The most common “large” ratchet straps available at many retail outlets are 2” nylon, supposedly having 3300 lb. WL rating, 10k lb. BS. I’ve snapped new ones at what I think is well under even the 3300 lbs. So for helping secure machine tools in trailers, my application, I got 4 of the 4” polyester ones. I’m not hyping any source but mine came from “USCC” and shipping on 3 or more was free (these weigh 21 lbs. ea.). I got the end-option of chain and chain hook because that’s the most versatile for how I might attach them in various situations. So, brand X on the left, new ones on right. In securing equipment in trailers, I tend to use chains near the base and ratchet straps higher up.