You know la, HDB designers/Architectures CMI, bomb shelter, crap la.. afterall, still a storeroom for every household.
Bomb Shelter door is super heavy, likewise, a storeroom door will be lighter.
Sillypore is just a small island, do you think we can survive when there is an attack? of course no la... tiu.
We got the idea from Plush Living showroom. Take a look at the image below.
For this idea, you have to imagine the direction, beginning from left side.
Once you step into the house, first this, you will see the PVC on your left, the centre piece of glass is door to Bomb Shelter, last piece of glass on the right is for decoration.
I hope you understand what i am trying to explain. keke