Last three....

They make nice steps. I might add an aluminum step to the front of each of then to get on top of the box. They're sturdy as heck and came "keyed alike". I would have preferred about 6" narrower, but these were pretty reasonably priced. Should do the trick. I;ll keep the jack, grease gun, oils, etc in the bigger box and my cleaning stuff in the smaller box.

turned out nice.

A little research has shown that in a similarly styled/shaped/size aluminum box, that the weatherguards are 40%+ heavier than Delta, Deflecta, and the other common names. Thanks for the tip.

They also make some sizes more appropriate for outside frame mounting (taller, but narrower profile)...though they are comparitively expensive.

example:
Aluminum High Side box
16" high
13" wide (deep)
46" long

5 cu. ft./ 45 lbs./ $350
also available in black powdercoat

OR

18"Hx16"Wx46L"

8 cu. ft./52lbs./ $385

I'm pretty happy with how these turned out. 6"narrower would have been perfect, but I'll take the extra storage. The measurements on the smaller one is 18Hx18Dx24W and looks pretty good on the port side if the trailer. The other box is 18Hx18Dx36W and is mounted behind the spare tire. As I mentioned, a slightly narrower one was my preference, but the price and quality was good enough for me to go with them. The two boxes cost me less than $275.00. I have a little bit of money in the mounting brakets and the diamond plating, but I think it looks good. The boxes were pretty light too. I was able to carry the 18X36 with ease. I would say under 50 pounds. I'm looking for an aluminum step to mount on the backside of the bigger box so I can use the box as a step to get to the bow of the boat.

where did you get yours from dukenrock?

I got it from TruckPro. I pulled the invoices out and I was off by a few $$$. The 24" box is $160.00 and the 36" box was $185.00. Sorry. Still a good value compared to what I was looking at out there. Their number is (260)483-5115 if you want to call them and see if there are any near you.

That's a good idea. Thanks.

inner tube rubber works very well for this kind of thing, thin but tough to wear through or cut.