Austin1
Addicted to ArboristSite
well said I find the same thing I stop on the Hi Way self way scales. I also use smaller and shorter rounds to fill up the space around the wheel wells. With a topper on a truck or side or side stakes I could bring back a full cord once split and stacked. I should note I am talking dead dry pine very light. I did load up some Green Poplar once that was heavy! and it was just a level box in my buddy's F250 actually made it squat somewhat.Absolutely positively there will be more wood per unit volume when the wood is unsplit. Nobody ever packs it as tight as Mother Nature my dad always said. I did the experiment with my big truck back in the day. I know there was more when unsplit because I had the truck weighed with split and with unsplit wood on it several times. I kept the weigh slips in the glove box in case I was pulled over by the weight cops. They loved to hassle us firewood and log haulers.
If I remember correctly I was hauling around 21K for mixed hardwoods unsplit and split it was just under 19K. I was legal for weight with split wood, but with blocks I was over so I always fretted when hauling unsplit wood that I would get weighed.
The truck bed was 16' long and I could stack 10 rows of 18" firewood to the tail perfectly. Also the sides were exactly 4' high and so I knew exactly the height of the rack. I hauled many, many loads of unsplit blocks and after splitting I could get at least 11 face cords out of the same load, and sometimes it was as high as 12-13. Big blocks from monster trees can be packed really tight on the truck. Split them up and the volume grows a lot. Small rounds do not puff up as much because the number of pieces does not climb like the big chunks did.
Do the experiment yourself. Take an unsplit load to a grain mill, gravel pit or a trucking company and pay a few $$$ to get a weight. Then fill the truck with the same species of wood split. Get a weight and you will answer the question beyond all doubt. Play fair and be sure to fill the nooks and crannies of the truck equally well for both loads. My truck was a flat bed stake rack so that was not an issue for me. It was a big box.