Rounding up length attribute

[Anonymous]

I'm trying to round up the length attribute for dynamic blocks. I've attached a CAD file as an example with the issues clouded. I want to jump the number to the next whole number. I figured it was something with the field command but I don't see it. Any help would be appreciated. 

[Libbya]

As far as I can tell, your example file does not contain any non-whole numbers or any fields.  

Use a formula field.  In the formula use a blockplaceholder field with the value of the linear parameter.  Add 0.5 to it.  Round that number.  The result will always be the next highest whole number.