I'm endeavoring to improve the Guild Hall furniture section as well. As with costumes, a lot of stuff missing. Check out the Sandbox - goal is to shrink lists on the main page as much as possible, and make it like the rest of the wiki as much as possible (same forms, different colors = COMPRESS! SQUISH!)
there is a ToC (table of contents) functioning in the sandbox, it's rooted to hidden headers in the table. This is for easy jumping to groups, so long as you don't sort anything in the table :P. If the table is sorted, the ToC basically breaks, but that's normal. Simply click the tiny "page" tab in the upper left to reset table, and thus function of the ToC.
EDIT to above: might actually not organize this way. Option B is to make it more like the Costumes table, with different "forms" of classification. EDIT: nah.
EDIT: removed acquisition column (since that information is readily available with a single click), removed Group column (since the hidden ToC headers sort that out already, as long as new furniture are added within the table's coding to the right groups), removed "interactive" column since that data is too small for a main table.
EDIT: put the group column back in, it's too useful for people who don't know how to reset the page.
Design inspiration: desire of players to find "plants" or "Creatures" etc.
Regarding individual pages, there's no consensus about which pics to use across all of 'em - tooltip or overworld (this is largely due to the release timeline of items vs. the UI update). So I've made tables that have both! Hooray! (See the "moorcroft furniture" or "winterfest furniture" pages for these tables). Textwise, the "available when" isn't consistent either - it varies between emphasizing "it's from Birdsong Emporium" or "it's unlocked when."
This project should bring everything together cleanly.
Thoughts?
EDIT: based on comments and in-game feedback, I'd say the table can be moved to the main page nao.
Just looked over the table of contents in the sandbox, as well as the individual pages you mentioned. It's very well organized and easy to navigate, however, I feel like you added too many different defining characteristics concerning grouping (you have three grouping characteristics here, namely "group", "classification" and "primary acquisition"). It isn't problematic, but, it seems a little redundant. I would imagine the best way to organize them is by method of acquisition, just to keep it simple.
Edit: Disregard for the time being. Having some difficulties viewing the current version of the sandbox.