Simply the different profiles/design of the log…
Quarter log siding is 1-3/8 inches thick and has a slightly rounded face, giving it the appearance of a quarter log. It’s the most economical version at achieving a natural log home look!
Half log siding is 2-1/2 inches thick and has a well rounded face, giving it the appearance of a half log. For the true log home look without the full log price!
Both quarter log & half log are available in widths of 6 and 8 inches in smooth or hand-hewn surface.
Premier log siding is 2-7/8 inches thick (after hewn) and has a deep log profile with a narrower width tongue. It is available in widths of 8 and 10 inches in hand-hewn only. For a deeper, richer upscale look!