Modular and designed to support large “furniture” like spool shelf. 

You can make this as wide and tall as you like, the model consists of 7 parts. 

2 Bottom pieces (edge, center)

2 Middle pieces (edge, center)

2 Top pieces (edge, center) 

1 bracket that goes between shelf layers to stabalize it to the wall if needed (will be needed if going tall). 

Assembly is easy the induvidual pieces stacks ontop of each other. Glue is optional (I used it just so it cannot come apart during abuse). 

You need ¾ inch square wood dowels to connect between the pieces (theese makes up the shelving part the 3d rools sit on).