Goodwill Engineering – Cavity Ties

Cavity Ties

Made from 470gm galvanised wire or 316 marine grade stainless to conform to AS 3700 - 2018. All wire used is either 3.00mm, 3.15 mm or 4.00 mm diameter and these sizes have been used when tested to meet the requirements of AS 3700-2011. A cavity tie is designed to tie together two leaves of masonry that are separated by a clear cavity of any width. Length of ties is determined by adding Cavity Width + plus a minimum embedment of 50mm in each leaf as detailed in AS3700-2011.

Note: At least 50mm must be embedded into the mortar over each brick.

Our type A Medium duty cavity ties have been standards tested for your peace of mind.

Download our 1025EHG test results
Download our 1103SS test results

Wire Diameter Overall Length	Stainless Steel R4	470gm2 Wire R3	Classification	Cavity Width
3.00 mm x 170 mm	Yes	Yes	Medium	50 mm
3.15 mm x 200 mm	Yes	Yes	Medium	50 mm
3.15 mm x 250 mm	Yes	Yes	Light	140 mm
3.15 mm x 300 mm	Yes	Yes	Light	200 mm
4.00 mm x 180 mm	Yes	Yes	Heavy	50 mm
4.00 mm x 200 mm	Yes	Yes	Heavy	100 mm
4.00 mm x 230 mm	Yes	Yes	Heavy	120 mm
4.00 mm x 250 mm	Yes	Yes	Heavy	140 mm
4.00 mm x 300 mm	Yes	Yes	Heavy	200 mm
4.00 mm x 360 mm	Yes	Yes	Light	250 mm
6.30 mm x 180 mm	Yes	N/A	Heavy	50 mm
6.30 mm x 200 mm	Yes	N/A	Heavy	100 mm
6.30 mm x 230 mm	Yes	N/A	Heavy	120 mm
6.30 mm x 250 mm	Yes	N/A	Heavy	140 mm
6.30 mm x 280 mm	Yes	N/A	Heavy	180 mm
6.30 mm x 300 mm	Yes	N/A	Heavy	200 mm
6.30 mm x 350 mm	Yes	N/A	Heavy	250 mm
6.30 mm x 400 mm	Yes	N/A	Heavy	300 mm

Classification of tie

MEDIUM DUTY / HEAVY DUTY Classification and diameter of ties should be determined by a qualified architect or engineer.

Please note

The user is to determine that the correct tie is selected to comply with structural requirements and to comply with all relevant building regulations and codes. Cavity wall tie shape must not be altered. Spacing of ties should be in accordance with design requirements of the structure and in accordance with relevant building regulations and codes. Spacing of ties should be in accordance with design requirements of the structure and in accordance with relevant building regulations and codes.