Actual work of DIY Modular Sofa
This will be a modular sets of pallet which will be in "U" shape and also to be move around into a bed or whichever desired. There's a set of 4 of these similar pallets.



Costing:
Pallets - FOC
Sofa upholstery foam - RM100 each (from Sect 17) Sofa upholstery foam - RM100 each (from Sect 17 the ramp up to the market, opposite petrol station on the right) - Extremely bad attitude and I think this price is pretty costly, just out of convenience. Took 2 weeks just to customise such an easy foam.  Doesn't return call at all and was very rude to customers. Avoid going there if possible.
Sofa covers - Taobao RM35 each
Back cushion - Ikea RM29.90
Cushion covers - RM18 each

Soli, was only a personal favour that my uncle did for us. Yup he kept the good ones for us.
Haha, I tried to buka thread here to look for upholstery foam, really very limited. 
I wanted to import from China but way too expensive unless I use sea to ship in.