On Thu, 13 Jan 2000, Allen Dick wrote: ... Since 0.200-0.062 = 0.138" ... I don't think you want to subtract the .062. I believe what you have is: space + wire =.200 space + .025 =.200 space =.175 I measured one of my commercial wire excluders ( my garage is only 50' away) and get a range of .168 - .171 for the spaces. The average is .168, a little closer than the 5 mesh screen. This is probably made up for by the great length between cross wires of the regular excluder. Best regards, Donald Aitken Edmonton Alberta Canada