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Building Articles

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Classic ‘K-Truss’ Bridge Design (Balsa Wood)

By on January 19, 2014 - Modified April 27, 2014

For this balsa wood bridge, I used a ‘K-Truss’ design with seven vertical members and 6 ‘K-Trusses’ per side. The K’s were the most challenging part of the build, because I had to calculate each ones length, and the approximate measure of the angle I had to cut into each one. All in all, the bridge took around 10 hours of work over a three-day weekend (plus glue-drying time, of course). This website is where I originally found the ‘K-Truss’ […]


Truss Bridge

Truss Bridge

By on September 3, 2013

I recently had to do a project with limited popsicle sticks could only use school glue, and had to span two feet. The bridge also had to hold a loading dock holding a bucket full of weights. I knew a truss bridge was the way to go but didn’t know which kind exactly. Your site inspired me, and so far my bridge has not even bent.


Craft Stick Bending

Craft Stick Bending

By on April 11, 2011 - Modified January 2, 2014

A revolutionary way to bend wood when building arched model bridges. This method is so simple it will blow your mind, but it really works.


Cargo Bridge Building Game

Cargo Bridge Building Game

By on April 4, 2011

This is a free bridge builder game that I found and it is pretty neat. Construct a bridge and test your building skills. Help your people gather items located on the other side of valley.


How to Build a Popsicle Stick Bridge

How to Build a Popsicle Stick Bridge

By on January 15, 2011

Building popsicle stick bridges is one of my favorite activities to do in my spare time. I have built many popsicle bridges over the years, and love coming up with new designs. A huge focus of my bridges is designing blueprints that are easy to build and structurally sound at the same time. You can purchase many of my plans and blueprints in my store.


How to Build a Model Bridge

How to Build a Model Bridge

By on October 28, 2010

Building a model bridge is one of the most rewarding hobbies I have done in my entire life . I have learned a ton about working with wood and tools. I have also learned the basics in bridge engineering, and have a greater appreciation for real bridges. Model bridge building has also given me a originative outlet that I can share with others. Not only does it give me something fun to do, I can show off my creations and attest to their abilities.


Efficiency Score

Efficiency Score

By on April 23, 2010

To help clear up any confusion when I talk about the “efficiency” or “efficiency score” of the bridges I build. This is a mathematical equation to determine how well a bridge performed


Model Bridge Kit

Model Bridge Kit

By on October 20, 2009

This kit is actually one of my first introductions to building model bridges. My mother bought this for me one year, thinking that I might like to build a model bridge kit. This bridge building kit from Amazon actually has three different bridges. It comes with all the supplies you need to build a suspension bridge, a truss bridge, and an arch bridge. All of these combined make this kit an excellent gift idea, or something you can build just for fun


Video: Build A Model Bridge

Video: Build A Model Bridge

By on March 31, 2009 - Modified January 11, 2014

This is the absolute best video I have seen about building model bridges. Roy Coleman, the founder of the International Bridge Building Contest, gives a very informative presentation in this video. The presentation is over an hour long. He shows how to build a bridge from scratch. He is gearing his video towards the…


Lateral Bracing Joints

Lateral Bracing Joints

By on January 4, 2009

I want to put x-shaped supports on my bridge, but I don’t know how best to join them. I’ve heard of something, I think it’s called a half-lap joint, that I think might work best. You cut half of the wood off the part of the strip that will be the actual joint, and then connect the two pieces at those joint parts. There isn’t any part of the wood sticking out, and they are very connected, I think, as far as how the weight/force is distributed, which I figured would be good. But is there a better way to make an x


Bridge Terms

Bridge Terms

By on October 30, 2008 - Modified March 14, 2013

Hey everybody once again it’s me, First Timer. I thought the one thing that would make this website even better would be some vocabulary on the parts of bridges. Here are a few terms that might help if you ever need to describe different aspects of a truss or bridge. Let’s start with “Arch”…


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K-NEX Bridge for Fun!

By on October 28, 2008 - Modified December 11, 2012

Hey guys it’s me again, First Timer. I came up with a good way to practice bridge building either before or for the next competition and/or just to keep your bridge building skills good, whether it be science fair or science olympiad. It’s building different bridge designs with K-NEX, Erector Sets, and/or LEGOs. Most of you probably own one or more of the following and it really helps practicing basic truss design


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