It could well be that all these ramps
are actually "standardised"
If the same logic is applied to these ramps as was applied to "standardise" mains electricity voltages across the
EU» then they all look the "same" to me. Mains voltages across the EU are all "standardised" at 230 Volts - but they're not..............they can be anywhere between 207 and 253 volts. So a "standardised" ramp could be described as being 2.3M in length but it could actually be anywhere between 2.07M and 2.53M in length. They may look different - but they really aren't. Simples.....