Seedling Light Stand, Part 2

Well, at least I have some pictures to add for the assembly!  And I have to admit, the assembly IS well designed and simple to do.  The upright posts have "keyholes".  Think of a hole with a narrower slot below.  The horizontal side pieces have mushroom heads that fit through the hole and the "stem" of the mushroom heads fits the slots below tightly.  The connections are indeed "rigid".  You tap them firmly in place with a hammer (gently - I used a 2x4 and a deadblow hammer).  So far, so good. 

 This is the old plant light stand.  I am taking it apart as I transfer the lights to the new one.  The old shelves had a 2 bulb fixture.  The new ones have TWO 2 bulb fixtures per shelf.  

Here are the old light shelves being disassembled.  I really over-engineered the previous light shelf.  I am learning to back off on the over-engineering.

Note the plywood shelf.  I made those.  It's tricky.  The plywood shelf supports the light fixtures below.  But since the supporting bolts stick up over the plywood, I needed to countersink the provided fancy shelfs from below.  In other words, the top cover shelf has a hole in the bottom where the fixture bolts stick up.  Does that make sense?

This is the new light shelf.  There are now 2 light fixtures per shelf (4 bulbs).  The fancy shelf sits on the light fixture supporting plywood

In this picture, you see two shelves assembled.  The green box is a support of the light fixture so I can feed the support bolts from above.

Each of the rigid steel horizontal bars have a double curve to them.   A lower curve is for strength, the upper curve has a flat surface that supports the shelving (a 2'x4'x3/8" engineered material).  I initially thought it was a sort of rubber/resin, but it is pressboard.  The instructions said it would support 800 poubds per shelf.  It also said not to stand on it.  Huh?  I only weigh 160 pounds.  They must have loaded the shelves VERY carefully to support 800 lbs  if I cant stand on it.  Well, I didn't buy it for the weight capacity.  Plants aren't all THAT heavy!

Next. I complete (almost) the whole shelf rack...