Formula Help for yes/no

[cconley530]

I have a piece of steel that I want to only be shown when the object is between 24'-0" and 18'-0" If it's higher than 24'-0" it's off when it drops below 18'-0" it's also off, but in between those two heights I would like to see it. Can anyone help me with what I would say would be an if or and type of formula?

[quoined]

I assume this is for a family parameter formula? Also assuming the parameter name controlling it is named 'Length':

and(not(Length < 18' 0"), not(Length > 24' 0"))

The 'not' is in there so that they include 18' and 24', otherwise if you set the length to 18 or 24 the steel would turn off too. If you don't want to include 18' and 24' then you would have something like this:

and(Length > 18' 0", Length < 24' 0")