To give your idea a chance, consider moving your meeting to a room conducive to a different format. There's just too much risk in the traditional board room setup. So before you commit to that resource in your calendar, weigh the following attributes against what you aim to accomplish:
1. No eyes on you.
If this is part of your persuasion, then by all means, press on. But if you expect to command attention, think again. The board room setup encourages audience sight lines (except for one) to be everywhere BUT in your direction. Your group is likely to look at each other, their phones, the drapes... any other fixture in the room as often as they look at you.
2. A/V = MIA.
Again with the sightlines. Imagine how easy it will be to see your content through the back of someone else's head. For the majority of participants on the long edges of the table, this setup requires leaning either in or out, which can be uncomfortable. Discomfort is motivating, but not when it's distracting from your story.
3. Participants can "hide" in the board room.
Keeping in mind your number one job as a persuasion designer – opening the lines of empathy – consider the disadvantage of being denied eye contact. An emotional connection requires eye contact for 60% of a conversation, so how will you navigate that? Since most audiences report losing interest within the first 20 seconds of a presentation, where could you host this meeting to better capture attention?
Now that we know why NOT to occupy the board room, is it ever okay to use it? Of course it is. We just don't recommend it for most persuasive communications. Here are a couple of times it's best to book it:
Status meetings, daily stand-ups, jeep-bonnets, round tables... However you might refer to these sessions, have them in the board room. Imagine the passing of the torch from one chair to the next as audience members assume the role of presenter. The board room enables them to address each other as peers, which taps into its original purpose: Aligning people from different perspectives to a common goal.
If reaching your meeting's goals requires people to talk openly with each other, the board room is a solid choice. Kickstart the discussion by standing and walking all the way around the table a couple times (not more than twice or you'll make them dizzy), subliminally asking the audience to follow you until you sit. This not only provides a great transition into their roles in the meeting, but also avoids those pesky sightline pitfalls.
For a quick reference guide to effective room setup, please download this helpful worksheet: Common Room Arrangements and the Messages They Send.