Single bed frame (Berkhamsted HP4)

Hi, grandpa is coming for Christmas and he can’t manage our stairs. We have a spare single mattress but need a bedframe too for him. It would need to be the 3 foot wide size please. Ideally, it would be easy to dismantle too, because we won’t be able to have the bed in our living room all the time. If you are getting rid of a bed, I’d be so grateful if you could message. Many many thanks.