How do you add blockout lining to existing sheer curtains?

There are three ways to add blockout lining to existing sheer curtains.

1. Order and install single blockout curtain lining on separate tracks behind or in front of the sheer curtain track.
2. Sew blockout lining to the back of the existing sheer curtain fabric, creating a lined curtain utilising the same curtain track.
3. Clipping blockout lining Sfold curtain studs to the back of existing Sfold curtain pendants so they sit on the same curtain track. Note that our Sfold curtains pendants can hold two fabrics back to back