I've googled until my brain is fuzzy, I need a gate for the bottom of our stairs, pressure fit (house is very old walls are a bit sandy when drilled so wouldn't be secure), it needs to attach to the banister post which is only flat at the top and bottom so needs to be 66cm wide and 83-90cm tall. I can find taller and shorter, I can find the right height but too wide. I need the Google magic of MNers!