A garage (9)

I've made cardboard boxes.

A garage (8)

I've made pallets.
Carvings on the surface are generated with using a normal map.

Usually those kind of normal maps are baked from high poly models. Making a high poly model with carvings is a hassle.
Actually you have to make only carvings like a image below.
Then you bake it to a low poly model like this.
This is a result.

A garage (7)

I've made a tool-strage box and some tools on it.