Northern Greenhouse Sales
Polyfastener or Cinchstrap?
Choose Polyfastener for places where you want to open & re-close the poly. Generally used on perimeters only. The sheet of poly must come out the wide-lip side. If used as a seam, be sure both pieces of poly come out the wide-lip side. One piece then crosses over the Polyfastener to go back to the direction you want.
Choose Cinchstrap for places where you want to nail poly on and leave it there until replacement time or for a clean white inexpensive sliver-free lath for any project large or small. Most similar greenhouses use Cinchstrap.
Before Ordering: Please see our Vital Measurements chart for important ordering and measurement information.