I left FLYFF at around a month after onset of the Housing system (which was v13) and when I left, there’s still no furniture with stats.
Visiting the game again, these stat-laden furniture are now available at the Flyff Shop:

They sell for around 300 coupons, which is equivalent to 15Php. Not bad for 7 days worth of additional stats. They typically sell for 15M (those that adds to stats, looks like tables and closets costs a lot more) in-game, and in my opinion, one of the best returns in terms of Penya to PhP ratio (which is 1M per Php or up to double for the Table and Closet) compared with your typical Premiums, like Azria tickets (which sells for only around 800k per Php).
However, with the Flyff Shop’s not-so-stellar information system, I’ve had to do some extra research on what stat boost each furniture gives.
Here’s a table on what they do:
| Modern Closet |
Def+150 |
| Modern Bed |
Str + 5 |
| Modern Sofa |
Def +6, Sta +5 (which adds 10 more def) |
| Modern Cabinet |
Dex +5 |
| Modern Dresser |
Int + 5 |
| Modern Table |
Atk + 200 |
If you’re the type who spends on FUN and FOR cards, then the Table and Closet would be a better alternative and you can save those FUN and FOR cards for one of those hardcore grinding sessions.
Have fun grinding.