Here is how I DIY-ed my very own platform bed which is able to store heaps of stuffs for only...
 $316!!

The picture below is how I constructed the shelves altogether to make it into a platform.
Please take note that all the shelves used were from the BESTÅ family.
I will provide the link for you to see the item on ikea's website for your own reference.

So... my personalised  platform bed is made up of
4 x BESTÅ White frames (120cm x 40cm x 38cm)
3 x BESTÅ White frame (60cm x 40cm x 38cm)

FRAME 'A'

First link: $70 for normal white frame

http://www.ikea.com/sg/en/catalog/products/90245951/#/30245845

Second link: $125 for TV Bench
http://www.ikea.com/sg/en/catalog/products/10294525/

**The dimensions for the normal white frame and TV bench are the same (120cm x 40cm x 38cm)
the only difference is that for the TV bench there is a hole already cut out at the bottom for wiring purposes.**

PLEASE REMEMBER TO PURCHASE THE CORRECT ITEM AS THE AMOUNT DIFFERENCE IS $55 EACH AND IN TOTAL YOU MIGHT BE SPENDING $220 MORE!

FRAME 'B'

Link: $40 White Frame
http://www.ikea.com/sg/en/catalog/products/80245961/#/50245849

The reason why I only spent $316 constructing my platform bed was because the day that I went to ikea to purchase my shelves, frame 'A' which is also known as
BESTA white frame (120cm x 40cm x 38cm)
was on sale at $49 each!

So...
$49 x 4 = $196
$40 x 3 = $120
$196 + $120 = $316

and the actual amount if there weren't any sales is...

$70 x 4 = $280
$40 x 3 = $120
$280 + $120 = $400

Considering the fact that you are actually spending $400 on a platform bed which can also store and keep your things I think it is worth every penny of yours! 

I hope this will help you if you are intending or planning to also built your very own platform bed by purchasing shelves from IKEA!

Xoxo, 

B