Hello, hoping the gardeners on here can answer some probably slightly daft questions 
We had a gravelled section at the front of our house which we really disliked, have pulled it all up and built 2 smallish raised beds about 12" high, with a path around/between.
We haven't filled them with soil yet - we took up all the weed membranes that had been under the gravel and the soil is very tough, should we break it up with forks/spades before we top up the beds?
Also what line of soil should we top it up with (our allotment book just says the top 10" should be "topsoil" and are their any good places to bulk buy this?
Thank you!