David Ware wrote:
I'm in need of advice. I'm just about ready to lay a solid oak T&G
floor in our lounge, the boards are 200mm wide (and 20mm deep) and
I've read that face nailing is recommended for boards this wide and
I'm not too sure how this would look.
snip
Thanks for any help you can give,

I have not done this, but I have a screwfix catalog, so I am qualified
to give DIY advice

I wonder about screwing to the joists 1*1 battens, one on each side.
Predrill holes in these to give 4 or so per board.
Using right-angle driver, and square drive/torx screws, screw in floorboards
from the underside.

(Personally, I'd use my laptop+webcam+light to give nice view of working
area, though it could be done the other way)

The purist will probably insist on using nice brass straight screws, and
lining up all the slots

However, I don't see anything that fundamentally wouldn't work.
And it'd be easy to get up if needed. (as long as you knew that this was
done).

I suppose the same technique could be used by predrilling holes at 45 degrees
from the top of the joists, and going in at an angle, with the aid of a
burly helper standing on the top.

(ensure correct length of screw selected, or burly helper may be visiting A+E)