WiFi boosting

[thinfourth2]

I'm a Mac owner i am stupid

Right thats out the way

I have a WiFi network based round a Apple time capsule and a couple of airport expresses

I want to extend this network so it is useable outside the house in the garden and out buildings in our plot which is about 2 acres

So recommendations please

[thinfourth2]

Well the outbuildings are but the lawn ain't