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Swanson Tool Co S0107 "Big 12" 12-Inch Speed Square Layout Tool with Blue Book

4.8 4.8 out of 5 stars 1,192 ratings

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Purchase options and add-ons

Material Aluminum
Brand Swanson Tool Co., Inc
Color silver
Style 12" Speed Square
Graduation Range 1/4 Inches

About this item

  • Heavy gauge aluminum alloy with matte finish to prevent glare
  • 1/4 in. and 1/2 in. spaced notches to facilitate scribing lines
  • Black gradations for easy reading
  • Patented layout bar
  • Great for deck framing and stairway building!
See more product details

Additional Details

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Customer ratings by feature

Easy to read
4.9 4.9
Value for money
4.6 4.6
Accuracy
4.5 4.5
Craftsmanship
4.1 4.1

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$19.99 ($5.00/Count)
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From the manufacturer

savage, swanson, johnson, irwin, empire, klein, kapro, stabila
Swanson

SWANSON Tool Co S0101 7 Inch Speed Square, Blue

The Swanson Speed Square was first developed by company founder Albert Swanson in 1925. This innovative tool combines 5 tools into 1: 1. Try Square, 2. Miter Square, 3. Saw Guide, 4. Line Scriber, & 5. Protractor. The Speed Square is die-cast for durability and accuracy. Made of heavy-gauge aerospace aluminum alloy, it is built to last. Black-filled gradations stand out against a matte finish for easy reading. The Speed Square includes the Swanson Blue Book of Rafter Length and Roof Construction and also features markings for using the Swanson One-Number Method of rafter layout. The Swanson Speed Square is our most popular product and remains the most trusted square of its kind. Look for the Diamond cutout for genuine Swanson products.

Swanson

Swanson

Swanson

Swanson

SWANSON Tool Co S0101 7 Inch Speed Square, Blue

Swanson

Swanson

Swanson

MULTIPLE GRADATIONS

Gradations included for marking common, hip, valley, and jack rafters. Useful for determining and marking angles and making square cuts on boards.

EASY TO USE

High-visibility, black gradations with a non-glare, matte finish for easy reading in any lighting conditions

MADE IN USA

The Speed Square is essential for every carpenter, construction professional, roofer, and DIYer.

savage, swanson, johnson, irwin, empire, klein, kapro, stabila

Product information

Technical Details

Additional Information

Warranty & Support

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Swanson

Swanson Tool Co S0107 "Big 12" 12-Inch Speed Square Layout Tool with Blue Book


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Product Description

Product Description

The Big 12® is seven tools in one: a framing square, try square, miter square, protractor, saw guide, stair gauge and out-of-square corner angle finder. It’s constructed of heavy-gauge aluminum alloy and includes the Layout Bar for use in determining out-of-square corners. Also included are the Swanson® Blue Book for roof and stairway layout and Layout Bar with hardware.

From the Manufacturer

Swanson's Speed Square is a popular pocket sized square that incorporates features of the framing square, tri, mitre, and protractor squares. Common rafter and hip/valley rafter scales permit one-number references for all cuts. The square is merely rotated to the proper roof pitch value on either scale to assure the correct angle cut. The slot along the scales will accommodate an adjustable locking pin for repetitive cuts using any 1/4-inch bolt and nut. Comes with a handy, 62 page pocket sized booklet that provides vital instructions, reference diagrams, and tables for the construction of roofs and stairs.

Compare with similar items

This Item
Swanson Tool Co S0107 "Big 12" 12-Inch Speed Square Layout Tool with Blue Book
Swanson Tool Co., Inc Swanson Tool Co S0107 "Big 12" 12-Inch Speed Square Layout Tool with Blue Book
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Swanson Tool Co S0101CP216 Value Pack includes 7-Inch Speed Square with Blue Book and 2-Pack AlwaysSharp Carpenter Pencils with Extra Black Graphite Replacement Tips
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Price$20.84$33.40-14% $11.98
List:$13.98
$29.99$13.86$12.61
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Wednesday, Apr 3
Get it as soon as Tuesday, Apr 2
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to read
4.9
4.7
4.9
5.0
5.0
4.7
Accuracy
4.5
4.6
4.9
5.0
5.0
4.6
Craftsmanship
4.1
4.5
4.8
5.0
5.0
4.5
Value for money
4.6
4.7
4.7
Sold By
Amazon.com
Amazon.com
Swanson Tool Co Inc
Swanson Tool Co Inc
Amazon.com
Amazon.com
material
Aluminum
Aluminum
Aluminum
Squares are aluminum, Combo Square is stainless steel rule w a zinc body, Pencils are wood and graphite
Aluminum
Aluminum
unit count
3.28
1
1
measurement system
Inch
Inch
Inch
Inch

Customer reviews

4.8 out of 5 stars
4.8 out of 5
1,192 global ratings

Customers say

Customers like the ease of use, value, accuracy, and performance of the ruler. For example, they mention it's easy to read, works well for price, and is incredibly accurate. Some appreciate the quality. That said, opinions are mixed on the square.

AI-generated from the text of customer reviews

57 customers mention42 positive15 negative

Customers like the quality of the ruler. For example, they say it's well-made, easy to use, and will last forever. They also say it works great as a cutting guide and is excellent for getting straight cuts all the time. Customers also appreciate the nice marking slots for carrying a line through.

"Works great and good quality, easy to read and solid." Read more

"Good product. Since I have never used this tool before. I wish the instructions was better for how to use the extra pieces." Read more

"...booger on it and ran a file down it but there seems to be a larger area that's deformed. I have contacted Swanson and am awaiting a reply...." Read more

"Ez to read, excellent as cutting guide the length is a plus when cuting rafters also the tool to find the corresponding angle and scribing ... I..." Read more

51 customers mention51 positive0 negative

Customers are satisfied with the performance of the ruler. They mention that it is an excellent tool, very useful, and a good tool to have in the shop or on the job site. It performs a variety of duties, has some really nice features, and is great for both novices and professionals. The layout bar works great for stair stringers, and it makes DIY projects easy to assess, measure, guide, and mark.

"...Helps get perfectly straight lines for cuts. Great for a novice and a professional." Read more

"Works great and good quality, easy to read and solid." Read more

"...I bought these to use to square up my table saw fence to the table. Worked great...." Read more

"...Although the square is usable, it's not what I thought it would be. The inside rail is still not perfectly flat and has two points with issues...." Read more

17 customers mention17 positive0 negative

Customers appreciate the value of the ruler. They say it works as expected, is good for the price, and is a good buy.

"Works as should and very good for price" Read more

"The product was priced quite well and it is so easy to use" Read more

"Great product. To-date this is a square worth every penny. I saw this on the Treehouse Master channel and decided to check it more on youtube...." Read more

"...Worth every penny and wish I had bought one sooner." Read more

15 customers mention11 positive4 negative

Customers find the ruler easy to use and read. They mention the numbers are easily readable, and the markings are easy to see.

"Works great and good quality, easy to read and solid." Read more

"Ez to read, excellent as cutting guide the length is a plus when cuting rafters also the tool to find the corresponding angle and scribing ... I..." Read more

"...Since I have never used this tool before. I wish the instructions was better for how to use the extra pieces." Read more

"...Markings are easy read and the little book that comes with it is a nice bonus for laying out steps." Read more

10 customers mention7 positive3 negative

Customers like the accuracy of the ruler. They say it's incredibly accurate, and works well for marking 90 degree lines for easy cutting with the miter saw. It's also great for finding the corresponding angle and scribing. Customers also say it helps get perfectly straight lines for cuts.

"...It’s a must-have for anyone doing a project. Helps get perfectly straight lines for cuts. Great for a novice and a professional." Read more

"...It does very well for marking 90 degree lines for easy cutting with the miter saw or to use as a guide with the circular saw...." Read more

"...As others have mentioned the tool is thick and not the most precise. Markings are only to 1/8"...." Read more

"...They are incredibly accurate, each and every one. Do the "flip" test and you will see what I mean...." Read more

12 customers mention4 positive8 negative

Customers have mixed opinions about the square. Some mention it's a great tool that is perfectly squared, while others say that it'll not be perfectly square at 90 degrees. The base of each square was not flat, and the inside rail is still not perfectly flat.

"...The inside rail is still not perfectly flat and has two points with issues. These squares are simple MIM parts...." Read more

"Perfectly Squared and finally something that is sized for real wood...." Read more

"...got out a calibrated square and sure enough, this Swanson S0107 was not square...." Read more

"Not 100% perfectly squared, but great tool anyways" Read more

9 customers mention5 positive4 negative

Customers are mixed about the size of the ruler. Some mention that it's large enough to measure, guide, and mark real wood, while others say that the bolt heads are clearly the wrong size for the attachment slot.

"...Very happy with the larger size!" Read more

"Works great. Not meant for fine measurements, but works great and will last forever." Read more

"...plastic ones are ok if you are just framing 2x4 but this one can do much larger panels and has nice marking slots for carrying a line through the..." Read more

"...will need to drill out the mounting slots because the supplied bolts are slightly too large (or the slots are too narrow)...." Read more

Totally Unacceptable (updated)
3 Stars
Totally Unacceptable (updated)
I bought the on 01-03-2023 and am just now using it. There's an uneven spot on the inside of the rail and it rocks back and forth when held against your work piece, or other straight edge. I can't believe a company who based their entire existence on accuracy would allow this to get past quality assurance. I can't even use this for what I need. I looked to see if there was a booger on it and ran a file down it but there seems to be a larger area that's deformed. I have contacted Swanson and am awaiting a reply.Update-It took a while but I finally received a new gen "Big 12" directly from Swanson. Although the square is usable, it's not what I thought it would be. The inside rail is still not perfectly flat and has two points with issues. These squares are simple MIM parts. The castings have an affect on these surfaces (both side) as you can see in the photos. There is very slight "step-down" at these points that still causes the square to rock if not held on the flat spot . All in all, it's better than the first one and they have reincorporated the diamond cutout which is useful. It just seems to me that any MIM part, especially a measuring tool, should be machined after casting. There are only 5 surfaces that need to be hit with a CNC to make this tool much better and I would pay additional for that. I'll not pursue this any further, this is the best they can do. But, I have to say, their customer service is excellent.
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