Johnson Level & Tool Mfg. RAS-1 - Manual (Page 3)

1
The Johnson® Rafter Angle Square
Thank you for purchasing the Johnson® Rafter Angle Square. Since
1947 Johnson Level & Tool has been developing solutions to help
professional tradesmen improve their work. Our products are trusted
by professionals worldwide to work more accurately, more quickly
and more reliably.
This reference book will serve as a guide for providing basic rafter
and angle layout information through various illustrations and tables.
Johnson Level & Tool is not responsible for any errors or omission
with the content of this book. The information outlined is to be used
as a recommendation however other methods not listed may be
acceptable practice.
The Johnson® Rafter Angle Square is available in 7 inch and 12 inch
sizes to accommodate various material dimensions.
Here’s what makes Johnson® Rafter Angle Squares fast and efficient:
• The new and improved 7 inch has continuous scribing grooves
from 1 inch through 5-1/2 inches. (Please see illustration 1 on
page 2)
• Easy to read angle scale from 0° to 180°.
• One number layout for: Roofs, solar panel supports, stairs,
cabinets, trim work and many other layout projects.
• The rafter scales are laid out mathematically to avoid time
consuming calculations.
• The 12 inch has continuous 1/4 inch scribing grooves from
1-3/4 inches through 9 inches.
• Both rafter angle square models serve as a saw guide for
fast cuts.
For additional information on the Johnson® Rafter Angle Square
family of products please visit www.johnsonlevel.com