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Little Giant

Little Giant Skyscraper 21 ft Adjustable Extension Stepladder, 10121

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Availability: Only 5 left in stock, order soon!
Fulfilled by Acme Tools
Arrives Sep 14 – Sep 22
Order within 4 hours and 42 minutes
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Size: 21 Ft.


Style: Stepladder


Features

  • REACH WHAT OTHERS CANT: Adjusts to reach high ceilings, stairwells, chandeliers, and skylights where lifts and scaffolding are bulky or impractical.
  • SET UP IN SECONDS: Quickly adjust the ladders height and shape using the U Locks and Palm Buttons for fast, secure positioning.
  • TWO CAN CLIMB. BOTH CAN WORK: Both sides are rated to 375 lbsbuilt strong so two people can be on the ladder at the same time in A-frame position.
  • SURE FOOTING: Heavy duty non slip feet grip the surface to help prevent shifting or sliding while you work at height.
  • LOCKED FOR SAFETY: Built in safety straps help prevent overspreading and keep the ladder stable, especially in two person use or when working at full height.

Description

Your job has tall ceilings and hard-to-reach places which require you to use lifts or scaffolding to perform maintenance. Sometimes these options are bulky, preventing you from getting the work done. The Little Giant SkyScraper adjustable stepladder helps you complete those tasks more easily. - Reaching Heights- The SkyScraper is a stepladder designed to help you reach chandeliers, skylights and other difficult positions in rooms with high vaulted ceilings. - Work Around Obstacles- Since the SkyScraper is adjustable, it works around obstacles like benches and stadium seating. - Easy to Transport and Store- While the SkyScraper reaches all those hard-to-reach jobs, it stores in just over half of its maximum extended height. - Benefits- The SkyScraper is rated to hold 300 lbs. on both sides and meets or exceeds all OSHA and ANSI standards.Step Tread: Ribbed. From the Manufacturer The SkyScraper is perfect for high vaulted ceilings, churches, auditoriums, gymnasiums and other home and industrial applications. It is also ideal for working over benches and stadium seating. And because it's portable, the SkyScraper can be used in places where a motorized lift or bulky scaffolding simply can't go. The SkyScraper is made of heavy-wall, 6005-T5 aluminum-the very same material used in aerospace construction. In fact, The SkyScraper is government-rated to hold up to 300 pounds, so it can handle virtually any industrial application. The M17 SkyScraper is an A-frame ladder of 11ft. that adjusts in 1 ft. increments up to a 21 ft. step ladder.

Specs & Other Info

Specification Details
Construction Material High-quality Aluminum
Producer Little Giant Ladder Systems
Dimensions 43 inches width x 139 inches height
Tint Understated Gray
Special Perk Inclusive of FedEx Delivery
Weight of Item 102 lbs
Weight Capacity Can hold up to 300 Pounds
Max. Reachable Height 252 Inches
Manufacturer Little Giant Ladders
Model Number 10121
Product Continuity Currently in production, not retired
Coverage Period 5-Year Warranty
Batteries Needed No

Frequently asked questions

The Little Giant SkyScraper M21 can reach a maximum height of 21 feet.

The SkyScraper M21 has a weight rating of 300 lbs, making it suitable for heavy-duty tasks.

The SkyScraper M21 is made from high-quality, durable aluminum.

The SkyScraper M21 is a type 1A ladder and comes in a neutral gray color.

Similar Products

Top Amazon Reviews

πŸš€ Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The MODEL21 Ladder is well-reviewed by long-time ladder users for its excellent stability and quality build. Many users note that it gives them a sense of safety when working at great heights. However, it is also noted that the ladder can be cumbersome to set up and requires practice to ensure safe use.

Pros

  • πŸ”© Well-built and stable
  • πŸ‘· Provides a sense of safety for work at high ceilings
  • 🏠 Great for houses with vaulted ceilings
  • πŸ‘₯ Can be set up by one person, though easier with multiple people

Cons

  • πŸ‹οΈ Quite heavy and bulky, making handling and transportation difficult
  • πŸ“‹ Requires practice and preparation for safe use
  • πŸ’Ά Quite expensive

Should I Buy It?

Given its solid stability and performance at great heights, the MODEL21 ladder could be a worthwhile investment for professionals who frequently work in high-ceiling environments. However, casual users or those on a tight budget may want to explore other, more affordable options.

    • Sturdy and works great
Size: 17 Ft. Style: Stepladder
I bought this ladder for work and it reaches as high as I want it to. It is a little heavy but it is a nice ladder. I would buy it again if I needed to.
Reviewed in the United States on June 19, 2026 by brad
    • superb, unique ladder.
Size: 21 Ft. Style: Stepladder
this is a great ladder. i have painted a number of houses over the years and am handy with 28' extension ladders. looking over the other customer reviews, i would reinforce / add some comments: * this is a ladder (the 21 footer) for an experienced ladder user, for several reasons. first, you have to be comfortable being that high up, especially when away from a wall such as you would have with an ordinary ladder. second, unless you are 6'6" tall and very very strong you will need another person or some other way to "foot" the ladder to get it up and down. and even then, you need to be able to control the weight as you open and close it. third, it helps to have a good "ladder sense" gained from experience as you think about where / how to place it and move it around and up and down without crashing it or putting undue stress on the joint at the top. so i would say if you have never owned an extension ladder then this would not be a good "starter" ladder. start with a smaller size little giant or a 28' extension ladder. * this is a well built ladder, and once in place is very very stable. i have one of the smaller little giants too. for certain jobs there is just no substitute for this type of ladder that allows one leg to be higher than the other. great for stairs, hillsides, etc. and of course this ladder is FREESTANDING. so if your alternative is to lean an extension ladder against a tree (for example) ... then certainly this type of ladder would be much safer. * to foot the ladder by myself, i filled a large trash container with water and then put the ladder base up against the container bottom. if you try this (outdoors only), of course put the container where you want it first, then fill with water to make it heavy enough to not move. then "walk" the ladder up by lifting the top rung over your head and walking towards the base, a pretty standard technique for extension ladders over 28'. of course if you have a helper let them "foot" it for you instead of using the container. * i had to laugh at the owner manual suggestion that to bring the ladder back down you should (if i read this correctly) tip it over sideways. at full extension, certainly you would need two people to do this, to avoid crashing it, if it is even possible at all given the room you have. i would like to see little giant demonstrate in their video the technique they recommend. * for me, the best way to move the ladder up and down is to use a smaller little giant "inside" the big one, and move each side of the ladder two or three rungs at a time. each time you do this, you will have to readjust the inside ladder position. but it does work, and can be done solo. this way, you can put the ladder up and down at its lowest extension, not the highest. much safer if you ask me. i'm not trying to get in the way of little giants' "official" instructions, just sharing my personal opinion. * all in all, a great ladder, i've seen nothing else like it on the market especially in the 21 foot size. if you're looking at this ladder, likely an ordinary extension ladder just won't work for your situation. i got the big one, despite its being harder to handle, because if you are spending so much anyway on a ladder of this type, may as well get one that goes as high as possible. if you are getting it for just one purpose (like changing light bulbs) rather than for open-ended uses, then i suggest the smallest one that will fit that need would be easiest to handle. ... show more
Reviewed in the United States on November 11, 2013 by Scott Johnston
    • Well-made, well-suited for heights, not a stepladder
Size: 21 Ft. Style: Stepladder
I purchased this ladder for my church, which has lights in a 20' ceiling, above pews, making ladder placement difficult. The ladder is well built and stable, and its variable angle and height makes it well suited for "difficult" placements. I am very pleased with its suitability for my purpose. The way it is constructed, the two legs can be at different heights, which means they will be at different vertical angles, which provides flexibility when going to tight places, or when working off uneven bases (steps, for example). I weigh 250# and with me on the ladder fully extended it's still stable enough to feel safe. Each leg adjusts in 1-step (~12") increments between the minimum of about 11' and the maximum of about 21'. A disadvantage is that the height adjustment should be done while the ladder is horizontal. When fully extended, the ladder becomes difficult to raise to the vertical, but can be raised by one "fit" person -- if there is another person or another way to hold the bottom end on the floor. Another negative is that the latch for the spread between the legs is on the top, and the latches for each leg are ~11' up. It takes practice to learn how to position the ladder, and release the latches to close it, but it can be done without undue difficulty, although you may have to go up/down multiple times. This is not a ladder meant for a novice ladder climber. The height, the size/weight, and the need for practice in manipulating it are all reasons that it should be used by someone who is accustomed to working at height. ... show more
Reviewed in the United States on June 27, 2009 by L. Ross
    • A Beast of a Ladder
Size: 21 Ft. Style: Stepladder
I have 2 other little giant ladders and love them. I needed a giant A-frame ladder to reach lights and hanging heaters that are all about 19-24 feet up. I just had to change some T12's and this ladder worked just as I would expect a little giant ladder to work, perfect! It is very heavy so unfolding it and setting it up took 2 of us without using any type of wall for leverage. It was a little tough due to it giant size and weight but doable and worth it. I was amazed how easy it was to set up and had not problem whatsoever changing the bulbs that were about 19 feet up. It was very stable and I felt very comfortable on it as I changed the bulbs. I really wish I got this a long time ago, I would have saved lots of money on renting scissor lifts. Glad I got it now! Changing bulbs are simple now or work on the heaters if needed. Love it!! ... show more
Reviewed in the United States on April 16, 2019 by Big T.
    • Expensive but worth it
Size: 17 Ft. Style: Stepladder
It’s an expensive ladder but worth every penny. Little Giant makes a great product. Stable when in use and easy to adjust. It’s a BIG ladder so you need two people to carry and set it up. Once on the ladder, I felt super safe and sturdy and I climbed high to reach 3 story windows and load items onto a floor above. The ladder will pay for itself after a couple of more projects. Otherwise I’d have to pay somebody $300 per project to come in and teach the tall areas and windows. ... show more
Reviewed in the United States on March 21, 2025 by Sam
    • Ladder is a pain in the A..:) Also as good as it gets.
Size: 21 Ft. Style: Stepladder
Review Image by Scott Homey
This ladder requires some practice, and review You Tube videos. We did not prepare, or practice, and we likely looked like a comedy act. One time it was folding on its-self, and I had to jump off, only 6 ft off ground. You really have to be prepared and practice bf bringing to customers house. Its Big It's bulky, Almost impossible for 2 people to stand up ladder after extending, The very top will lock, and you wish it wasn't locked, Now someone has to go up there and unlock it. Ladder maybe in an awkward position. We had it in a staircase and on main floor, what a pain in the ass. BUT........ There was no other way on this job. scaffolding would not do it, as recessed were over stairs way high and a giant chandelier in the middle. Little practice will go a long way, especially if your sending employees. Ladder is great quality, and does a great job. folds up pretty small for ez storage. Next time I will be better prepared when I use it. Without this ladder, I don;t know how I could had finished the job. it was 75 recessed change outs, but 6 in the entrance were really high, I said to myself, "If I get the job, I will figure it out" Well, I got the job :) this ladder saved me. ... show more
Reviewed in the United States on January 25, 2020 by Scott Homey
    • A Great Ladder
Size: 17 Ft. Style: Stepladder
Very sturdy and pleased with the quality. It works great and feels secure when two of us have to be on it.
Reviewed in the United States on January 25, 2026 by Mitch
    • Revised: Little Giant is terrible
Size: 21 Ft. Style: Stepladder
When I first bought this ladder, I was happy. It was tall, seem to do the job. But after opening and closing it, perhaps ten times or so, and within the first year of service, both straps broke. I contacted the Little Giant warranty service and went through a nightmare of multiple emails and multiple pictures from multiple angles and of multiple parts. Ultimately, Little Giant wrote me and said this: "Thank you for completing the requested warranty information. After reviewing all the information provided, I have determined that this is not a manufacturing defect. The web strapping is considered to be a wear and tear item and is not covered under the Little Giant Limited 5 yr warranty for the Skyscrapers." Little Giant then offered to send charge me for replacement parts. Pathetic. If you buy this product, understand that Little Giant is very unlikely to provide any post-purchase help, IMHO. ... show more
Reviewed in the United States on August 20, 2023 by Kathleen

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