Description
Product Overview
The Swanson Speed Square set combines two of the most trusted tools in the trade: a 7‑inch and a 12‑inch speed square, both forged from heavy‑gauge billet aluminum alloy. This die‑cast construction delivers superior rigidity and resistance to wear compared with laser‑etched or stamped alternatives. Each square features clearly marked gradations for common, hip, valley, and jack rafters, allowing you to determine and mark angles quickly. The set also includes the iconic Swanson Blue Book, a compact reference guide that simplifies angle calculations for roof framing and other carpentry projects. Dimensions are 17.37 x 1.62 x 8.75 inches and the weight is a manageable 1.83 pounds, making the tools easy to carry on the job site.
Usage
Designed for professional carpenters, construction crews, roofers, and dedicated DIY enthusiasts, these speed squares excel in a variety of environments. Use the 7‑inch square as a saw guide for trimming boards, or as a quick reference for laying out 90° and 45° cuts on framing lumber. The larger 12‑inch “Big 12” square is perfect for laying out longer rafters and for marking angles on wide boards where a longer baseline improves accuracy. Whether you are framing a house, installing roof trusses, or building a custom bookshelf, the Swanson Speed Squares provide the precision needed to keep your work square and true.

Why Choose Us
Swanson has been manufacturing speed squares in the USA since 1925, a heritage that guarantees consistent quality and performance. The billet aluminum alloy used in these models resists deformation, ensuring that the angles remain true even after years of heavy use. Each square undergoes rigorous quality checks and is backed by a reputation for reliability reflected in a 4.8‑star rating from nearly 10,000 customers. By choosing this value pack, you receive two essential tools and a reference guide at a price that delivers exceptional return on investment for both professionals and hobbyists.
Key Features
- Heavy‑gauge billet aluminum alloy for maximum durability and accuracy
- Two sizes (7″ and 12″) cover a wide range of marking and cutting tasks
- Comprehensive gradations for common, hip, valley, and jack rafters
- Includes Swanson Blue Book reference guide for quick angle calculations
- Made in the USA with a legacy of craftsmanship since 1925
FAQ
Can I use these squares as a saw guide?
Yes, both the 7‑inch and 12‑inch speed squares are designed to serve as reliable saw guides, helping you make straight, square cuts on boards of various lengths.
What is the difference between the 7‑inch and 12‑inch squares?
The 7‑inch square is compact and ideal for quick layout and as a guide on smaller pieces, while the 12‑inch “Big 12” provides a longer baseline for marking angles on larger rafters and boards.
Is the aluminum construction prone to rust?
No, the billet aluminum alloy is naturally resistant to corrosion, making the squares suitable for use in humid or outdoor environments.
Do the gradations include metric measurements?
The primary markings are in imperial units, but the included Blue Book offers conversion tables for metric measurements if needed.
Will these squares fit in a standard tool belt?
Both squares are lightweight and compact enough to be carried in most standard carpenter tool belts or pouches.






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