# How To Use Speed Square?

## How do you find an angle with a speed square?

You can use the speed square to mark an angle, such as when cutting a rafter tail, by holding the pivot point against the board.

Swing the square until you read the desired angle on the board’s edge, and make your mark.

## How do you cut a rafter with a speed square?

Rafter Square Tricks – Speed Square –

## What is the diamond in a speed square for?

The Swanson Speed Square has a diamond cutout along the ruler that allows you to square lines and make sure they’re perfect. That diamond cutout can be used to make a notch, or a birdsmouth, for rafter work.

## How do you measure angles?

How to measure an angle with a protractor:

• Place the midpoint of the protractor on the VERTEX of the angle.
• Line up one side of the angle with the zero line of the protractor (where you see the number 0).
• Read the degrees where the other side crosses the number scale.

## Who makes the best speed square?

Comparison of our Favorite Products

Model Price Editor Rating
Swanson Tool S0101 7-inch Speed Square Layout Tool (Top Pick) Check Price 4.9/5
IRWIN Tools 7-Inch Rafter Square Check Price 4.6/5
DEWALT DWHT46031 7-inch Rafter Square Check Price 4.5/5
VINCA ARLS-12 Check Price 4.45/5

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## How do you cut Birdsmouth with a speed square?

Cutting a Storage Shed Roof Rafter Birdsmouth.wmv –

## How do you read a rafter square?

Speed square basics – How to use one –

## What is a plumb cut?

Plumb cuts represent the vertical or straight up and down cuts once the rafter is placed in position. It is used on the top, tail, and bird’s mouth. Level cut refers to the horizontal line after the rafter is set in place. It is used on the bird’s mouth and tail cuts.

## Do I need a speed square?

You Need to: Find out if something is level and if not, exactly how many degrees out of level it is. Example Applications: Use Speed Square as an improvised level for hanging cabinets, installing countertops, doors or windows or just about anything in your home that must be dead-level.

## What size speed square should I get?

What Size Speed Square Should You Get? Speed squares generally come in only two sizes – seven and twelve inch – making it much easier to choose. 7-inch squares are small enough to carry in a tool belt or apron, and it also works well as a miter for your circular or wet saw.

## How thick is a speed square?

Compare with similar items

This item Swanson Tool TA127 Thick One Heavy Duty Aluminum Rafter Square 16-Inch X 24-Inch Swanson Tool S0101 7-inch Speed Square Layout Tool with Blue Book #1 Best Seller
Sold By Amazon.com Amazon.com
Item Dimensions 29 x 26 x 2 in 1 x 8 x 8 in

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