Questions asking for information about a known LEGO element/brick. Use the [Identification] tag for questions about unknown pieces or sets.

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17
votes
4answers
20k views

What are the dimensions of a LEGO brick?

What are the real world dimensions of bricks? (starting with 1x1 brick) Plates? Studs? Does LEGO think of this in metric or imperial units or something else?
11
votes
5answers
2k views

Are companies producing custom molded LEGO pieces legally entitled to do so?

We have seen (or I have seen, given I am a member of a few popular BIONICLE fan sites) an uproar from custom molding companies -- that is, companies that create their own LEGO pieces. My question is ...
17
votes
1answer
2k views

How can I determine the name of a brick?

Over the vast years of collecting bricks of various sizes and sets, I find that during my free builds I run low on a specific type. How can I go about identifying what the brick is named and what ...
13
votes
3answers
371 views

How to find out if an element is out of production

Is there a way to know if Lego has officially stopped making a certain Lego element? As an example, from the 580 Lego set, I haven't seen this conveyor belt (along with those wheels and the ...
22
votes
3answers
2k views

What is inside the “weight element” brick?

I own a few bricks that contain a weight inside of them. 52g according to Lego. What exactly is inside of these bricks that makes them heavy?
17
votes
2answers
935 views

Why are LEGO slope bricks textured?

Why is the slope part of bricks textured instead of the usual flat & glossy edge? Are there any non-textured forms of these bricks?
15
votes
1answer
1k views

What does imprinted information inside bricks mean?

I just randomly checked the imprinted information inside some of the bricks in my Lego sets and found that it varied. I found several different types of information: Most pieces have Lego copyright ...
7
votes
2answers
4k views

What are the exact dimensions of a DUPLO brick?

The dimensions of LEGO brick are documented well, but what about DUPLO bricks? If have only found the general statements that DUPLO is twice as large as LEGO but no exact numbers. What about the ...
9
votes
1answer
630 views

Why does the Erling brick have a ridge below its outward facing stud?

Why does the Erling brick (#4070) have a ridge below its outward facing stud? Whereas the more versatile and less common #87087 does not? The #87087 piece also has a better use in SNOT usage, as it ...
7
votes
2answers
1k views

How to sort complete sets from box of unsorted LEGO

My son has thousands of pieces of LEGO, but he has them all dumped in a box. Is there any way to figure out what sets they went to if I don't remember the names of them?