<a href=showthread.php?s=&postid=10011620#post10011620 target=_blank>Originally posted</a> by chris wright
Did you fill the cores of the blocks? When you say openings up, I assume that you would be able to fill the blocks. If you have not filled the blocks, you may want to look into doing it. The blocks may be strong enough, but core filling them obviously makes them stronger, but also locks the blocks together better.
I would contact your supplier of the blocks and run it by them, to see if they believe that the product will sufficently take the weight. My guess would be yes it will, concrete blocks do take a good load.
Hope this helps, let us know what they say.
Cheers
Chris.