What Is A Roof Joist? [2025]
We’ll explain what a roof joist is, how it works, how structural engineers design it and what the difference to ceiling joists is.
![What Is A Roof Joist? [2025]](https://www.structuralbasics.com/wp-content/uploads/2023/04/What-is-a-roof-joist-768x439.jpg)
![How To Find The Centroid [A Step-By-Step Guide]](https://www.structuralbasics.com/wp-content/uploads/2023/04/How-to-find-the-centroid-of-sections-768x439.jpg)
How To Find The Centroid [A Step-By-Step Guide]
Follow this guide to learn how to calculate the centroid of any cross-section. We even show how you can automatically calculate the centroid for complex cross-sections.
Pad Foundation Design: Sand & Concrete Verification Under Vertical Load
Full step-by-step guide on how to calculate the sand capacity of a pad foundation under vertical loading and how to design the concrete and reinforcement.
![K-Truss [All YOU Need To Know]](https://www.structuralbasics.com/wp-content/uploads/2023/02/K-Truss-768x439.jpg)
K-Truss [All YOU Need To Know]
The K-Truss is a structural system commonly used as a bridge structure. But what are its different members, and how does it work? Learn more in this article.
![Gambrel Truss [A Structural Guide]](https://www.structuralbasics.com/wp-content/uploads/2023/02/Gambrel-truss-768x439.jpg)
Gambrel Truss [A Structural Guide]
The Gambrel Truss is a structural system commonly used as a roof structure. But what are its different members, and how does it work? Learn more in this article.
9 Centroid Formulas Of Different Shapes
Centroid formulas for different shapes used in engineering, such as I, H, rectangular, T and circular sections.
What is The Scissors Truss? And How Does It Work?
The Scissors Truss is a structural system commonly used as a roof structure. But what are its different members, and how does it work? Learn more in this article.
![Queen Post Trusses Explained! [2025]](https://www.structuralbasics.com/wp-content/uploads/2023/02/Queen-post-truss-768x439.jpg)
Queen Post Trusses Explained! [2025]
The Queen Post Truss is a structural system commonly used as a roof structure. But what are its different members, and how does it work? Learn more in this article.
Moment of Inertia of I Beam: Calculation Example
In this guide, we’ll walk you through how to calculate the moment of inertia of symmetrical and unsymmetrical i beams.
King Post Truss: Mastering The Art of Its Design
The King Post Truss is a structural system commonly used as a roof structure. But what are its different members, and how does it work? Learn more in this article.