I would guess this is 5" or 6" lap
Q
These ones look bigger, maybe 4", 8", 12", 4", 8", 12", etc.
Here's another one that appears to have three different widths of horizontal lap siding. I would guess 8", 6", (3) 4", 6", 8", 6", (3) 4", etc.
8", 8", 4", 8", 8", 4"
This is all the same width, but I like the look of really wide siding like this also.
Maybe 8, 12, 8, 8, 4, 8, 12...
Hardie Lap has four boards with a 7 or 8" exposure and one board with 4" exposure pattern.
3 different widths of Hardie Lap. Looks like 8", 6", 4", 4", 8", 6", 4", 4" etc.
I would guess this is 5" or 6" lap
Q