There are a lot of materials you could use for making the table top. I normally use 3/8” Baltic Birch with a 1x1 clear grain Pine or Poplar perimeter. Side tables can be made to run lengthwise along your trailer or perpendicular.
Here is the adjustable leg; adjusts from 27" - 44" and has a strong flip lock adjuster that easily supports 135 lbs. You simply attach the pivot bracket to your table bottom and then the leg assembly to that.
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/leg-flip2_zpsntyo7o4m.jpg)
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/leg-flip1_zpszac9lilu.jpg)
Here is the two-piece mating aluminum attachment bracket, they are 30" long.
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/table-track-profile_zpseqnczvsc.jpg)
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/table-track-closeup_zpsicglp1v9.jpg)
Here is the leg retainer used when to keep the leg from flopping around during transport.
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/aleg-bungee-new_zpsldspjxll.jpg)
Here are a few examples of tables made with the kit.
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/cu-bill1_zpsldiwgdk1.jpg)
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/cu-Chils-ST_zpsxwpwbzzn.jpg)
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/cu-gerry2_zpsimsrps7t.jpg)
![Image](http://i1105.photobucket.com/albums/h343/schaney2/Trailer%20Outfitting/EB-side-table_zpsmxghvnfo.jpg)