chris o'brien company pty ltd

"CHRIS O'BRIENCONSULTING CIVIL

& COMPANY PTY LTD& STRUCTURAL ENGINEERS

ABN: 69 006 752 656

Reference No: 13330

• Project No: 30413

15th May, 2013

The ManagerMega Building IndustriesPO Box 475DIAMOND CREEK VIC 3089

Attention: Robert Lawson

Dear Sir,

RE: PROOF ENGINEERING OF MEGA ANCHOR DESIGNCERTIFICATION OF DESIGN - COMPLIANCE

We refer to our Drawing No. 30413 - Sheet S1 - S7 inclusive (all dated 10105/2013)showing the design for the following Mega Anchor items:

MA1#MA1#1MA2#MA24#MA3#MA6#MA7#

Heavy Duty AnchorPost AnchorStandard AnchorSquat AnchorBrace AnchorStandard Brace BracketHeavy Duty Brace Bracket

Sheet S2Sheet S3Sheet S4Sheet S5Sheet S6Sheet S7Sheet S7

Details of the Anchors and Brackets have been supplied to us by Mega BuildingIndustries. Based on their information the anchors and brackets are consideredsatisfactory to support the safe working loads as listed on our Drawings according toaccepted sound engineering principles and the requirements and recommendations ofthe following codes:

AS 1554 - Part 1 - 2011:AS 3566 - 2002:

Structural Steel Welding CodeSelf-drilling Screws for the Building and ConstructionIndustry CodeSteel Structures CodeAS 4100 - 2012:

Should you have any queries please do not hesitate to contact our Principal Engineer,Chris O'Brien, by telephone 03-5174 9911.

Yours faithfully,

~~.C J S O'BRIEN, FIEAust CPEngfor CHRIS O'BRIEN & COMPANY PTY LTD

All correspondence to:P.D. Box 18Traralgon Vic. 3844

13A Church StreetTraralgon Vic. 3844

Telephone (03) 5174 9911Facsimile (03) 51740011