THIS
Format: Paperback
This helped me pass my NCLEX-RN after failing 3x. You have to buy it !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2022
★★★★★ 5
NCLEX Review Tool
Format: Paperback
Passed on the first try! Easy to read and understand. Good for practice and review!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
★★★★★ 5
perfect for nursing exams
Format: Paperback
has helped me a lot with nursing exam. i really like that the subjects are separated by systems. if i would, id get this over any other book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
★★★★★ 5
Good Information, Good Practice Questions
Format: Paperback
I got this book to study some nursing questions. Really nice book didn’t come shrink wrapped with plastic though but wasn’t damaged or anything. Covers a broad range of topics. Excellent study resource.
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Reviewed in the United States on November 9, 2024