Slit518
Adventurer
But Andre was nonetheless a human.
I like that medium size goes to 8 ft to account for tall humans. It also establishes that giants - including goliaths - should be taller than 8 foot and have the bulk to match - giants arent just tall humans ...
Goliaths are supposed to be on the tall side of Medium, bordering Large. So say large beings at 9', they are supposed to be 7-8 1/2' tall. 300-500 pounds. That off the top of my head and not actually looking at the book.
Since most average Medium races don't go above 6'6" on normal, you can see why the Goliath has a bit of extra bulk. However, I feel they should of given them the ability to wield slightly larger weapons, aka one die-grade higher than normal. So for example a d8 Longsword becomes d10 when one-handed.