Willl said:
Ya, I was curious about that also. Wouldn't a solid post be better ?
Not necessarily. I don't recall if I posted this info on this site but I have on the "sister site".
I used to haul material for a large pole barn builder that also had a franchise to build and sell "Permacolumns". You can look them up on the web.
Basically the top of the Permacolumn has a "U" shaped bracket that the hand laminated 2xX column material is bolted to. It was my understanding that the engineering studies showed that this method was as strong or stronger than "standard methods".
The company had a batch plant set up with controlled conditions to manufacture the columns. In order to balance out the work load, the workers also laminated the three 2xX boards with air nailers and fastened them to the columns in a big jig to maintain a straight column. They then packaged everything together with blocking and banding for shipment.
They could be a "bear" to load and unload safely along with the other materials typical to a job.
When they first started to construct with those columns, I mostly set them with the truck mounted crane. One day, with no personel on the jobsite, I set them on the ground, too far away I later found out. Seemed the builders were setting them by hand, ouch!
Excuse the long post but now to my observation. I would think that the shorter columns would be easier to set and to get vertical with no wind load to fret over.