Cosco 17 ft. Aluminum World's Greatest Multi-Position Ladder with 300 lb. Load Capacity-20417T1ASE - The Home Depot


Model # 20417T1ASE

Internet # 203642161

17 ft. Aluminum World's Greatest Multi-Position Ladder with 300 lb. Load Capacity

Cosco 17 ft. Aluminum World's Greatest Multi-Position Ladder with 300 lb. Load Capacity

This item has been discontinued.
The Home Depot no longer carries this specific product.

$159.00 / each


Model # 20417T1ASE

Internet # 203642161

The Cosco world's greatest ladder offers the versatility of 5 ladders in one. Use this Cosco ladder as a step ladder for small jobs, as an extension ladder for the hardest to reach places, as a stairway ladder when uneven surfaces are present, as a wall ladder for hanging pictures and finally as a scaffold when you need a larger range of motion. Boxed Aluminum frame for strength, positive locking hinges for security and flared legs with slip resistant feet for stability.

  • 5 Positions as a step ladder
  • 10 Heights as extension ladder
  • 10 Positions as stairway ladder
  • 3 Heights as scaffold
  • 4 Heights as wall ladder
  • Designed for multiple uses inside and out
  • Flared legs with slip-resistant feet for stability
  • Positive locking hinges
  • Can be climbed on both sides as a step ladder
  • No assembly or additional pieces required
  • Meets ANSI type 1A for extra heavy duty industrial work load rating for 300 lbs.

Info & Guides

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Base Spread (in.)  23.82 in  Ladder Height (ft.)  17 
Maximum ladder length (ft.)  17  Maximum reach (ft.)  22 
Minimum ladder length (ft.)  Rung/Step Depth  3 in 
Ladder Rating  Type 1A - 300 lbs.  Load weight capacity  300 lb. 
Material  Aluminum  Nonslip tread  14 
Number of Steps  14  Product Weight (lb.)  35.6 lb 
Returnable  90-Day  Step rise (in.)  10 
Telescoping  Yes  Twin steps  No 
Weather Resistant  No 
Warranty / Certifications
Certifications and Listings  No Certifications or Listings  Manufacturer Warranty  10 year limited 


Rated 4.6 out of 5 by 28 reviewers.
Rated 3.0 out of 5.0 by I didnt look close enough to the description We had at least four ladders when we bought this and bought this to replace them all. I am big and need every bit of the 300 lb rating so that part is great. However when it said 17ft. I mistakenly took it as that height in the "A" or folded configuration. We were able to replace three but had to keep the 12 footer we had to get on the roof by the woodstove chimney. This is 17 foot or just short of it when opened straight but only about 8 foot give or take when in the folded or "A" configuration. Anyway the capability to setup on stairs or uneven ground is a good attribute also. Wasnt exactly what I wanted but also not extremely disappointed either. November 12, 2013
Rated 4.0 out of 5.0 by Safe flat ladder rungs for standing We replaced our previous ladder which had round rungs, with this17' World's Greatest ladder, which has flat rungs. It's easier to stand on a flat surface versus the round rungs and we feel it's safer. The last time I slipped off the old ladder I started looking for this design feature. It's the only one I found and it's both sturdy and comfortable for your feet. July 12, 2014
Rated 5.0 out of 5.0 by Great ladder Just love the many positions you can put this ladder into. Perfect for accessing the ceiling in our small foyer as it sits on different steps. Good for painting with the addition of a work tray. December 10, 2014
Rated 4.0 out of 5.0 by Worth the price A little hard to put up, maybe since I'm a weakling. I definitely needed the help of my husband. But light -weight enough to carry and seems sturdy. Better than paying the price of the big name ladder. December 10, 2014
Rated 5.0 out of 5.0 by 17 ft aluminum multiposition ladder Husband loves it...feels comfortable with the sturdiness. Very happy with the purchase. I feel more comfortable knowing he is on a safe ladder. December 10, 2014
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