Available Sizes
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© Ibstock Plc. 2026
Product Description
Cast Stone Slip Cills are manufactured in accordance with BS 5642. Slip Cills of greater length than those shown in the tables are available and are made in more than one piece. Cills are built into walls below windows and other openings in a wall.
They are manufactured to replicate natural stone Cills and come in six standard colours: Bath, Buff, Holyrood, Portland, Glamis Red & Sherwood.
Cast Stone Slip Cills are designed to fit between the window reveals. They can also be used in bay windows. See also Slip Cills Corner Return to Bays.
T14-40 Slip Cills and SC12 Chamfered Slip Cills are designed for use with render.
All Cast Stone products are UKCA/CE marked where appropriate.
Please contact our team for Declaration of Performance. Email [email protected]
Get in Touch
To speak to a member of our sales team call 0333 234 3434 - opt.1, opt. 3, or send an enquiry.
Available Sizes
| Code | A | B | C | D | G | Max Length | Kg per Lin/M | Chamfered | Water bar groove |
|---|---|---|---|---|---|---|---|---|---|
| T11-40 | 150 | 140 | 105 | 40 | - | 1547 | 39 | No | No |
| BN11 | 150 | 140 | - | 65 | - | 1547 | 39 | No | Yes |
| T12 | 150 | 65 | 40 | 65 | - | 780 | 17 | No | Yes |
| T14-40 | 175 | 140 | 105 | 40 | - | 1547 | 44 | No | No |
Code: T11-40
A
150
B
140
C
105
D
40
G
-
Max Length
1547
Kg per Lin/M
39
Chamfered
No
Water bar groove
No
Code: BN11
A
150
B
140
C
-
D
65
G
-
Max Length
1547
Kg per Lin/M
39
Chamfered
No
Water bar groove
Yes
Code: T12
A
150
B
65
C
40
D
65
G
-
Max Length
780
Kg per Lin/M
17
Chamfered
No
Water bar groove
Yes
Code: T14-40
A
175
B
140
C
105
D
40
G
-
Max Length
1547
Kg per Lin/M
44
Chamfered
No
Water bar groove
No
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