The only parameters that need to be changed are Length, Width, and Depth. Length is always larger than Width. This design works fine for most cartons that have a width that is greater than 1.25".

Documentation
The main parameters to key in are:
Length
Width
Depth
Length is always larger than Width.
There are parameters for design number, customer name, etc.
Fill in the pertinent data, and you have a sleeve built in inches.
The file also contains a 4up layout component called 2022005B_LO.
Thanks to @forresto for the math help
Thanks to @forresto for the clip modifier
Thanks to @forresto for the dashed modifiers
Updates
02-24-2022 - Made Public
The Sleeve is pretty basic. It is primarily used to slide over a corrugated shipper to give the product a better look, and to allow printing on paperboard verses corrugated.
To make or sell physical items upgrade to Cuttle Pro.