Steady on every climb. Home every night.
Award-Winning Ladder SafetyBuilders. No hesitation. No ladder wobble. No worry.
From framing to finishing, builders climb to reach the work and move tools all day. Lock Jaw secures your ladder to the gutter, helping reduce unwanted ladder movement so you can keep your attention on the build.
The Lock Jaw
Ladder Grip
Lock your ladder to the gutter. Get the stability you need to climb, work and focus on the job.
- Fast shipping Australia-wide
- 30-day money-back guarantee
- Locks onto the gutter in 5 seconds · helps prevent falls
30-Day Money-back Guarantee
Try it on the job. If it's not the steadiest your ladder's ever been, send it back.
Ships Australia-Wide
Fast domestic dispatch - ready for your next job, not weeks from now.
Award-Winning Design
Backed by 18+ international industry awards and years of proven use worldwide.
Builder FAQs
Will it damage my customer's gutters?
Lock Jaw uses rubber-padded clamps on all contact points, designed to grip without scratching, denting or distorting aluminium, steel or copper gutters when correctly fitted. Not for use on plastic or vinyl gutters.
What gutter sizes does it fit?
Lock Jaw fits the vast majority of standard residential and commercial gutters - typically 4" to 6" profiles.
Does it work on steep-pitch roofs?
Yes. Lock Jaw was designed specifically for steep-pitch roof work, where lateral ladder movement is most dangerous. When correctly fitted, the clamping mechanism is designed to help reduce lateral ladder movement.
Can I move it quickly between placements?
Absolutely. The quick-release design lets you unclamp, reposition and re-secure in under 10 seconds - ideal when you're working around the perimeter repeatedly.
What ladders is it compatible with?
It fits ladder rails up to approximately 2" (50 mm) wide and works with K-style and traditional gutters. It is not designed for fixed metal leaf guards.
How fast is shipping?
Orders ship quickly from within Australia, so you're protected on the very next job - not weeks from now.
"The Lock Jaw Ladder Grip does exactly what it is designed to do - enhance ladder safety. It is an excellent product for both homeowners and contractors looking to improve safety when on a ladder."Rich P. · Verified buyer
"What a brilliant idea - makes getting up and down the ladder much safer."
"Great device for keeping the ladder from slipping. So good I bought two for extra strength. So simple and easy to use - just Aussie brilliance."
"Lock Jaw is such a great added safety item. I use it every time I set up the ladder."
Secure in
Three Steps
Position
Place the ladder against the gutter and position Lock Jaw over the gutter, with the bar behind the ladder rail.
Clamp
Open the handle, position the jaws firmly under the gutter lip, then push the handle down until it clicks securely into place.
Secure
Adjust the bar assembly until it sits firmly against the ladder rail. Check that Lock Jaw is fully clamped and the ladder is secure.
Lock the Ladder to the
Gutter Itself
A spotter gets tired. A strap can work loose. Lock Jaw clamps straight onto the gutter in about five seconds with no tools, helping reduce unwanted ladder movement while you work.
WHS Compliance
for Builders
Safe Work Australia guidance recommends that workplace ladders are positioned on a solid, stable surface and secured to prevent slipping or displacement. Lock Jaw is designed to help secure your ladder at the gutter, adding stability while you work at height.
You're Building Up.
We've Got the Ladder.
Lock Jaw doesn't do the building. You do. It helps reduce unwanted ladder movement, so you can focus on the work.
- The ladder slides on the gutter edge
- Brace it with your body - or tie up a spotter
- One hand for the work, one for the ladder
- Every climb is a gamble
- Clamped to the gutter to help reduce unwanted movement
- Tool-free setup in about five seconds
- Rubber-padded gutter contact points
- Greater stability and confidence while you work
Built for the Demands
of Building Work
Residential Building
Clamps to standard 4–6" gutters on homes and townhouses. Works on aluminium, steel and copper. Not for plastic or vinyl gutters.
Renovation and Repair
For repeated ladder moves around a build or renovation job, Lock Jaw offers quick, tool-free setup at each placement.
Built for
the Way Builders Work
Meets WHS Secure-the-Ladder Guidance
WHS guidance calls for ladders to be secured against displacement - Lock Jaw helps you do it at the gutter.
Works in 5 Seconds
Lock Jaw clamps to the gutter in seconds, giving you a quick, simple setup with no tools.
No Bracing Needed
Lock Jaw locks your ladder to the gutter, so you are not using your body to steady it all day.
Gutter Protection
Rubber-padded clamps are designed to grip securely without scratching or damaging the gutter when correctly fitted.
Works on Most Ladders
Designed to work with the ladders building crews use every day.
Less Crew Time Wasted
Get your ladder secured quickly so your crew can spend more time doing the job.
A Ladder That Shifts Is
A Fall Waiting to Happen
An unsecured ladder can slip out from under you and cause a serious fall.
Ladders Kick Out
Slippery gutters can cause ladders to slide
Having someone hold the ladder costs time and money
You've Got the Build.
We've Got the Ladder.
Give every build a steadier ladder setup. Clamp Lock Jaw to the gutter in about five seconds to help reduce unwanted movement and work with greater stability and confidence.
Buy Now - Ships Australia-Wide