queen sized bed for my twin sized son

My son wanted a bigger bed so when his friends and cousins sleep over they dont have to squeeze into his twin. My son is 12 by the way, so when I got a king I gave him my queen. I needed to raise it up because I knew I wanted to build a trundle to put under it. This bed is pretty heavy, very sturdy (even with 5 kids sleeping on it or jumping on it) I took the idea from my Malm bed from ikea but its a lot heavier and stronger

Estimated Cost
just under $100
Estimated Time Investment
Day Project (6-9 Hours)
Finish Used
Minwax ebony stain. 2 coats. semi gloss poly spray
Recommended Skill Level
Intermediate