Transitional credit in case if work contract service

" in GST can he claim credit of excise duty on stock of inputs ,if duty paid documents are available.'

Yes........ fill form TRAN 1

Could you please guide whether he will get the credit of only inputs in stock or the inputs which has already been used in building (i.e. WIP).i..e For example: Builder constructed half floor of a building as on 01 July 2017. the bricks, cement use in that half floor would  be considered as inputs contained in semi finished goods?