How much cake weight with 4 of the 13.75 inch Wilton Roman pillars on a 14" plate hold?

I've done 3 tier cakes on them. No idea how heavy the cakes were, but these things will hold a lot of weight. They "seem" wobbly when they are just sitting there all alone, but when the cake is on top of them, the weight of the cake holds them in place.

How much cake were you planning?

4 tiers 14" 12" 10" and 6" + topper.

oh yeah ... you'll be fine!

Thanks again.