Multiple conditional using AppleScript in Indesign - won't work?

Question

When I enter in a height and width of, say, 5 inches, it returns with a build size that doesn't make sense, according to the logic gate I built. Here's a stripped-down snippet of the code I wrote that should work in InDesign CS6. Any help would be greatly appreciated.
tell application "Adobe InDesign CS6"
activate
set myDoc to active document
set origLevel to user interaction level of script preferences
set user interaction level of script preferences to interact with all
set myDialog to make dialog with properties {name:"Make Template", can cancel:true}
tell myDialog
tell (make dialog column)
tell (make border panel)
tell (make dialog column)
make static text with properties {static label:"Width:", min width:60}
make static text with properties {static label:"Height:", min width:60}
make static text with properties {static label:"Bleed:", min width:60}
end tell
tell (make dialog column)
set myWidth to make text editboxes with properties {edit contents:"", min width:60}
set myHeight to make text editboxes with properties {edit contents:"", min width:60}
set myBleed to make text editboxes with properties {edit contents:"", min width:60}
end tell
tell (make dialog column)
make static text with properties {static label:"in", min width:0}
make static text with properties {static label:"in", min width:0}
make static text with properties {static label:"in", min width:0}
end tell
tell (make dialog column)
make static text with properties {static label:"", min width:25}
end tell
end tell
end tell
end tell
set userResponse to show myDialog
if userResponse is true then
set docWidth to edit contents of myWidth as string
set docHeight to edit contents of myHeight as string
set docBleed to edit contents of myBleed as string
destroy myDialog
else
destroy myDialog
error number -128
end if
set bigDim to docWidth as string
if docHeight > docWidth then
set bigDim to docHeight as string
end if
set buildSize to 1
if bigDim > 216 and bigDim ≤ 432 then
set buildSize to 2
else if bigDim > 432 and bigDim ≤ 864 then
set buildSize to 4
else if bigDim > 864 and bigDim ≤ 2160 then
set buildSize to 10
end if
set newWidth to (docWidth / buildSize)
set newHeight to (docHeight / buildSize)
set newBleed to (docBleed / buildSize)
tell myDoc
set document bleed top offset of document preferences to newBleed
set page width of document preferences to newWidth
set page height of document preferences to newHeight
end tell
set user interaction level of script preferences to origLevel
end tell

Answer 1

This solved it. I needed to swap the variable with the number. I didn't know that was a rule...
set buildSize to 1
  if 216 < bigDim and 432 ≥ bigDim then
  set buildSize to 2
  else if 432 < bigDim and 864 ≥ bigDim then
  set buildSize to 4
  else if 864 < bigDim and 2160 ≥ bigDim then
  set buildSize to 10
  end if