Full Story Addition

Fully assembled additional stories are available for your MSS12R purple martin house - and it's an easy installation! Simply remove the roof and ceiling of your MSS12R house and bolt the pre-assembled 6 compartment story in place with four screws and nuts. Bolt the ceiling in place with your original screws. Re-install the roof and you are done. Add to existing houses or add to a newly purchased MSS12R. Two floors max for the rope lanyard system. If you add one or two stories to your MSS12R - the rope lanyard system works perfectly. Adding three stories to your MSS12R (30 room house) necessitates the use of our WCK Winch Conversion Kit - to safely handle the extra weight.