In reply to bouldery bits:
> I have 3m straps for the surfboards.
> On Wednesday, I was cursing the lack of 5 m straps whilst trying to tie fence panels onto the roof rack.
> You never know when 5m will be handy!
I've always joined 2x 3m ones together when I've needed longer. The only time I've ever bought 5m straps was heavy-duty ones on behalf of the Scouts - perfect length for strapping kayaks onto the trailer.
Of the 2 pairs I bought, I'll definitely keep one set as 5m, just in case.