Swanson Tool S0101 Carpentry Speed Square, 7-Inch

Last updated date: October 12, 2021

DWYM Score

9.7

Swanson Tool S0101 Carpentry Speed Square, 7-Inch

Why Trust DWYM?

DWYM is your trusted product review source. Along with our in-house experts, our team analyzes thousands of product reviews from the most trusted websites. We then create one easy-to-understand review. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in the category.
Show Contents

We looked at the top Carpentry Squares and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Carpentry Square you should buy.

Update as October 12, 2021:
Checkout The Best Carpentry Squares for a detailed review of all the top carpentry squares.

Overall Take

Swanson Tool’s 7-inch speed square is easy to use, with gradations for marking common, jack, hip and valley rafters. It also makes square cuts and marks angles. The multi-faceted tool features a try square, miter square, saw guide, line scriber and protractor.


In our analysis, the Swanson Tool Swanson Tool S0101 Carpentry Speed Square, 7-Inch placed 1st when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

MULTIPLE GRADATIONS: 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. 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. MADE IN USA: The Speed Square, made in the USA since 1925, is essential for every carpenter, construction professional, roofer, and DIYer.

An Overview On Carpentry Squares

Carpentry squares are a great tool for anyone who needs to lay out and mark patterns in frames, stairways and roofs. They can also be used as straightedges to determine how linear and flat surfaces are.

These tools are also referred to as rafter squares, roofing squares and flat squares. You can find carpentry squares that are designed to fit in your pocket and ones that are made to work with different surfaces such as wood or brick.

They are generally made from aluminum or steel and are shaped like the letter “L.” Though the standard size is 24 inches by 16 inches, they can also be found in other sizes. The longer part is called the blade, and the shorter part is the tongue; these join at the heel.

You’ll find many different types of squares, often specialized for certain jobs. A combination square, for example, can mark lines at 45 degrees, 90 degrees and 135 degrees and includes an adjustable slide ruler. Tri-squares do not have the adjustable rule, so they look like flat steel blades that are riveted at 90° to wooden handles. Drywall squares, speed squares, and many others also exist.

The measuring dimensions are stamped onto the surface and vary by the purpose the tool is designed for. Most carpentry squares are calibrated in inches and fractions of inches; look for ones that are clearly stamped and easy to read.

The Carpentry Square Buying Guide

  • If you work outside, shop for carpentry squares with anti-glare coatings.
  • Aluminum is water-resistant and does not rust like steel.
  • Some of these squares come with accessories, like manuals that can instruct you on how to use them properly.
  • Some squares are multi-use tools that include the square along with many other useful parts. These can be very convenient and save you money.