Werner PK70-1 Ladder Leveler with 2-Base Unit Attachments

The Verdict

If you’ve ever set up an extension ladder on a sloped driveway, a flower bed, or uneven dirt and felt that sickening wobble as you climbed, you already know the problem. The Werner PK70-1 attacks that problem head-on with a pair of heavy-duty leveling feet that bolt onto your ladder’s rails. At 4.6 stars from 229 Amazon ratings, it’s clearly doing something right. Here’s the honest breakdown.

What’s in the Box

You get two complete base unit attachments, each with the leveling foot, the mounting bracket, and the spring-pin locking mechanism. The units are pre-assembled — you just slide them onto the bottom of your ladder rails. Each base unit weighs about 3 pounds, and the steel construction is genuinely beefy. As shown in the product image, the foot extends outward from the rail, giving you a wider stance than the ladder alone would provide.

Performance and Build Quality

The core mechanism is a telescoping leg that extends up to 12 inches beyond the fixed rail bottom. A spring-loaded pin drops into pre-drilled holes at 1-inch intervals, locking the foot at the height you need. For a 28-foot or larger extension ladder, this transforms it from a “hope the ground is flat” tool into something you can confidently set up on a hillside.

In real use, the leveler performed exactly as advertised. I tested it on a 3-to-1 slope in a backyard, and the ladder stayed rock-solid at full extension. The wide foot plate (roughly 4x4 inches) prevents sinking into soft ground — a common failure point with cheaper levelers. The 300-pound rated capacity means it handles a climber plus tools and materials without strain.

One detail that stands out: the mounting bracket is designed to fit Werner’s own rail width, which is 1.63 inches. That’s the standard for most Werner extension ladders, but it won’t fit narrower or wider rails from other brands. Check your ladder’s spec before ordering.

What Buyers Consistently Praise

The reviews echo my testing experience. One buyer wrote, “This turned my 32-foot ladder into a tool I actually trust on uneven ground. The stability difference is night and day.” Another noted, “Installation took under five minutes per side. The pin mechanism is simple but effective.” The most common praise centers on the build quality — buyers repeatedly describe it as “heavy-duty” and “overbuilt,” which is exactly what you want when you’re 20 feet in the air.

Where It Falls Short

The honest downsides matter here. First, the added weight is real. Each 3-pound base unit makes a long extension ladder noticeably heavier — if you’re hauling it up stairs or over fences solo, you’ll feel it. Second, the pin adjustment requires both hands and decent alignment. With thick winter gloves on, it’s a two-attempt operation more often than not. Finally, the 1-inch adjustment increments mean you might land at 11 inches when you need 11.5 — you’ll need to find a flat spot or a shim for perfect precision.

Who Should Buy This

This is for the homeowner or contractor who works on a property with actual terrain — not a flat concrete slab. If you’ve ever had a ladder skid sideways on wet grass or rock on a sloped driveway, this solves that. It’s also ideal for roofers, gutter cleaners, and painters who regularly set up on uneven ground. Skip it if you only use your ladder on flat, hard surfaces — the added weight and cost aren’t justified.

Frequently Asked Questions

Will this fit my Werner ladder? It fits Werner extension ladders with 1.63-inch rails. Measure the width of your ladder’s rail before purchasing. It will not fit ladders with wider or narrower rails.

Does it work on steep slopes? The 12-inch adjustment per leg handles slopes up to about 15 degrees on a typical 28-foot ladder. Beyond that, you need a different approach — this isn’t a substitute for proper ladder setup on extreme terrain.

Can I leave it installed permanently? Yes, but it adds weight. If you’re storing the ladder in a garage or on a truck rack, the extra 6 pounds total won’t matter. If you’re carrying it frequently, you’ll probably want to remove the bases when not needed.

The Verdict

Buy it if you work on uneven ground and want your ladder to stop being the most dangerous tool on the job site. Skip it if you only set up on flat, prepared surfaces.

The Werner PK70-1 is a well-engineered solution to a real problem. It’s not perfect — the weight and glove-fiddly pins are genuine annoyances — but the stability it provides is worth the tradeoff. At 4.6/5 stars, this is one of those rare accessories that makes you wonder why you didn’t buy it years ago.

Rating: 4.6/5

Where to Buy

👉 Check Price on Amazon →

We earn a small commission at no extra cost to you — this helps fund more honest reviews.

Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.