We can’t help you with that annoying little critter behind the filing cabinet, but we’ve got you covered when you need one on your roof curb. Although this fitting looks like you need to enter a lot of information, you can enter as few as 4 dimensions by using as many defaults as you can.  See example A.  You can set 13 fields from the default tab (11 shown in blue) and then both cricket fields (2 shown in yellow). 

Example A

Here’s how the cricket works.

• The cricket width (D) must be less than the hypotenuse of the cricket. This value is less than the top flange (B) value.
• The cricket depth (C) must be less than or equal to the bottom straight (A).

The other things that you need to know about this fitting are on your Options tab. You have the option to make the cricket as a separate piece or by default; the cricket is incorporated into blanks 3 and 4.

If you are welding this fitting, you probably want to have Straight Wrappers checked (see example B) so you can make a much shorter weld then if it is cut with a mitered corner (see example C).

Example B

Example C