One more thing we must look on is instead of looking what the weapon does for damage and such things, value the prize after the materials and time invested in the making of the weapon (quality).
The prizing of the weapon is also based on it\'s availability and the cost of the materials are based upon it\'s rarity and since we live in a underground world it\'s not the same as on the surface.
The first thing we must think of is that tree is a extremly rare material and it\'s not used in common things and I would say never in such a large thing as a house.
The second is that there are a greater availibility for metals and a greater range of them.
Therefore Iron and maybe steel if the civilization is that advanced, overall their metal working and stonecutting abilities should be pretty advanced, but woodworkings would be nearly non-existant, carriages would if created in iron be too heavy to pull and therefore there aren\'t much of those either.
Axes would probably only exist in the executioner axe style, and those axes are too heavy and unbalanced (for fighting) to be used as any other thing than execution axes.
The axe was probably invented for treecuting and because of the wood involved in making it, it would never be be economically defendable to produce them and if you should make them completly out of iron or steel they would be very heavy and unbalanced, making them suitable for execution and the little treecutting that exist.
The highest job a gardener could have would probably be just treecaring, to be given this job you would probably be considered as a thrustworthy and decent character and you would be managing the plantation of new tree and the amount who would be cut down.
Meat would probably also be pretty unusal and only be scavenged from animals and monsters in the stonelabyrinth since domesticated animals take too much place that could be used as fields.
Potatoes would probably be the most planted crop since they can feed a great many people and it won\'t get spoiled if an army marches through a field.