Cast-in collar accessory

Sure Snap collar extensions

Stackable 50mm rings that raise a Sure Snap cast-in fire collar to suit slabs thicker than 250mm. Available for every collar size, H65S, H110S and H150S, and cast in as part of the collar’s certified system.

Adds 50 mm per ring
Fits every collar size
Part of the certified system

Three Sure Snap cast-in fire collars raised with stackable 50 mm extensions

Collar extensions

What they are and when to use them

Adds 50mm of height. Each ring stacks onto the collar, or onto another extension, to match a thicker slab.
For slabs thicker than 250mm. The standard collar is 250 mm high; add extensions where the slab is thicker.
One per collar size. 65-EXTENSION, 110-EXTENSION and 150-EXTENSION match the H65S, H110S and H150S.
Cast in with the collar. Fitted before the pour as part of the cast-in assembly, not added afterwards.
Part of the certified system. Extensions are covered by the collar’s LPCB certification, not tested separately.

Specifications

Extension specifications

Stock codes	65-EXTENSION 110-EXTENSION 150-EXTENSION
Height	50mm per ring (stackable)
Use	Slabs thicker than 250mm
H110S extension inner Ø	131mm
H110S extension outer Ø	145mm
Material	Polypropylene
Fits	H65S, H110S and H150S collars
Cast in	With the collar, before the pour
Certification	Covered by the collar’s LPCB 1833a

Compatibility

Matched to the collar’s certified system

Extensions are part of the collar’s certified cast-in system and carry the collar’s LPCB certification (1833a). Match the extension to the collar size, then cast it in as part of the assembly.