Sash Run Up Block

SKU: Sash Run Up Block
Please select from the options below:



  • Sash run up blocks are screwed into the frame with the slope facing the opening light or sash.
  • If fitted to the base or sides of the window frame the run up blocks help with vertical alignment of the sash upon closing the stormproof window.
  • When fitted to the top or head of the frame the run up blocks act as an anti-lift block for increased security.