LEGO Brick Dimensions and Measurements

Posted by on Apr 21, 2019 in Uncategorized | 6 comments

The LEGO bricks are precisely designed to fit perfectly together. There is a 0.2mm gap between bricks next to each other. The gap between two bricks stacked on top of each depends on how careful to pressed them down. Of course there are several websites that show you the exact measurements, but some of them were a bit confusing or even broken.

LEGO 2×4 Brick (3001)

I enjoy working in 3D so I used Fusion 360 to create this technical drawing of the LEGO Brick. You can download the model over at GrabCAD and the PDF file from here.


LEGO 2×4 Plate (3020)

This plate is 1/3 of the height of a normal brick. You can download the model at GrabCAD and the the PDF file from here.


LEGO 1×4 Technic Brick (3701)

The technic bricks have a hole in the side for pin connectors or axles to go through. I had to cut open a brick to get the exact design of the inside tubes right. The model is available at GrabCAD and the PDF file from here.



  1. Hi. By inspecting the Plate vs the Brick, it looks like the walls are thicker. Is it possible, that the 0.6×0.2 elevations create the same thickness, so the walls at the plates are 1.4mm?

  2. The walls of the technic brick are certainly thicker (1.4mm). I confirmed this by measuring them myself. The walls of the 2×4 brick and 2×4 plate seem to be identical: 1.2mm. I am not sure what you mean with the 0..6×0.2 elevation.

  3. Please do more parts like this. I enjoy using inventor and making my own creations. A bit difficult measuring it myself. What you have done so far is very helpful. Thanks

  4. Thank you for these lego parts they really helped me with my school work. Can you please make more it would really be appreciated. Thank you very much .

  5. The links to the PDF files don’t work.

  6. Hi Mike, one link was indeed broken to the PDF file. It is now fixed.

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