http://www.britishairways.com/travel...y/public/en_gb

...and yes, that would be each way if carried as extra piece of luggage in addition to your regular allowance. Our snowboards & backcountry skies (as one package) regularly make the TXL-LHR-YVR trip in the winter & BA has yet to charge us for them. We travel with one other piece of luggage to skiing trips, usually CW redemption.