Hi, great looking deck... what is size of the rails, i like their chunky look...and how far is span between the post supports? Are they strong enough? AND, what is between the center upward posts (which aren't really posts i see), it looks see-through and not like the others from the photo showing the deck straight on...thanks for any info, my hub and i trying to creat something like this ourselves, but without that hardware not sure we can accomplish the look....