Nice video! That sounds like a great idea for your climate, where the planks will also shade the ground but allow growing space.
Where I am, I am always trying to increase heat and dryness (except 2 months, when I argue with myself as to whether Ohio-raised plants can stand a month without a watering in 5% OM soils). So, to add heat and space I use stepping stones as paths and bed dividers. I do have to awkwardly balance on the stones as I harvest, but I need the exercise. Also, all though I haven't needed it yet, I have considered, if this were a farm where I needed to carry heavy or large things, but have no wheelbarrow space, that I would create zip-lines across the yard and then just clip the heavy/bulky stuff on and give it a push!