IKEA Kallax Feet

I needed to add feet to my IKEA bookshelf in order to get it to fit in the space. 

I used a 4 perimeters and 25% infill to ensure these would be strong enough once the bookshelf was full loaded. I think you only need 4 but used 6 just to be safe. 

The holes are sized to fit #6 screws. These are not required but can add a little extra security.