As of now there's no limit on the number of words for paper petitions.
For electronic petitions, the committee has set a limit of 250 words. That's for the grievances and the prayer.
On May 26th, 2015. See this statement in context.
May 26th, 2015 / 11:25 a.m.
Deputy Principal Clerk, Journals Branch, House of Commons
As of now there's no limit on the number of words for paper petitions.
For electronic petitions, the committee has set a limit of 250 words. That's for the grievances and the prayer.
See context to find out what was said next.