STEM Junior Engineer Builders

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  • 20 different models
  • Learn about engineering
  • 285 building pieces
  • 36-page illustrated experiment manual
  • Intermediate skill level

The STEM Junior Engineer Builders set puts you in the shoes of a structural engineer with a vital role in helping a city thrive. You are tasked with constructing twenty unique structures which will not only bring the city to full operation, but provide you with an adept understanding of tension, load, force, and many other STEM engineering things. Put your skills to test as you build bridges and a host of other amazing structures.


  • Product Dimensions: 14.6 x 3.1 x 11.5 inches
  • Item Weight: 1 pounds
  • Manufacturer Recommended Age: 8 - 14 years

Our SmartKidsPlanet initiative began in 2017 when 3 geeky and dedicated parents saw a gap in the children’s toys and games market. An opportunity was spotted while we struggled to find toys and games for our kids which enriched their minds and guided them toward science, art, math and construction. The trio then knew that their paths were set, establishing an online shop with a comprehensive range of intelligent toys for babies, children and young teenagers.

With offices based in California, our SmartKidsPlanet team enjoys a daily growth in our presence within the children’s educational toys market. We love our new place in life, and we love helping young minds with their growth and skill development, all while having as much fun as possible.


We ship all our products directly to you from our warehouses located in multiple locations in the West and East Coasts.

Processing Time: All orders placed after 2 PM EST will be shipped the next business day. Orders placed after 2 PM EST Friday will be shipped on Monday. 

Orders are shipped and generally arrive within 2 to 3 business days after the order is processed. Tracking information will be sent via email once your order has been processed. The tracking number may not become active for 24 - 48 hrs.

Kindly take note that due to our business utilizing multiple warehouses within the United States, orders of more than one item may arrive as separate deliveries at different times. 

Orders made to PO BOX may take up to 12 days. Additionally, we do not ship to military bases. Hawaii and Alaska

Customer Reviews

Based on 46 reviews
Kenya underwood
cool set for your builder

I am not sold that these are better than say legos, but these are a nice structured set for those little ones that like to have a directed task. I see this set working really well in a STEM camp or an after school organization / club. Great examples and ideas.

Keli Pickus
GREAT GAME.. but the pieces are already breaking..

i have been playing this with my 7 year old son. every week we make a different bridge. and then he would bring his cars and setup his highways..the game is great, but the pieces break easily.. the connectors are rigid and not so strong. so unassembliying the pieces and then setting up a new bridge slowly breaks the pieces. i have been using superglue to put them back together.. and keeping the game because it is really good.

Khris Trombley
Great intro to engineering

This is a great intro to engineering, not incredibly difficult so my kid likes it. I particularly like the lessons and challenges.

Kelley Randall
great gift for nephew that likes to build

great gift for nephew that likes building and constructing things

Kellie Riser
Great beginner's learning tool for structural engineering

Great gift for high school students to learn basic structures engineering.




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