I can't seem to find any!

try looking for baby stair gate and you will see hundreds everywhere!  Argos, toys r us, online stockists etc etc

As suggested argos do a dog gate.  Will find the link.  Are you looking for a tall gate or normal size?  If so a normal bagy gate generally does the trick.

Hi Jan,

Pets at home do a great one, it's taller than a baby stair gate

Max

Mine can jump the normal size baby gates, so we have a dog gate from Lindam on the stairs as they can't get over that - from Argos.

You may find something on ebay, friday ad or freecycle if you aren't bothered by it being new.

http://www.petplaypads.co.uk/accessories-7/safety-dog-gate-196.html

I googled tall gate and loads come up on google - Argos I couldn't find the Lindam tall gate although poss. the picture isn't the right one.

This one seems good value - will stop and leave you to it now!

http://www.netpetshop.co.uk/p-22191-bettacare-dog-gate-safety-pet-gate-extra-tall-41.aspx

got mine form Argos, really cheap to.

Gosh thanks for all the replies folks!!!  Bob jumped a 3' gate when he was 4 months old, so I suspect I need a tall one, lol!  This has been really helpfull.