Posts or off cuts. (Taffs Well CF15)

I am reinstating my back garden and in cutting back bushes and brambles many of the "posts" require replacing.
  I require all lengths but possibly longer than 2 foot, although short ones are used to repair the steps hold shuttering for concrete.
  Can collect when suits you, Square or round posts or longer feather edged for repairs to tree house.
  Thank you for reading.