Response from LEGO SHOP
20. juli 2018
Emily, Customer Service
I'm sorry to hear that our LEGO® Classic Baseplate didn't meet your expectations.
Baseplates, like this one, are meant purely to serve as the very bottom of your build. That's why they're thinner. They're perfect for creating a build on a contained, flat space or for making a play table. Baseplates are also awesome for filling in spaces around LEGO city, giving you the look of grass, roads, water, etc.
If thicker pieces are what you're after, you'll want plates. Plates come in loads of sizes and colors and are included in most LEGO sets. They're designed to be used anywhere in a build and will allow pieces to attach below them. They are, however, smaller than baseplates since they're meant to fit in lots of different places; that means they're not as good at filling in larger spaces.