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What is the largest single LEGO piece ever produced? This does not include LEGO affiliates like Duplo.

Clarifications

  • It must be a purchasable block.

  • By largest, I mean largest by Volume/Weight of Plastic

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Does this include special one-off bricks? I have seen some giant things that could be considered "one brick" in the Lego Store at the Mall of America, for example, but they're not things you could ever buy. –  user23 Oct 25 '11 at 20:50
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Must be a baseplate. Waiting for the ?x? count to come in... –  Lunatik Oct 25 '11 at 20:50
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Do you mean by area or volume? –  Zhaph - Ben Duguid Oct 25 '11 at 20:51
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Note that DUPLO isn't really an affiliate of LEGO, DUPLO is LEGO. –  BoltClock Oct 25 '11 at 20:53
    
By "no affiliate", I think he wanted to exclude things such as playtables or other furniture pieces, which would easily win. –  Joubarc Oct 26 '11 at 7:46
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5 Answers

up vote 25 down vote accepted

The "Extra Large" grey baseplate is 15"/38cm square, with 48 studs to a side.

Alternatively, the moulded castle baseplate had a greater volume (with hight), and a base size of 32x48 studs and 6 bricks high (15"x10"/38x25cm) (in other colours as well):

Baseplate 32 x 48 x 6 Raised with Corner Pits and River Pattern (30271px1)

Tim offered up the following, also with a base size of 32x48 studs, 6 bricks high (15"x10"/38x25cm) (it came in a few other colours too):

Baseplate 32 x 48 x 6 Raised with Steps and MdBlue/Green Garden Pattern (44510px2)

Peeron also lists a 48x48 Raised with Staircases and Pits:

Baseplate 48 x 48 Raised with Staircases and Pits with Yellow Cobblestone and Ivy Pattern (33214px2)
Peeron.com

As well as a very old "Giant Base Plate" and a "Road 3-way Curve with Gray Pattern", both at 50x50 studs.

Joubarc suggested the "Boat Hull Floating 74 x 18 x 7":

Boat Hull Floating 74 x 18 x 7 (57789)
Peeron.com

Stretching the definition of "Single Piece" somewhat, the "Electric Technic Control Centre with Yellow and Red Buttons" from the Technic Control Center was a beast of a part:

Electric Technic Control Centre with Yellow and Red Buttons (2840c01)
Peeron.com


Made this CW to allow others to add their contenders

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It's still pressed from a single sheet, so the volume of plastic is probably less. –  fredley Oct 25 '11 at 21:03
    
@fredley Techincally I believe they're injection moulded rather than pressed, and the thickness is usually consistent across the part... –  Zhaph - Ben Duguid Oct 26 '11 at 14:16
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This is getting silly - I need someone to get all these pieces and weigh them, or measure their volume via displacement ;) –  Zhaph - Ben Duguid Oct 26 '11 at 15:35
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A LARGE bounty will be awarded to anyone who does that! –  fredley Oct 26 '11 at 15:38
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@Zhaph it's my understanding that baseplates are vacuum-formed. There is a mold involved but the sheet of plastic goes in whole. –  Erik Olson Nov 4 '11 at 6:49
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Plastic Playscape Soccer Field Base 72 x 46 x 7

this brick has always annoyed me, when sorting my bricks

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ooo, soccer stadium base. nice. –  gev Feb 13 at 3:02
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@Zhaph : (from my sister's LEGO collection) lego fairy castle base

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What set was this from? Possibly a Belville one? –  tombull89 Oct 26 '11 at 9:10
    
@tombull89 Yeah, my sister's: Bellville 5862 –  Tim Oct 26 '11 at 10:32
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Your sister's, yeah, right :-) –  Joubarc Oct 26 '11 at 18:53
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@Joubarc And we all know how many 'sisters' you have. –  muntoo Nov 19 '11 at 23:56
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enter image description here

If you go by Volume/Weight. This is heaviest single-element I've ever seen. It's not just plastic but it's one element made and sold by LEGO.

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Good call, I didn't think about "multipart" single bricks, although I think I can still trump that one with a different Technic controller hang on... –  Zhaph - Ben Duguid Oct 26 '11 at 15:12
    
I think there's two categories: Single plastic-only piece and Single Lego element. –  pcantin Oct 26 '11 at 15:22
    
There you go, Electric Technic Control Centre with Yellow and Red Buttons ;) –  Zhaph - Ben Duguid Oct 26 '11 at 15:29
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Wow! That baby is a monster! Thanks –  pcantin Oct 26 '11 at 15:31
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I found this video (youtube.com/watch?v=yJXPkhjGwkg&feature=related) with the Electric Technic Control Centre in use –  pcantin Oct 28 '11 at 10:24
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if you're just counting the basal area, it seems to be the gray 48x48 baseplate:

gray base plate

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man, this was a beast of a baseplate. Also game in green as half of the lego football field. –  tombull89 Oct 25 '11 at 21:07
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Before that, the extra-large gray baseplate was 50x50, but nowadays only the 48x48 can be bought. –  Joubarc Oct 26 '11 at 7:45
    
Also in Blue, plus some rare ones that were never in sets: bricklink.com/catalogItem.asp?P=4186 –  gev Feb 13 at 3:00
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