Despawn times table

How about centralize all despawns?

These from wiki:

Wood shelters - 12 hours
Campfires - 2 hours without fuel (??)
Wood pillars - 5 days
Wood foundations - 5 days
Wood walls - 5 days
Wood windows - 5 days
Wood stairs - 5 days
Wood ramps - 5 days
Wood ceilings - 5 days
Wood doorways - 5 days
Spike walls - 3 days
Loot sack - 3 minutes