Does this need to be fixed to the wall?

Our modules are wall-mounted with our unique patented cleat system and hang entirely on the wall. 

What is a cleat system? Is it a metal strip thee tends out from the wall at the top With a cut in the wood the sits over it?

The cleat is a piece that connects the vertical boards. The cleat is what you drill through to hang to the wall through the studs. The unit sits flush against the wall and allows more weight per unit than a rail system.

Is this wood or melamine?

Modular Closets are made of 3/4" M-2 grade furniture board, with a high-quality Thermally Fused Laminate (TFL), this technology permanently bonds the laminate to the board using heat, not glue. This gives our closets a durable and long-lasting finish.

Is the assembly difficult?

We design our closets for easy assembly and provide clear instructions. Additionally, if you have any questions at any point, we provide excellent customer service.