Built to work in very narrow aisles where other rolling ladders can’t
ProStep ultra-compact aluminum rolling ladders have a compact footprint and tight turning radius, opening up the spaces conventional rolling ladders can’t reach – built for warehouses, distribution centers, manufacturing, and MRO. They pair the industry’s largest published platform with an integrated handle that lifts the pivoting casters and locks the rubber-footed base – rolling to rock-solid in one motion.
- Compact. Maneuverable. Unstoppable.
Tight turning radius and compact footprint reach very narrow aisles, corners, and equipment other rolling ladders can’t. - More Room to Work
Large platforms and cantilever options extend reach over equipment and obstructions. - Rock-Solid Stability
Engage the handle — casters lift, rubber-footed base locks, platform stays put.
- OSHA + ANSI Compliant
Built to OSHA 29 CFR 1910.23(e) and ANSI A14.7 — the standards your facility is audited against. - Cost-Effective at Scale
In stock and fleet-priced — deploy across every aisle, bay, line, and MRO area. - Made in the USA
Engineered, manufactured, and supported domestically — shorter lead times, accountable quality.
Compliance Expert
A friendly expert is ready to discuss your project.
Nate Frank
Your friendly stair expert
PRODUCT INFO & SPECIFICATIONS
Technical specs, BIM/CAD Files, Specifications( CSI Spec), Elevation/Plan Views, Environmental/LEED/HPD
In a world dominated by welded, fixed-form units, Prostep takes steps in a new direction.
Compact footprint & tight turning radius
With a tight turning radius and compact footprint, access equipment, corners, and very narrow aisles that other rolling ladders can’t reach. Warehouse floor plans are aisle-constrained; conventional rolling ladders are built for wide-aisle forklift lanes and cannot physically maneuver in tighter classes.
Stability & safety interlock
Lift-and-Lock
The integrated handle lifts the pivoting casters and locks the rubber-footed base — rolling the ladder from rock-solid to rock-solid in one motion. The unit is secured to the floor by the base, not by locking casters. While the casters are lowered, making the unit mobile, the handle safely prevents the unit from being climbed.
CAPABILITY EXTENSION
INDUSTRY’S LARGEST WORK PLATFORM
Choose 6 or 9 sq. ft. of standard workspace, then add a 1′ or 2′ cantilever kit to expand the platform up to 15 sq. ft. and reach over equipment and obstructions.
The range
Two widths, fifteen configurations
Available in 2′ and 3′ widths from 40″ to 120″, with up to 9 sq ft of working platform. Optional 1′ and 2′ cantilever add-ons extend reach over conveyors, equipment, and obstructions where a standard platform won’t go. OSHA 29 CFR 1910.23(e) and ANSI A14.7 compliant.
2′ Wide Platform
6 SKUs · 40″–90″ · 6 sq ft platform
3′ Wide Platform
9 SKUs · 40″–120″ · 9 sq ft platform
Cantilever add-on
Reach over what’s in the way
An optional 1′ or 2′ cantilever extension spans obstructions and reaches over equipment, conveyor lines, or curved surfaces without compromising guardrail protection. Bolt-on and field-installable — reach over an obstruction from an aisle-friendly base position rather than repositioning a larger unit that can’t fit the aisle in the first place.
Dimensions
Specifications
All dimensions in inches; weight in pounds. Toggle platform width below.
2′ Wide Platform
| Model Steps | A Platform Height | B Overall Height | C Working Height | D Base Width | E Base Length | Turning Radius |
|---|---|---|---|---|---|---|
| PS-40 4 Steps | 40″ | 82.5″ | 106″ | 24″ | 67.5″ | 64″ |
| PS-50 5 Steps | 50″ | 92.5″ | 116″ | 24″ | 73.5″ | 70″ |
| PS-60 6 Steps | 60″ | 102.5″ | 126″ | 24″ | 79″ | 76″ |
| PS-70 7 Steps | 70″ | 112.5″ | 136″ | 24″ | 85″ | 81″ |
| PS-80 8 Steps | 80″ | 122.5″ | 146″ | 24″ | 90.5″ | 87″ |
| PS-90 9 Steps | 90″ | 132.5″ | 156″ | 24″ | 90.5″ | 93″ |
3′ Wide Platform
| Model Steps | A Platform Height | B Overall Height | C Working Height | D Base Width | E Base Length | Turning Radius |
|---|---|---|---|---|---|---|
| PS-40 4 Steps | 40″ | 82.5″ | 106″ | 36″ | 67.5″ | 64″ |
| PS-50 5 Steps | 50″ | 92.5″ | 116″ | 36″ | 73.5″ | 70″ |
| PS-60 6 Steps | 60″ | 102.5″ | 126″ | 36″ | 79″ | 76″ |
| PS-70 7 Steps | 70″ | 112.5″ | 136″ | 36″ | 85″ | 81″ |
| PS-80 8 Steps | 80″ | 122.5″ | 146″ | 36″ | 90.5″ | 87″ |
| PS-90 9 Steps | 90″ | 132.5″ | 156″ | 36″ | 90.5″ | 93″ |
| PS-100 10 Steps | 100″ | 142.5″ | 166″ | 36″ | 102″ | 99″ |
| PS-110 11 Steps | 110″ | 152.5″ | 176″ | 36″ | 108″ | 104″ |
| PS-120 12 Steps | 120″ | 162.5″ | 186″ | 36″ | 114″ | 110″ |
Aisle-fit finder
Find your size
No guessing whether the unit will physically fit.
| Model | HeightPlatform | 360°Turning radius | VNA Very Narrow Aisle 5–6 ft |
Narrow Aisle8–10 ft | Wide Aisle11–13 ft |
|---|---|---|---|---|---|
 PS-40 | 40″ | 64″ (5.3 ft) | ✓ | ✓ | ✓ |
 PS-50 | 50″ | 70″ (5.8 ft) | ~ | ✓ | ✓ |
 PS-60 | 60″ | 76″ (6.3 ft) | — | ✓ | ✓ |
 PS-70 | 70″ | 81″ (6.8 ft) | — | ✓ | ✓ |
 PS-80 | 80″ | 87″ (7.3 ft) | — | ✓ | ✓ |
 PS-90 | 90″ | 93″ (7.7 ft) | — | ✓ | ✓ |
 PS-100 | 100″ | 99″ (8.2 ft) | — | ~ | ✓ |
 PS-110 | 110″ | 104″ (8.7 ft) | — | ~ | ✓ |
 PS-120 | 120″ | 110″ (9.1 ft) | — | ~ | ✓ |
Questions
FAQ
Frequently Asked Questions
What is ProStep?
ProStep is an ultra-duty aluminum rolling ladder built for tight aisles. Nine platform heights are offered — PS-40 through PS-120, in 10-inch increments from 40 in. to 120 in. — with 2-ft or 3-ft platform widths and a bolt-on cantilever kit for reaching over obstructions. The system replaces the RFQ-only mobile platforms that warehouses and data centers have historically had to custom-order for tight-aisle work.
No. When the Lift-and-Lock handle is engaged, the casters lift roughly two inches off the floor and the rubber-footed base plants on the ground. The ladder is fully supported by the base, not the wheels, while a worker is on the platform. About 30 pounds of pull on the handle releases the largest unit for repositioning.
No. A caster lock is not required because the Lift-and-Lock base creates enough friction with its rubber pads that the unit stays planted under load. The friction pads carry the operator’s weight, not the casters.
Yes. ProStep is a four-caster rolling ladder with the Lift-and-Lock base. The design lets one person move a large unit without lifting an end of it — the older two-wheel tilt-and-roll pattern limited how large a rolling ladder could practically be.
Every ProStep model is rated for 1,000 lb, covering the operator plus tools and materials. The rating is consistent across all nine heights and both platform widths.
Two options: 6 sq ft (2-ft platform width) or 9 sq ft (3-ft platform width).
– Very narrow aisle (5–6 ft): PS-40 fits. PS-50 fits in most 6-ft aisles.
– Narrow aisle (8–10 ft): PS-40 through PS-90 fit. PS-100 and PS-110 fit tighter narrow aisles with clearance planning.
– Wide aisle (11–13 ft and up): All nine models fit.
Verify aisle width against the model’s 360° turning radius before ordering.
ProStep is engineered to OSHA 29 CFR 1910.23(e) for mobile ladder stands and platforms and to ANSI A14.7. Compliance documentation is available from your Regional Account Manager for engineering review or specification packages.
Yes. ProStep is manufactured in the USA at the SixAxis facility in South Carolina.
ProStep is bolt-together aluminum. The frame, platform, steps, and cantilever kits are all aluminum for corrosion resistance and lighter deadweight than similar steel units.
ProStep ships flat-packed and bolts together in the field. Standard hand tools complete the assembly. Cantilever kits attach to a fully assembled base without disassembling the ladder.
Yes. Bolt-together construction lets a facility swap a cantilever kit, change platform width, or replace individual components without discarding the ladder. Field-replaceable parts are stocked.
ProStep is sold through our authorized distributor network. Regional Account Managers qualify the request, size the correct model for the aisle, and route the order to a distributor for quoting, delivery, and post-install support. Contact ErectaStep at 843-485-0065 to be connected to the right distributor for your location.
The cantilever kit extends the working reach past the platform edge — 1 ft or 2 ft — so workers can access conveyors, racking, or equipment they cannot roll the ladder underneath. Kits bolt on and are field-installable.
Yes. Every model ships with the guardrail system required for OSHA 29 CFR 1910.23(e) and ANSI A14.7 compliance, including handrails, midrails, and toeboards on the top platform.
Related Products
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RollaStep's <strong>MP Series</strong> has the stability of a fixed work platform in a highly mobile rolling stair unit
Self-Leveling Ladders
RollaStep's <strong>G-Series</strong> various height adjustability allow operators to work at the correct height for the job
Cantilever Ladders
RollaStep's <strong>C Series</strong> gets operators on or above railcars, tank trucks and tall industrial machinery
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Fixed Ladder
Our fixed ladders, with our prefabricated modular design, adapt to your facility’s needs, providing safe access for inspections, maintenance, or emergency situations without the need for custom fabrication.
Ship Ladder
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What People are Saying.
Very responsive. This product is easy to set up, move, and change to a different configuration if needed… stability, interchangeable, light weight.
Chris J. , MarkWest Liberty Midstream
Our rep was the most responsive salesman I have ever dealt with. Standard model could be modified to meet my application. Costs less than I could have it designed for. Costs less than I could have it built for. Easy installation.
Project Manager, International Paper
Uncomplicated orders! Ordering is easy! Our orders are always delivered on time.
Purchasing Lead, Poet Design & Construction HQ
Good construction and very reliable. Our sales rep was responsive with my doubts and answered all of my questions.
M. Cruz, Bristol-Myers Squibb Mfg Company
Very responsive, quick to return email… Prompt service. Product is easy to install. We can install on several different wall systems.
M. Ozuna, Halvorson Cont. Group
Future orders will be coming for other products because of performance. Customer service worked very closely with our customer to fulfill your needs. We purchased for our customer…. safety factor was very important.
D. Logsdon, Choctaw Kaul Dist – Detroit
Quick delivery, already finished, easy to install, good customer support, and a lower-cost alternative to shop-fabricated structures.
, MOP Terminals
I really like the construction, the easy install, and bolt on plate that comes with the kit. I purchased a total of 100 safety swing gates on two occasions and each time the gates were delivered ahead of schedule. The quality of your product assured that we had safety on the top of our list!
C. Dovel, Chesapeake Mechanical & Coatings
Ease of install, fit, finish and universal application. Our sales rep was very responsive to our needs. Anyone can see how easy compliance could be with this product.
D. Peace, Silver Eagle Refinery Inc.
The product is already on site and ready for assembly. I cannot move this fast with the on-site maintenance manpower. Fantastic job! We have several ErectaSteps already on site. The quality, ease of assembly, and flexibility are all great benefits of this crossover.
J. Hilgendorf, Nustar Logistics, LP
The product added improved safety to my operation, does not take up much room and makes the operators line of sight a lot better. With the area that this product is being used in my facility, the overall length was going to be an issue having the version with steps on it. So, I ordered ours with a ladder instead of the steps, and it worked out perfectly.
L. Lehman, Energy Solutions
Your product looked superior to other safety gates, plus the amount of opening adjustments. I purchased 10 gates. After assembling the first one, it was simple for the other 9.
J. Sudderth, King Steel Inc.
Outstanding delivery time. If it wasn’t in stock for immediate delivery, I would have gone to another supplier. ErectaStep had the item ready to go. This product improves safety for my staff, cutting down their time moving around the yard.
S. Daljeet, Yellowline Asphalt Products Ltd
I would recommend this product as it performs very well for the purpose for which it was purchased. The design worked very well for the rail cars it was purchased for, with simple accessibility, ease of movement and product strength.
B. Smith, California Steel Industries, Inc.
Very responsive. I went to the website, sent an email and received a response with in the hour, plus good follow up after purchase. Quick shipping, great price, very versatile well built product.
R. Nelson, Weyerhaeuser NR Company
They were very helpful in helping us get what we needed.They also made phone calls to confirm the order was right and what we needed. Cost is right.Your people are easy to work with. Saves our insulated piping, safer for our personnel, easier access to our inner tanks. High quality, easy construction, and the finished product makes our tank farm look good.
G. Elsenpeter, CHS Inc.
Quickly from design to fabrication and finally delivered. Allows safer, easier access to our food trucks for service needs. Easy to transport and set in place. There is also a huge amount of work space inside the basket. Key benefits for us were Safety! Sound Structure! All aluminum!
R. Freeman, Disney Worldwide Services, Inc.
The ease of installing our new universal safety gates, saved us time and money, which time is essential when dealing with safety. The univeral safety gate swings in both directions, and it can be mounted easily to almost anything. I really appreciate that we can inventory one gate for all services at our facility.
B. Rodriguez, Sinclair Wyoming Refining Company
Great easy to read shop drawings, aluminum construction and OSHA Certified. Shipped immediately. The product went together well and was a perfect fit.
B. Bruso, Miller Bros. Construction, Inc.
Products were delivered earlier than estimated date. Our sales rep and the engineering staff has always been quick to respond to all of our requests. I would recommend all of your modular equipment.
J. Mesclier, The Boeing Company
Our sales rep was actually on site prior to place the order. Very good impression! YellowGate is a major player in this market. With the ease of installation, good quality, and competitive prices, I would definitely buy again.
D. Marian, The International Group
Our crossover stair was expedited as per our request…Our salesperson worked with your inside sales and got it thru customs quickly…great service…great product. The product is flexibility, looks good, solid, feels good, safe.
J. Sealey, London Hospital Linen Service
A custom order we designed at Boeing with assistance of ErectaStep. This TR Series fits the need of our mechanics, can be used in different areas, easy to move and use. The product is well worth the money spent and good quality to last for years.
A. Pederson, The Boeing Company
YellowGate is a company with great service, a quality product, safety aspects at a good price.
J. Blair, Motion Industries
This is my second purchase within 6 weeks. Very sturdy, easy to install and the ErectaStep rep was very responsive.
J. Sealey, London Hospital Linen Service
“Everything was fast, efficient from the time I ordered it until the time I received the RollaStep. Our representative was very friendly, answered all of my questions promptly and was very knowledgeable. The product works great in our warehouse, increasing safety, manageability and cost effectiveness. “
M. Jeirles, Appalachian Drilling Services, Inc.
Delivery was extremely fast. Our sales rep was very courteous and helpful. With the ease of installation and cost savings of a complete unit, plus its versatility (left or right) completion (already painted) and lightweight make a YellowGate the simple choice. We will no longer have our safety gates fabricated. We will purchase these gates for all future installations.
D. Brimmer, Lucite International
Your range of products is very useful and high quality that is easy to use, easy to install and uninstall, and easy to transport because can split to part by part. I would recommended your ErectaStep product because we can add more parts to change the configuration, height and wide compared with other products.
A.M. Zanggi, OGCF Engineering (M) SDN BHD
We had a great experience with your company. Thanks for all your support!
T. Lippert, A3IM – Corporate
Delivered as scheduled. Able to meet more client needs with stock in hand is very handy. Easy product to handle, and a very important product for the oil and gas industry. Very satisfied.
G.C. Mohan, FlexiFlo Corp
Good product that was delivered on time. The platform is light weight, easy to assemble and disassemble, and never needs painting.
R. Pegram, Colonial Pipeline Company
Customer service and sales worked together to meet our invoice and payment needs. It was our first time doing business, and they made sure order went through without any delays. Items arrived much quicker than I anticipated.
D. Henn, Progress Rail Services
No negatives all positive. Sales rep was accurate, knowledgable and to the point. I would recommend it to anyone looking for a safety gate. It was installed by our own staff easily and quickly without any mishaps.
S. Perry, Old Castle Retail
I am saving about 3 weeks fab time and about $5,000. I’m using the ErectaStep product to create a cost effective solution vs a custom fabricated product. Quick shipment, easy installation, and quality product. Sales folks were very accommodating and responsive making me feel very comfortable and as if I was a partner.
Landon, SPX Flow Technology
My salesman was excellent. he got back with me very quickly on all my requests and was very informative. My MP Series RollaStep was excellent quality, very lightweight and stable. We are safer in the jobs we used to do before we bought this product.
B. Shreffler, Nucor Steel Kankakee
Top notch, simple easy process getting order placed. The purchase experience from initial contact with sales to delivery at one of our remote sites was smooth and without effort. Great communication on status of order until delivery. Packaged very nicely with everything you need.
A. Steiner, Bureau of Reclamation
Our rep was fun to talk to and was very helpful. Easy to work with, no pressure and our rep gave us names of other customers that would be willing to show us the product. We plan to use it daily in our truck bays to help when unloading coils. This will keep the truck drivers untarping their loads much safer.
Lean Specialist, Material Manufacturer
Good quality product, safe, easy to use, easy to maneuver, and great customer service.
B. Outlaw, VSE Corporation
Incredibly fast. We had an emergency need for a customer, so we picked one up, in Andrews, the same day. Our sales rep was very helpful. The customer is very appreciative of the fast service, when they had an emergency need for the product. They were very pleased to be able to get the gate the same day.
P. Webster, Dillon Supply
Overall the product is durable and exceeds in performance. Installation was simple. Product was delivered within 2 weeks. There were three different orders and one was during the holidays. All were delivered in a sufficient timeframe.
M. Shultz, Gudgel Yancey Roofing
Our sales rep was our super hero! We call him Captain America… he’s great! It took longer for us to issue the PO than it did to get the product! Thanks again!
T. McCrery, L-3 Communications
Yes for simplicity, expedited delivery, and when we can help our client conform to safety regs, everyone wins! It is always a pleasure working with your staff. I think they deserve a paid weekend trip to Disney! Just Sayin!
L. Broecke, SPEC (Sarnia) Ltd.
Overall the product is durable and exceeds in performance. Installation was simple. Product was delivered within 2 weeks. There were three different orders and one was during the holidays. All were delivered in a sufficient timeframe.
M. Shultz, Gudgel Yancey Roofing
Very responsive. All I ever need to do is email, and my orders are placed and shipped with no hassle, even though we are in Canada. Your one stop for safety and railcar needs.
T. Wolfe, Nalco Canada Co.
Product was delivered within a week. Good quality that serves my need. I would recommend this product for cost and ease of installation.
B. McCumbers, Georgia-Pacific Passport
Our sales rep was very responsive. Communication flowed well. They had representation on site within a matter of a day or two prior to placing the order. Questions and concerns were answered in a timely fashion.
J. Schroeder, Hess Corporation
Very easy to work with and install. Product arrived early than expected which helped out a lot. We were able to get installed on a down day.
J. Rybak, Worthington Industries
High Quality. We liked the easy assembly, quality, customer service and price.
A. Kluever-Jewkes, Fluor Industrial Services
Standard modules allow for easy design. Very good. Our sales rep was on top of all email questions….Great communication, quick invoicing.
C. Mueller, P&G Manufacturing Co.
Customer service went above and beyond. Needed something that fit in a specific location and something that would be corrosion resistant… Reduces our need to replace a chain every time we enter the production floor.
J. Bagley, Compass Minerals
Cost effective. Looks good. Easy transaction. Quick delivery. Easy to install.
D. Brye, Gundersen Health System
The whole experience with ErectaStep start to finish has been amazing. Very responsive. There were communications issues on my end and they were diligent in making sure I was taken care of by other means because they hadn’t heard from me. Excellent customer service, fantastic product, easy to use and everything I needed to do the job was there.
R. Newton, Clark Public Utilities
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