I tried to hollow it out as much as possible to cut down on weight, while still making sure it’s overbuilt enough to support the corner of a 2000 kg pickup truck. I’m planning to use 98 × 48 mm lumber.
Open to suggestions on how to improve it. My only concern is the stop block - it’s not any higher than the previous steps. I could make the tire sit deeper in that “well,” but that would reduce the overall height.
Most likely for performing maintainence on a vehicle without having to lift it with a jack. For simpler stuff like changing oil it can be easier to just use a couple of ramps instead of a jack and jackstands.