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How to build a brick T. rex

The finished brick T. rex: a giant meat-eating dinosaur with a big open toothy mouth, strong legs and tiny little arms

To build a brick T. rex, stand two green legs on tan feet with white claws, add a tan belly and a green body, a long tail and tiny arms, build open jaws with white fangs, then add yellow eyes behind the snout and black nostrils at its tip. 29 pieces, 5 steps, ages 4–9.

The T. rex build at a glance

Pieces29 (14 kinds)
Steps5
Ages4–9
Colorsgreen, white, tan, black, yellow
Finished size19 × 6 studs, about 7.7 cm (3.0 in) tall
Special piecesNone: plain bricks

Parts you need

  • 4× green 2×2 brick
  • 4× white 1×2 brick
  • 3× green 2×4 brick
  • 3× green 2×3 brick
  • 3× green 1×6 brick
  • 2× tan 2×4 brick
  • 2× black 1×1 brick
  • 2× yellow 1×1 brick
  • 1× green 2×8 brick
  • 1× green 2×6 brick
  • 1× green 1×8 brick
  • 1× tan 2×3 brick
  • 1× green 1×4 brick
  • 1× green 1×2 brick

Step-by-step instructions

  1. 1 Strong legs

    The brick T. rex after step 1 of 5, strong legs: new pieces outlined, earlier ones faded

    Put two tan feet down, add white claws, stack green legs, then lay the long green brick across both legs!

    Find: 4 green 2×2 bricks, 2 tan 2×4 bricks, 2 white 1×2 bricks, 1 green 2×6 brick

    Did you know? A T-Rex's legs were so strong they held up an animal as heavy as an elephant.

  2. 2 The big body

    The brick T. rex after step 2 of 5, the big body: new pieces outlined, earlier ones faded

    Place a tan belly in front and a green tail start behind. Then press the long green brick on top!

    Find: 1 green 2×8 brick, 1 green 2×4 brick, 1 tan 2×3 brick

    Did you know? T-Rex lived about 66 million years ago, near the very end of the dinosaur age.

  3. 3 Long tail and tiny arms

    The brick T. rex after step 3 of 5, long tail and tiny arms: new pieces outlined, earlier ones faded

    Click green bricks under and behind the tail so it sticks out long. Add a skinny green brick under the chest for arms!

    Find: 2 green 2×3 bricks, 1 green 2×4 brick, 1 green 1×4 brick

    Did you know? T-Rex held its heavy tail straight out behind, like a seesaw, to balance its big head.

  4. 4 Open toothy jaws

    The brick T. rex after step 4 of 5, open toothy jaws: new pieces outlined, earlier ones faded

    Two long green bricks make the bottom jaw. Add a green neck and white fangs, then lay long green bricks on top!

    Find: 3 green 1×6 bricks, 2 white 1×2 bricks, 1 green 2×4 brick, 1 green 1×8 brick, 1 green 1×2 brick

    Did you know? A T-Rex had about 60 teeth, and some were as long as a banana!

  5. 5 Eyes and nose

    The brick T. rex after step 5 of 5, eyes and nose: new pieces outlined, earlier ones faded

    Press a green brick on the snout, two yellow eyes behind it and two black nostrils in front. ROAR!

    Find: 2 black 1×1 bricks, 2 yellow 1×1 bricks, 1 green 2×3 brick

    Did you know? T-Rex had a super sense of smell, so it could sniff out food from far away.

Questions parents ask

How many pieces do you need for a brick T. rex?

29: 4 green 2×2 bricks, 4 white 1×2 bricks, 3 green 2×4 bricks and 11 more kinds. The full list is in “Parts you need”.

Are these T. rex instructions free?

Yes. Every step is on this page.

What if I’m missing a color?

Use a brick of the same size in another color. The shapes hold the model together; the colors are only for looks.

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