Search  for anything...
Swanson Tool Co., Inc

SWANSON Tool Co S0101 7 Inch Speed Square, Blue

  • Based on 22,922 reviews
Condition: New
Checking for the best price...
$9.98 Why this price?
Save $4.01 was $13.99

Buy Now, Pay Later

As low as $2 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Mar 27
Order within 17 hours and 6 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: 7" Speed Square


Size: 7 inch


Features

  • MULTIPLE GRADATIONS: Make the exact mark you need! Gradations Included For Marking Common, Hip, Valley, And Jack Rafters; Useful For Determining And Marking Angles And Making Square Cuts On Boards
  • FEATURES: Pocket-Sized Swanson Blue Book, A Comprehensive Guide To Help Workers Make Correct Angle Cuts For Any Pitched Roof, and it includes pages of inch rise per foot run data - meaning you don't have to do the math.
  • INCLUDES: Features Common To 5 Different Tools (Try Square, Miter Square, Saw Guide, Line Scriber, And Protractor) Making The Speed Square Something That Belongs On Every Tradesman'S Tool Bench
  • EASY TO USE: 1/4-In Spaced Scribing Notches And The Diamond Cutout For Easy Rafter Seat Cuts And Scribing The Most Common And Popular Stud Widths, and Black gradations against its non-glare, matte finish make for easy reading in any lighting conditions
  • MADE IN USA: The Speed Square, made in the USA since 1925, is essential for every carpenter, construction professional, roofer, and DIYer
  • SIMPLIFY IMPORTANT TASKS: Any time you need to ensure something is square, this Speed Square is the best tool for the job. It's also really easy to mark 90 and 45 degrees with this square. The Swanson Speed Square is the perfect square for every project and job.
  • WHEN USED AS A SAW GUIDE: The Speed Square makes truing up a board easy

Description

The Swanson Tool Speed Square S0101 is a versatile and reliable layout tool designed for carpenters, contractors, and DIYers who demand accuracy on every project. Crafted from heavy-gauge aluminum alloy for durability, this classic speed square functions as a try square, miter square, protractor, and saw guide—all in one compact tool. The bold black markings are easy to read and help ensure precise measurements and clean angle layouts for framing, roofing, stair building, and general construction tasks. This carded set also includes the Swanson Blue Book, a trusted pocket-sized guide filled with helpful instructions, angle charts, rafter tables, and layout tips to simplify common construction calculations. Whether you’re making quick cuts, marking angles, or laying out rafters, the Swanson Speed Square provides dependable accuracy and efficiency on the job site or in the workshop. Built for long-lasting performance, it’s an essential tool for professionals and home improvement enthusiasts alike. From the Manufacturer The Swanson Tool SO101 7-inch Speed Square is a popular pocket-sized square that incorporates features of the framing square, tri, miter, 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.

Material: Swanson Speed Square


Brand: Swanson Tool Co., Inc


Color: Blue


Style: 7" Speed Square


Graduation Range: 1/8 Inches


Brand Name: Swanson Tool Co., Inc


UPC: 038987001017


Global Trade Identification Number: 17


Model: S0101


Part Number: S0101


Unit Count: 1.0 Count


Included Components: Swanson Tool S0101 7-inch Speed Square Layout Tool with Blue Book


Warranty Description: As Labeled


Manufacturer: Swanson Tool


Item Type Name: Swanson Tool S0101 7-inch Speed Square Layout Tool with Blue Book


Item Weight: 0.5 Pounds


Material Type: Swanson Speed Square


Graduation Range: 1/8 Inches


Item Dimensions L x W: 8"L x 1"W


Color: Blue


Style Name: 7" Speed Square


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Cool tool
Style: 7" Speed Square Size: 7 inch
Lost it at some point but it was a cool new tool when I needed to build a chicken run. Hopefully I can find it before then next project. Sturdy and accurate measurement markings, easy to use once you get the hang of it.
Reviewed in the United States on March 1, 2026 by Cole
    • Excellent tool
Style: 7" Speed Square Size: 7 inch
Well made tool at a very good price.
Reviewed in the United States on March 2, 2026 by Tile Tool Jim
    • Good balance of price and functionality
Style: 7" Speed Square Size: 7 inch
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. ... show more
Reviewed in the United States on September 26, 2025 by IO
    • Makes My Measurements Look Professional
Style: 7" Speed Square Size: 7 inch
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.
Reviewed in the United States on December 20, 2025 by Marla
    • First Timer w/Rafters and "Birdsmouth."
Style: 7" Speed Square Size: 7 inch
Review Image by Anu Ray Anu Ray
Review Image by Anu Ray Anu Ray
Review Image by Anu Ray Anu Ray
Review Image by Anu Ray Anu Ray
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 2x4 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. ... show more
Reviewed in the United States on February 5, 2019 by Anu Ray Anu Ray
    • Very useful
Style: 7" Speed Square Size: 7 inch
Super handy and came with instructions on how to use
Reviewed in the United States on January 29, 2026 by Spitfish
    • The ultimate pocket-sized layout tool
Style: 7" Speed Square Size: 7 inch
I've owned several speed squares over the years (cheap knockoffs, bigger 12" versions, even some plastic ones), but the Swanson Tool Co. S0101 7 Inch Speed Square (Blue) is still the gold standard — it's the one I reach for almost every single time I need accurate, quick measurements on the jobsite or in my garage. After years of daily use, it's become one of those tools that feels indispensable. Build quality — built like a tank. Made of heavy-gauge aerospace aluminum alloy with a durable blue matte finish. It's tough — won't bend, warp, or rust even after getting banged around in a toolbox, dropped on concrete, or left outside in light weather. The black-filled gradations are sharp and easy to read against the blue background, no fading or wearing off. The edges are crisp for clean scribing, and the lip (heel) is perfectly square for reliable 90° marks. Features & versatility — does way more than a basic square. 7-inch size — compact enough to fit in a pocket or tool pouch, but large enough for most framing, roofing, and layout tasks. Built-in features of a framing square, tri-square, miter square, and protractor. Graduations for common, hip, valley, and jack rafters — perfect for roof pitches and angle cuts. Scribe notches for easy pencil marking. Degree scale for quick angle measurements. Comes with the famous pocket-sized Swanson Blue Book — a mini guide packed with rafter tables, conversion charts, and how-to info for roof framing. Super handy reference right on the tool. What I use it for Marking 90° cuts on lumber Checking square on frames, cabinets, decks Laying out stair stringers and roof rafters Finding angles for trim, brackets, or miter cuts Quick squaring of sheet goods or drywall As a saw guide for circular saws (the lip hooks over the board edge perfectly) Even basic measuring and scribing in tight spaces It's incredibly accurate out of the box — no need to calibrate or second-guess it. The combo of size, durability, and all-in-one functionality makes it perfect for carpenters, woodworkers, DIY homeowners, roofers, remodelers — anyone who builds or fixes things. Value is unbeatable. Usually around $10–15 (often on sale), and it lasts forever. With over 16,000+ reviews averaging around 4.8 stars, it's consistently one of the highest-rated and best-selling carpentry squares on Amazon for good reason. No gimmicks, no plastic parts that break — just a reliable, professional-grade tool at a homeowner price. If you're starting a tool collection, upgrading from a basic combo square, or just want the classic speed square that pros swear by, this Swanson S0101 is the one. It's earned a permanent spot in every tool belt I've owned. Zero complaints — highly recommend! 5 stars all day. ... show more
Reviewed in the United States on February 5, 2026 by Kevin L.
    • Good tool
Style: 7" Speed Square Size: 7 inch
Good
Reviewed in the United States on February 23, 2026 by Daniela De Leon

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...