PECO OO Gauge track includes the standard Code 100 rigid Setrack plus Streamline flexible track available in a variety of rail codes.

Rail code is the rail height in thousands of an inch. The smaller the code number the finer the rail profile. Code 75 is generally refered to as finescale in OO Gauge and is suitable for more modern rolling stock.

Both Hornby and PECO Setrack are Code 100 and are easily joined together. Code 100 Setrack and Streamline track can be used with new and older rolling stock.