Cam Buckle vs Ratchet Straps

Which One Do You Actually Need?

Walk into any hardware store or scroll through an online strap range and you’ll see the same two options sitting side by side: cam buckle straps and ratchet straps. They look similar enough at a glance, both are made from strong webbing, both have a buckle, both are designed to hold something down. So why does it matter which one you grab?

It matters more than people think, and picking the wrong one is one of the most common (and most avoidable) mistakes people make when securing a load. Get it wrong and you either end up with a strap that can’t hold enough tension, or one that’s tight enough to crush whatever you’re trying to protect. Let’s clear it up properly.

How a Cam Buckle Strap Actually Works

A cam buckle strap uses a simple spring-loaded cam mechanism. You feed the webbing through the buckle, pull it tight by hand, and the cam locks it in place through friction and tension. There’s no ratcheting mechanism, no leverage, no clicking sound as you crank it down. It’s just you, pulling by hand, until it feels secure.

That simplicity is exactly what makes cam buckle straps so useful. Because you’re tensioning it by hand, there’s a natural ceiling on how tight it can actually get. You physically can’t over-tighten it the way you can with a ratchet, which makes it the go-to choice for anything that doesn’t need brute force to stay put, but does need to be protected from being crushed or damaged. Our 25mm cam buckle straps are a good example of this in practice, light enough to carry a couple in the glovebox, but strong enough for genuine everyday use.

Think about things like moped or mountain bike frames, musical instrument cases, furniture during a move, boxes of stock in the back of a van, or anything with a bit of give to it that doesn’t want to be squeezed within an inch of its life. Cam buckle straps are also popular for softer canvas or tarp applications, where a ratchet’s aggressive tension could actually tear through material rather than hold it down properly.

How a Ratchet Strap Actually Works

A ratchet strap looks similar from a distance, but the mechanism underneath is completely different. Instead of tensioning by hand, you feed the webbing through a ratchet handle and physically pump the handle back and forth, with each pump clicking the mechanism tighter. This gives you serious mechanical advantage, meaning you can generate far more tension than your hands alone could ever manage.

That extra tension is the whole point. Ratchet straps are built for heavy loads that genuinely need to be locked down hard, think furniture on a trailer, machinery, timber, building materials, or anything where a bit of movement during transport could be dangerous rather than just inconvenient. If you’ve ever seen a load shift on the highway, there’s a good chance the culprit was a cam buckle strap being used for a ratchet job, or a ratchet strap that wasn’t tensioned properly.

We stock two widths in the ratchet range, 25mm and 40mm, and the difference between them isn’t just size for the sake of it. The 25mm ratchet strap is a solid all-rounder for moderate loads, general trailer work, and day-to-day securing jobs. Step up to the 40mm ratchet strap and you get a wider webbing surface and a higher working load limit, which matters once you’re dealing with heavier or bulkier cargo where a narrower strap would be working harder than it should.

So Which One Do You Actually Need?

Here’s the simplest way to think about it. If what you’re securing is heavy, rigid, or genuinely dangerous if it shifts, go with a ratchet strap, and size up to the 40mm option if the load is on the larger or heavier side. If what you’re securing is lighter, delicate, or could be damaged by too much pressure, a cam buckle strap is almost always the better call.

A lot of people who tow trailers, move furniture, or haul gear for work end up keeping both types on hand for exactly this reason. Cam buckle straps for the everyday, delicate, or awkwardly shaped stuff, and ratchet straps for anything heavy that genuinely needs to be locked down tight. It’s not really a competition between the two, they’re just built for different jobs, and having both in the vehicle means you’re never reaching for the wrong tool at the worst possible time.

If you’re still not sure which strap suits what you’re carrying, that’s a completely normal question to have, and it’s worth getting right before you’re loading up on the side of the road. Have a think about what you’re actually securing, how much it weighs, and whether it can handle serious tension or needs a gentler hand, and the right strap usually becomes pretty obvious.

What We Stock at King Canvas

If you’re sorting out your strap kit, we carry both types, and the range is deliberately simple rather than overwhelming. Our cam buckle straps come in 25mm, ideal for the everyday, delicate, or awkwardly shaped loads we’ve talked about above. On the ratchet side, we stock both 25mm and 40mm widths, so whether you’re securing a moderate trailer load or something heavier that needs a wider strap and higher working load limit, there’s an option built for it.

Everything in the range is made to handle real Australian conditions, not just sit in a garage looking tough. If you’re building out a proper strap kit for your ute, trailer, or work van, grabbing one of each width covers you for almost everything you’ll come across.