All posts are pressure treated (tanalised) unless stated otherwise.
Here is a list of the abbreviations used in the post descriptions:
TD = Treated or tanalised PTD = Pointed - This indicates that one end of the post is pointed WT or 1W/Top = Weathered Top, or 1-Way Weathered Top - relates to the top of the post, which is cut at a slight angle (in one direction) 4WW = 4-Way Weathered Top - This usually relates to gate posts that are finished in a shallow pyramid shape on the top UPTD = Unpointed, i.e. the post is flat at both ends