I'm looking for as large a base plate as possible. Below is a 48x48 stud base, it's the largest I've seen.

Are larger plates available? Either the thin type (as pictured) or the regular plate thickness will do!


  • As a kid, I remember longer but narrower green, thin plates. The full set included streets. It was midseventies. Of course, I was a kid, it might not have been longer, but it took up a big portion of my room.
    – Stu W
    Commented Mar 10, 2016 at 14:44

3 Answers 3


The largest baseplate (thin kind) is 50x50 studs: http://alpha.bricklink.com/pages/clone/catalogitem.page?P=4186a#T=P

The largest regular plate is 16x16 studs only: http://alpha.bricklink.com/pages/clone/catalogitem.page?P=91405#T=P


The largest official baseplate that I'm aware of is 50x50 modules.


It's only slightly larger than a 48x48, and it's a bit more difficult to use in large setups since most other common baseplates have side lengths that are a multiple of 16, so you might actually be better off with a 48x48 depending on what you are trying to do.

This part hasn't been available since the 70s, but you can still pick it up on Bricklink.

You may be interested in this answer which includes other raised baseplates:

What is the largest single LEGO piece?


There is a 48 by 64 Lego-compatible baseplate available.

  • 3
    From whom? How do you know this? Commented Mar 29, 2019 at 17:52

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