Im planning to have a go at the dark art of wheel building but have fallen at the first hurdle. I have ran my Rims and Hubs through the DT Swiss spoke calculator and its given me 261.50 (rounded to 261) and 263.30 rounded to (rounded to 263) for the front and 262.70 (rounded to 262) and 261.90 (rounded to 262) on the rear. Im slightly confused to which size dt spokes i now need to buy. Looking at Wiggle it looks as though the spokes are only in even numbered lengths?
The Dt swiss site is never spot on mate – best thing (and cheapest usually, in this case) is to go to your local shop – they usually have spokes in stock and should be helpful. I did this earlier this year – in fact I ended up getting the LBS to build the wheels while I watched ( 😯 )