Quality product.  There are a few steps in the assembly in which two people are definitely needed.  But, myself (64) and my wife (64) were able to do it with an 8 ft step ladder and a step stool in a total of about 18-20 hours over 3 days.  Although the directions had no words, once I had studied and followed them, it became obvious how to assemble.  Structure and hardware are precisely fitted and marked. I placed it on my wood deck.  I had worried about the size since the space I had in width was exactly 10 ft between railings.  But, the ends of the posts are 5 inches from the top rail - perfect!  So, the space from side to side from the outside of the posts is 110inches.  Remember to not snug bolts on adjoining sections until all are in place - like I said, it is fairly precise.  And, there was an extra nut and bolt of every size in case you "dropped" one.  One crossarm was bent on end, but was easily straightened with a few slight taps of a hammer.  Overall, would highly recommend.