>>2999573>at least Miia's weight is spread along 5-6 metersFor comfort and convenience, she probably coils up on herself to avoid tripping the others or getting trampled on. So when she's not moving between rooms, that's still nearly half a ton spread across something like 6'*6'.
400 to 499*2.24=896 to 1117.76lb
36sqf.
896/36 to 1117.76/36=24.8889 to 31.0489=~25-31.05psf
Cerea's load profile would be something akin to a chair with a very long seat and high back. However for convenience, we'll assume it's equally spread across all four legs. She's approximately 3.5' long by 2' wide.
530 to 539*2.24=1187.2 to 1207.36lb
7sqf
1187.2/7 to 1207.36lb/7=169.6 to 172.48 psf.
>For a residential deck, the code requires it be designed to support a minimum 40-psf live load. The live load is the external force applied to a deck due to the activities of its use. People, furniture, and any other movable, physical object on the deck are covered under live load.Assume that deck loads apply to the second storey as well. First storey should generally have a much higher load limit.
So Miia should be alright on her own, though if her bedroom is on the second storey, combining her mass with her bed would push it near the limit.
Aruji-dono must have some industrial-strength flooring/stairs though, given that Cerea was able to get to his second-storey bedroom to save him from spiderape.