[Bigness]

Pretty sure (and as a couple others have said), the weight limit is simply for snowfall, not transport. It's advertised as 200 pounds. I'm thinking either a cross-bed rail (plus/minus $200 on Amazon) or maybe even a roof-top carrier secured onto the rails using the t-slot. I definitely wouldn't haul anything on the cover. I've dropped 30 pound boxes on it going to FedEx while I opened the tail gate and the cover wobbled a lot.

Maybe something like this bolted into the t-slot would work (eBay).

edit I was curious, so I actually bought one to try

 

[Bigness]

View attachment 17195
[/QUOTE]

Yeah that was my backup plan. Just a little bit more that the setup I was trying to do with the boxes on the tonneau. I'm glad I asked before trying it ha.

I found these load bars that are not too bad. Def more than what you showed, but still half the price of a thule or yakima setup to mount to the t-slot tracks on the tonneau.

- Sherpa Universal Load Bars

I'm trying to see if there are any boxes like the Yakima DeepSpace 10 that are about 48-50in in length vs 60in. I think if I mounted one or two of these over the bed they would stick out about 10-12in past the back.

- Yakima DeepSpace 10

Alternatively I could go with the storage bags w PVC frame I originally found and then look for a basket they could fit in over the bed. Would just want to find a basket that has an interior dimension that is as close as possible to the dimensions of two of those bags together.

I was wondering if one of the roof rack baskets would work for you. I did order the ones I posted above and should have them next week. I'll post pics as soon as I get them on (didn't know I needed then until I saw this thread )

 

[Bigness]

View attachment 17195

I was wondering if one of the roof rack baskets would work for you. I did order the ones I posted above and should have them next week. I'll post pics as soon as I get them on (didn't know I needed then until I saw this thread )
[/QUOTE]

So I got the rack and they will fit nicely bolted into the t-slot. I just have to get to Lowe's to buy the bolts I'll need. Pictures hopefully this weekend.