Explanation of terms

Surface-mounted hardware

With surface-mounted hardware, the pivot components are visible when the sash is closed.

Concealed hardware

With concealed hardware, the pivot components are not visible when the sash is closed.

Non-standard windows

Non-standard windows are windows or patio doors with a non-standard shape:

• Round arched window
• Segmental arched window
• Triangular window
• Pitched window

Sash

The sash is the movable element of a window or patio door, which is mounted in the frame.

frame

The frame is the fixed element of a window or patio door, which is mounted in the wall opening.

Comfort mushroom cam

When the sash is closed, the comfort mushroom cam engages in the striker plate.