AmazonCommercial Multi Purpose Waterproof Poly Tarp, 12 x 25 ft, 16 Mil Thick

What to check before you buy

Working load limit, not break strength

The WLL is the number that matters. Break strength is the point of failure in a lab; the WLL is what the assembly is rated to hold in service, typically a third of break strength.

Assembly rating is the weakest part

A strap is only rated as high as its lowest-rated component - webbing, ratchet or end fitting. Replacing a hook with a stronger one does not raise the assembly rating.

Webbing condition

Cuts, abrasion, chemical damage and UV degradation all remove capacity that is not visible as a number. Damaged webbing is removed from service, not derated.

Number of tie-downs

Cargo securement rules are based on aggregate working load limit relative to cargo weight, plus minimum counts by cargo length - not on what looks tight enough.

How it compares to other cargo control we review

List prices recorded when this page was last updated; Amazon pricing moves frequently, so check the live listing. Browse the full cargo control range, or see all jobsite equipment.

Frequently asked questions

What is the difference between working load limit and break strength?

Break strength is the force at which a component fails under test. Working load limit is the maximum force it is rated to carry in normal use - conventionally one third of break strength. Always secure to the WLL.

How many straps do I need?

Under the US cargo securement rules the aggregate working load limit of the tie-downs must be at least half the weight of the cargo, with minimum counts based on cargo length and weight. Check the specific article rules for your load.

When should a ratchet strap be retired?

Remove any strap from service if the webbing has cuts, holes, burns, chemical damage or heavy abrasion, or if the ratchet or end fittings are cracked, bent or corroded. Damaged straps are replaced, not repaired.

Do ratchet straps lose strength over time?

Yes. UV exposure degrades polyester webbing gradually, and the loss is not visible as a number. Straps stored outdoors or used in constant sunlight should be inspected more aggressively and replaced sooner.

Are bungee cords a substitute for ratchet straps?

No. Elastic cords hold light items in place but have no meaningful working load limit for securement and can release stored energy toward the user. They are not cargo securement devices.

Where do the specifications on this page come from?

They are taken from the manufacturer's published listing. WC Safety does not laboratory-test products, and nothing is claimed here that the manufacturer does not state.

Does WC Safety sell this product?

No. WC Safety is an independent review site and an Amazon Associate. Purchases happen on Amazon, and we earn a commission on qualifying purchases at no extra cost to you.

How was the rating on this page determined?

The score shown is the live Amazon customer rating captured at the time of review. It reflects buyer feedback, not a WC Safety test result.