Wow. I had no idea about any of this topic.

I didn't learn to scrap at work stations for a long time. I was regularly dropping items to scrap them for the first 15-20 hrs of game play or so. When I found out you could do it at the workshop, I kicked myself.

And I have only really built a lot at Sanctuary, other settlements are small fries.

At Sanctuary, I have a fancy 3 story with lots of stuff in it, pool table, juke box, two stoves, kitchen cabinets, 10 beds, couches, chairs, kitchen furniture, two magazine racks with magazines, lights all over the place, Nuka Cola machines, artwork, flags, rugs, bobblehead stand, bbq grill on 3rd floor walkout porch, mounted animals, basketball hoop, chem lab also on walkout 3rd floor porch, etc, etc. Also, have 18 settlers or so I think. 4 working the gardens for 24 units of food, 6 running shops -2 of which are emporiums, 2 scavenging, 1 operating a bombardment station, and the rest are provisioners managing supply routes. I have 4 of the Largest water purifiers, and one small one, 4 generators (1 wind), about 7 or 8 turrets, the gas station sign, 4 sets of power armor standing around in the garage, 4 or 5 water pumps,......

never once noticed anything like a limit. Never even heard of it before now.

I must be lucky to have scrapped on the floor, then. Yay!

edit: I usually have about 77 or so purified waters when I return home to barter/rest/craft. Sells for 10 caps each. now I don't need to sell armor, weapons to my merchants, I just scrap them all and live off of my water bottling business.