One of the limitations of growing your LEGO layout is space but if you are able to expand it, you might need some more baseplates. Luckily, Amazon is having some great sales on them. Both the Green and Blue baseplates are priced at $5.14 each. The Green is 49% off and the Blue is 36% off due to the Blue one being cheaper originally. If you’re using the Gray, that one is 20% off. At these sales, now is a great time to stock up on them if you can.