








Product description


Everything You Love In A Speed Square – And MORE!
Introducing biggest evolution of the Swanson Speed Square in almost 100 years!
The Speed Square PRO.
This revolutionary layout tool born out of the true legacy tool, the Speed Square, is packed full of new features and has the same reliable features you have always counted on from the Swanson Speed Square making layouts even faster and easier!
The Speed Square PRO starts with all the incredible features of the original Speed Trim Square, then takes it up a notch. From a new 22½ degree angle coming off of the pivot for quick layouts to an additional 5½ inch diamond mark for working with 2×6 material.
It also has 1½ inch edge used to measure the width of 2X material for quick framing.
The Speed Square PRO is a proficient tool – builders appreciate how accurate, durable and reliable it is in their tool assortment.
And while the Speed Square PRO is designed for the true professional – anyone can use it!


The Swanson Tool Co Speed Square PRO
2x LONGER Scribe Bar with 1/8 inch increments and the diamond cut out bridge that adds support1-1/2 inch EDGE- the width of 2X material -mark both sides of studs22-1/2 degree ANGLE coming off of the pivot for super quick – and accurate – layouts5 inch Diamond Call out is great when working with 2 x 6 materialBeveled edges get the square closer to the working material resulting in more accurate Top Cut measurements. And its made with numbers and markings that are now easier to see – with Gradations included for marking common, hip, valley, and jack rafters2 Convenient marking edges for 3/4 inch and 1/2 inchHigh-visibility, black gradations with a non-glare, matte finish for easy reading in any lighting conditionsUseful for determining and marking angles and making square cuts on boardsHeavy-gauge billet aluminum alloy construction is die-cast for increased accuracy over laser-etched and extruded stamped rafter squares
Includes pocket-sized Swanson Speed Square PRO Blue Book—a comprehensive reference guide with our very useful One-Number Method to help workmen make correct angle cuts for any pitched roof. And because it’s a Swanson Speed Square, the Speed Square PRO includes our own Diamond Cut Out at the 3 inch mark – which gives you a perfect visual confirmation for seat cuts. And because this is a Swanson Speed Square, you know it’s a true multi-tool: Try square, miter square, saw guide, line scriber, and protractor because that’s how we’ve been manufacturing our Speed Squares since 1925!
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Customer Reviews
4.8 out of 5 stars 23,124
4.8 out of 5 stars 23,124
4.8 out of 5 stars 23,124
4.8 out of 5 stars 23,124
4.7 out of 5 stars 7,711
Price
$17.80$17.80 $9.98$9.98 $18.92$18.92
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$7.97$7.97
Solid Die Cast Aluminum
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Ships with Blue Book
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Same Features as The SPPED Square
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Additional Features
22.5 degree angle for layouts, 2nd Diamond Mark at 5.5″ for 2×6 Material, 1.5″ Edge for 2x Quick Framing All the Features You Know And Love About Speed Squares Ideal for Stair Stringers Pocket-sized; Ideal for Cabinetry, Mortise & Tenon Ideal for Delicate Material (non marring)
Double stud wall width layout with ease
3/8”, 1/2”, 3/4” and 1-1/2” guides incorporated into the square walls for speedy marking
A quick 22-1/2 degree pitch guide for octagons and 5 pitch rafters

Marla –
Makes My Measurements Look Professional
Solid, accurate, and does not bend or feel flimsy. This speed square made my DIY projects look way more legit than my skill level probably deserves. Easy to read markings and comfortable to use — no guessing, no eyeballing, no regret.
D. Trelford –
Full function speed square
Exactly like it’s big brother but small enough to fit in an apron. I checked it for square and 45 degrees and it right on the money. Weighs practically nothing because of its aluminum construction and clear markings. Excellent value and perfectly square. I can stop looking for squares now since I have four different sizes up to 18”.
Mr.Gomez –
Swanson Speed Square
The Swanson speed square is an amazing tool, and a must have in your tool inventory. I use it for all of my DIY projects, that involves carpentry. The tool is of excellent quality that’s built to last. Highly recommended!!!Two thumbs up. 👍 👍
Cynthia A. Lees –
Heavy duty
Great sturdy quality. Clear markings
Anu Ray –
First Timer w/Rafters and “Birdsmouth.”
I’m always trying to increase my knowledge of building and carpentry and recently decided to incorporate a rafter (with bird’smouth) design into my window awning project. The Swanson square was perfect for the job and with the book it came with I was able to learn the “One-Number” rule that makes it real simple to build your roof rafters. I’d advise all first timers to do it on a smaller project–such as dog house or small shed–before a home’s roof. I’m not a natural numbers guy so only read the book in a few parts, watched a quick video on the Swanson square and then went to work.I went through three sets of 2×4 rafters templates until I got the angle just right for the rafter to sit up against the ledger against the wall and the birdsmouth to land on the lower ‘sill plate’ that would support the window awning. I think my “ONE” number for pitch was 9 (I was using degrees{36}) and from that number you can essentially build a real roof. It came out great and from this one project I”m pretty sure I can build a real roof for any structure I design at this point. If you know your ‘one’ number prior to building a new project but we didn’t because of other concerns such as making the awning tall enough for my clients to walk under while slope had to be steep enough to provide sufficient shade to window. As a result, my assistant and I had to test angle cuts (and then hold them up against the framing structure) until we got the approximation of 36 degree-which makes all the rafters plumb cuts. Then using the square we got the pitch of 9. More importantly, you can use a simple formula to find the distance for your birdsmouth (where your ‘seat’ and ‘heel’ cuts meet the outer edge of your bulding/sill plate). Prior to this project I only used my squares for 90degree cuts. Now, it’s opened up a whole world of building possibilities. Thanks for the book, Swanson.
IO –
Good balance of price and functionality
It’s that need for me. This tool is absolutely worth the money. The build quality feels solid, and it’s very easy to handle even for longer projects. It has become indispensable for working with wood, but it’s also versatile enough for other tasks around the workshop. A great balance of price, functionality, and durability — I’m very satisfied with this purchase. Fit me, light.
Al –
Trusted name in speed squares!
Great product! Very glad to have bought one to keep in my tool bag for tight corners and smaller trim work.
Practical Picks –
Durable speed square for carpentry projects
Made of solid aluminum with etched markings that are easy to read. Useful for measuring angles, guiding cuts, and marking lines. Blue finish stands out in a toolbox.Verdict: A reliable, affordable tool—best for DIYers and woodworkers.
Usuario –
Me es muy útil. De buen tamaño para usarlo también como guía para sierra circular asi como también su grosor es ancho ya que he visto otras escuadras rápidas muy delgadas. también es útil para que asiente bien la madera cuando vas a poner un tejabán. Estoy satisfecho con el producto.
Jomdu Dulom –
One of the best!!!
Jhonatan –
Produto de boa qualidade ferramenta chave na oficina
jose a. –
practica y util , resistente e indeformable , buen producto gracias
cote francois –
Compact , tres lisible ,favorise pour ma part une rapidité d’exécution pour mes travaux d’atelier!