SKU: 5147330127

ALCO-LITE® TRL Series Aluminum Truss Type Roof Ladders

Sale price$372.57 Regular price$413.97
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Description

ALCO-LITE® TRL Series Aluminum Truss Type Roof LaddersTRL SERIES ALUMINUM TRUSS TYPE ROOF LADDERS ALCO LITE truss construction ladders have been a tradition in the industry since their inception by our founder. Built with the same work ethic and craftsmanship as those of the 1930s, you can depend upon their truly traditional quality. Truss ladders offer the same strength and durability as their pumper ladder counterparts, with additional rigidity for added comfort at height. Staypoles or "tormentors" can

TRL SERIES ALUMINUM TRUSS TYPE ROOF LADDERS

ALCO-LITE® truss construction ladders have been a tradition in the industry since their inception by our founder. Built with the same work ethic and craftsmanship as those of the 1930s, you can depend upon their truly traditional quality.

Truss ladders offer the same strength and durability as their pumper ladder counterparts, with additional rigidity for added comfort at height. Staypoles or "tormentors" can be added to any length ladder. The truss design provides maximum rigidity.

  • Field repairable with factory parts.
  • Equipped with high-strength butt spurs and rounded aluminum top caps for increased durability
  • TRL nests in the base section of TEL or TEL3 models
  • Truss design for maximum strength to weight ratio
  • Meets/exceeds N.F.P.A. 1931 standard
  • Oversized 2-1/4” pulley for easy operation
  • TRL comes with 3/4" reinforced roof hooks

Available Custom Options (POA)

  • Special width for replacement ladders available upon request
  • TRL available 3-1/2" wider to nest with other TRL or TWL
  • Truss type single wall ladder available

 

Model

Length

Width

Banking
Thickness

Weight
in lbs.

TRL-12

12' - 5"

19-1/16"

3-3/4"

43

TRL-14

14' - 9"

19-1/16"

3-3/4"

50

TRL-16

16' - 11"

19-1/16"

3-3/4"

56

TRL-18

18' - 2"

19-1/16"

3-3/4"

60

TRL-20

20' - 6"

19-1/16"

3-3/4"

65

TRL-24

24' - 0"

19-1/16"

3-3/4"

76

TRL-26

26' - 4"

19-1/16"

5-7/16"

92

TRL-28

28' - 8"

19-1/16"

5-7/16"

100

 

TRL (12’-28') Drawing

Alco-Lite Catalog

 

AN IMPORTANT MESSAGE TO OUR CUSTOMERS

Due to the size of these ladders, they are susceptible to damage during transit.

Please be sure to inform anyone who may be accepting this shipment that they should carefully inspect the ladders for damage before accepting the shipment or signing the trucker's bill of lading.

  • Do not allow the trucker to deliver the shipment without first inspecting the ladders.
  • If you find any damage, you are instructed to note damages on the bill of lading and refuse the shipment.
  • If the trucker does not allow you reasonable time to inspect the ladders, you are instructed to refuse the delivery and note the reason on the bill of lading.
  • Unfortunately, we cannot be responsible for any hidden damages. Once you sign the bill of lading and accept the ladders the manufacturer nor we can file any damage claims.

The manufacturer will file all refused damage claims. Replacement of damaged ladders will be handled in the following manner.

  • Stock ladders- Replacement ladders will be shipped as soon as they are available.
  • Special and all non-standard ladders will be repaired and re-shipped as soon as possible.

Our contract with Alco-Lite only permits us to sell these ladders to fire departments. We cannot ship these ladders to industrial, commercial, or private accounts.


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5147330127

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Verified Purchase
Daniel Rosehill
Houston, US
★★★★★ 5
A wonderful primer for those discovering the amazing world of generative AI
Format: Paperback, Format: Paperback
Somewhere in the past year, ChatGPT has gone from "cool, interesting, amusing" to a massively valuable work assistant capable of writing Python scripts, analysing data, and doing lots, lots, more. The key to this? The rapid evolution of OpenAI's GPT models and making my first forays into prompt engineering. If I thought I was getting good, though, this book took me reminded me that I'm just scratching the surface. Halfway through the first chapter I was already furiously scribbling notes in the margins for what I could do better with my prompt writing and by the end of the text I felt like I had gotten a very good grounding - not just in GPTs specifically but in the bigger picture of how these hugely powerful tools were trained and came to maturity. I imagine that few will argue with my assertion that there is lots of hyperbole and "noise" in the AI space right now which, as ever, makes it hard to pick out the signal from the noise. Which is precisely why I sought out an O'Reilly title and I'm very glad that I did. Thorough, excellent, and I hope that this edition will be the first of many. As this rapidly maturing field scales and matures I think that prompt engineering will be an essential discipline to master. Pick up this text to get a good foothold on things.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2024
S
Verified Purchase
Scott J. Pearson
Cuba, US
★★★★★ 4
Understanding AI prompts as a science
Format: Audiobook
Prompt engineering is the art and science of finding the right words to generate the right responses from artificial intelligence (AI). It's becoming a skill in-demand in today's workplaces. It's also becoming an essential skill for life. To understand prompt engineering, you must understand how AI tools understand their inputs. This book explains that to you in many forms. It covers prompting as it intersects all the major AI disciplines, like general prompts (as in a ChatBot), fine-tuning, and retrieval-augmented generation (RAG). It also introduces how prompting intersects a couple of image-generation tools. As a scientist, I appreciate the theoretical approach to these practical matters. Too many people are hacks at AI these days, and any technical understanding can rapidly advance an individual's effectiveness. Prompt engineering is often made fun of as a "soft" topic, but as this book demonstrates, it intersects all the major AI areas. Presumably less garbage in means less garbage out. This book shows how you can make that take place. As typical for O'Reilly materials, this book appeals to people who desire an intermediate-to-advanced understanding of how AI works. It's not for the casual user. Anyone technical involved in professional knowledge generation using AI can benefit from understanding the dynamics "under the hood." It's a good, though perhaps not ground-breaking, textbook for those of us unable to take a class in the subject. Prompt engineering may be a soft topic to many, but books like this ground the field in the science that can make or break a digital or software product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025
J
Verified Purchase
Jason Bolton
Draper, US
★★★★★ 5
Great book
Format: Paperback
Great book! It is helpful as I work towards my Masters of Science in Applied Artificial Intelligence
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Reviewed in the United States on December 20, 2025
J
Verified Purchase
James Gianoglio
Lowell, US
★★★★★ 5
Comprehensive Guide with Practical Insights
Format: Paperback
This is a solid book for understanding the art and science of working with LLMs and other generative AI models. I always struggled with getting the output I was looking for, and wasn't sure how best to "ask" the models for what I wanted. This book did a great job of laying out the strategies and practical guidance to craft the prompts. There were a lot of tips and tricks, but the overall understanding and framework around prompt engineering has been super useful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
M
Verified Purchase
Matt B
Boise, US
★★★★★ 5
A must read!
Format: Paperback
Hands down, the best book on prompt engineering and implementing LLMs. Really enjoyed Michael and James deep dive. Whether you're technical or not, this book is foundational to a deeper understanding in how to properly explore and implement LLMs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024

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