But 1 thing about Ikea Detolf, need to close the gap with silicon, else dust very easy to invade in.

Haha, i didn't use detolf for this reason, too much hassle.
But i did saw a tutorial on this via google.

Currently im using those bookshelf with glass panel. At the very least the gap of the glass panel is very small, thus minimum dust.

But in future, if have enough cash i would like to opt for the DIY from them:

https://www.facebook.com/Customdisplaymalaysia/