Window Stays

A window stay is the slotted arm that controls how far a casement window can open and holds it in position at the chosen angle against wind pressure. At the DIY Hardware Store, our window stays cover the standard casement stay and peg formats used on timber casement windows throughout the UK, in the sizes and finishes most commonly needed for new installation and replacement work.

The casement stay consists of a slotted or pierced bar fixed to the bottom rail of the casement, and a peg or pin screwed to the window board or inner sill that locates in the slot to hold the window at the desired opening angle. The standard patterns - bar stay, rat-tail stay, and acorn stay - vary mainly in the decorative profile of the bar, with the mechanical function identical across all types. Bar length determines the maximum opening angle the stay will allow, and should be matched to the window size and the intended ventilation use.

Available in polished brass, satin chrome, and antique finishes at the DIY Hardware Store, sold in pairs with matching pegs for complete installation.

  • Slotted bar holds casement open at chosen ventilation angle
  • Peg locates in slot to resist wind pressure
  • Bar stay, rat-tail, and acorn decorative patterns available
  • Bar length determines maximum opening angle
  • Polished brass, satin chrome, and antique finishes
  • Sold in pairs with matching peg pins