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Appraisal number: 570 (2019)

Date issued: 18 Dec 2019

THRU-Brackets for Timber Framing


THRU-brackets are a range of formed galvanised steel brackets for reinforcing radiata pine solid timber and LVL floor joists (THRU-JOIST), studs (THRU-STUD) and top plates (THRU-TOP PLATE) to allow holes to be made for services.


THRU-brackets have been appraised for use as reinforcement to timber floor joists, studs and top plates at holes made for services. They are for use in non-specific design situations where floor joists, studs and top plates are specified within the scope of NZS 3604 up to and including SG10 and LVL10.

THRU-TOP PLATE brackets have been appraised for use in NZS 3604 wind zones up to and including extra high.

THRU-brackets are for use in internal, dry, protected environments.

Technical literature

  • THRU-Joist Fixing Note, version 2, 1/12/2016
  • THRU-Joist Double Joist Option, version 2, 1/12/2016
  • THRU-Top Plate, version 2, 1/12/2016
  • THRU-Stud, version 2, 1/12/2016

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder

Brace-It Ltd
Phone: 09 424 0916

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