Our standard upstands are 100mm high (about 4 inches) and are usually in lengths of 1250mm. Normally upstands are used all round the kitchen surfaces, on all walls but not up against units.
For different height/length up-stands it is a case of ‘price on application’ as there is a lot more work/time involved for us to make them by hand and sometimes more wastage of materials thus considerably increasing the cost.