Picture of IVAR small triangular shelf
The IVAR system from IKEA offers shelves and pentagonal corner units, but I wanted a little triangular end unit. With a bit of sawing and drilling, I was able to transform each small shelf into two triangular shelves.

As an aside, note that the zigzag long shelves add some extra structural support as they act partly as a truss, in addition to looking interesting.

Step 1: Start with small shelf

Picture of Start with small shelf
IVAR offers a small pine shelf which has reinforcing metal bits for supporting the shelf on little metal pegs.
AlexL231 month ago
Frederbee3 years ago
This is pretty awesome. I'm trying this with some of my extra shelves!
Fretka5 years ago
I have a set of bookshelves, and have this small area where I cannot fit another bookshelf, but it looks "wrong" w/o something there....this would be PERECT..then I could display my lil lighthouses, etc there instead of on top of the entertainment center. What a cleverly done 'ible !!
hcold6 years ago
This is actually pretty cool, I don't know why anybody hasn't commented on it yet. Very well done!
xaq (author)  hcold6 years ago
thanks for noticing! A friend of mine has now done the same in his place, it really is useful. ikea should make this piece.