I used the plans for the fire station loft bed (http://ana-white.com/2011/11/fire-station-loft-bed), but added the stairs from the camp loft bed (http://ana-white.com/2012/07/plans/camp-loft-bed-stair-junior-height) since my son is young. I was afraid of him climbing down the ladder at night if he wakes up. The stairs are not attached and can be removed when he is older. They were designed so he can climb through the space where the lower rungs of the ladder were and use underneath the stairs as a fort, etc. The project took quite a bit of time and cost about $500 (not including the Kreg Jig or mattress).
Built from Plan(s)
Estimated Time Investment
Week Long Project (20 Hours or More)
Recommended Skill Level