Legal bench height?

[Pan]

Just a quickie. I'm making my own bench to use in my new lifting shack because I don't really want to shell out £50 for one. My dad will do the upholstery for the padding. I need to know the legal (or perhaps even the IDEAL) dimensions for a bench. Got a lot of mixed information on the web and I've come up with L 47" x W 12" x H 17". How does this sound? If anyone has a bench and a tape measure laying around I'd appreciate some numbers :)

[RagingBull666]

Legal information for APF. Most feds are the same as this.

The bench shall be of sturdy construction for maximum stability and conform to the
following dimensions:
a) Length - not less than 1.22mm and shall be flat and level.
b) Width - 29-32cm
c) Height - 42-45cm measured from the floor to the top of the padded surface
of the bench without being depressed or compacted.
d) The height of the uprights on adjustable benches should be from a minimum
of 82cm to a maximum of 100cm measured from the floor to the bar rest
position. On nonadjustable benches the height of the uprights must be
between 87cm and 100cm from the floor to the bar rest position.
e) The minimum width between the insides of the bar rests shall be 1.10m.