"Ignoramus25972" wrote in message
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On 2011-02-09, Jim Wilkins wrote:
On Feb 9, 12:34?pm, Ignoramus25972 ignoramus25...@NOSPAM.
25972.invalid wrote:
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To that end, I would need to drill an estimated number of 112 holes,
probably 9/16" or 5/8" diameter each, in 3/16" steel tubing.
....
i

3/16" wall thickness?

Yes

Round or square tubing?

Square


Or use Telespar/Telestrut...