Drums produce a lot of energy and you need both barrier and low frequency sound absorption
technology. Neither is present in your question at the rates and levels drums require.
Remember bass or kick drums move from 30 Hz. - 8,000 Hz., snares from 80 Hz.-
15,000 Hz. and toms from 50 Hz. - 15,000 Hz. SPL levels are high and both barrier or sound
isolation technology to keep the drum sound from neighbors and proper low frequency
technology inside the room need to be employed.
If you are not prepared to get
out a saw and hammer, then go for the suggested pre-made drum booth. It will save you time
and money in the long and short run. Make sure you physically decouple the pre-made drum
room from your existing room with vibration isolation technology.
low frequency absorption solutions. Listen to the music without hearing the room!