Cleon may have been accounting for what is lost in the whittling, much like the stone golem's raw materials weight 1,000 pounds more to account for what's lost in the chiseling.
Yeah, they're rather unexciting.
I suppose if we wanted to jazz 'em up a bit, we could give 'em track as a bonus feat and a racial bonus on Survival checks.
I'm fine with just making 'em Small iron golems and moving on, though.
Track and Survival bonus sounds good.
Since they stand in the fire, perhaps they can do some fire damage also for a time afterwards? They should be immune to fire, too, I guess.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.