Holonite supplies stronger window sills such as type W, X, Y and Z for traditionally designed buildings. These window sills hollowed out on the underside are intended as a means of cutting down on materials. These window sills are also available without a hollowed-out section for a surcharge.
Window sills, reveals and lintels are used as frame components. Window surrounds are available in many different sizes.
| Type | Width (B1) | Height (H1) | Height (H2) | Length (L) |
| Y | 125 | 50 | 45 | 2550 |
All measurements are in millimeters.
White
(1)
Earth brown
(5)
Light grey
(6)
Anthracite
(7)
Sand yellow
(11)
Dark grey
(20)
Brown-grey
(23)
Natura red-brown
(14)
Natura black
(15)
Natura sand yellow
(16)
Natura dark grey
(21)
Natura brown-grey
(25)
Tarente
(8)
Terra
(10)
Sabbia
(12)
Savona
(13)
Misto
(22)
Marrone
(24)