Access Hatch for solid shower tray... under tiled floor?

[H0ckeynut]

I'm totally going for it with my bathroom, it's been gutted, even plaster off the walls, to be dot & dabbed.

One thing I've started to worry about though, is the resin shower tray.

I've only recently realised heard that I'd need an access hatch, to reach under the resin shower tray.

As I've read here and here....
http://www.homebase.co.uk/webapp/wc...erviceArticles/how_to_fit_shower_cubicle.html
http://www.lets-do-diy.com/Projects-and-Advice/Bathroom/Shower-systems.aspx

Installation is a different matter, it's just maintenance why I might need it. As the ceiling in the kitchen below is ripped down at the moment (different story, house needed lots doing!!), so access for initial installation would be easiest via that.

I can understand why it's a good idea, in case I ever had a problem with the waste. But I was planning on ceramic tiling the floor, so how could I do a access hatch?

The floor at the moment is regular floorboards.

Also on a similar thing. Would you usually run the waste under the floorboards (which is obviously above the kitchen ceiling). It's one of those quite low profile fast flow wastes.

 

[kevplumb]

if you fit a proper shower trap the waste is acessible from above you don't need an acess hatch