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Designed to strengthen I-joists when holes are required to be cut in locations not normally permitted.

The IHS is designed to strengthen I-joists when holes are required to be cut in locations not normally permitted.

Material

Pre-galvanised mild steel

Finish

Z275 Galvanised

Features & Benefits
  • Allows holes to be cut 50mm from bearing point, which allows services to run close to external walls
  • Variable hole sizes from 150mm to a maximum width of 250mm
  • Supplied as 2 sets of 2 interlocking plates (1 set per side of I-joist) which always allows the IHS to be fitted, even when services are already in-situ
  • Helps to eliminate expensive and time consuming joist trimming for pipe runs
  • Can be used on single and double ply I-joists
Installation

Disclaimer:
Before installing this product prior approval from an engineer or I-Joist manufacturer shall be required.

  • Each IHS consists of 2 sets of 2 interlocking plates with one set required for each side of the I-joist.
  • The outer edge of the holes cut into the web of the I-joist can be a minimum of 50mm from the inner face of the blockwork.
  • Holes can be cut into the web of the I-joist before or after installation of the IHS.
  • Holes must fit within the internal aperture of the IHS.
  • Place the IHS onto the I-joist so that the top and bottom sliding flanges are aligned vertically central onto the top and bottom chords of the I-joist.
  • Open or close the IHS to the required width, ensuring that the two sections overlap by at least one row of nails (minimum overlap of 45mm).
  • Install 3.75mm nails through all round holes into the top and bottom chords of the I-joist.
  • Repeat the above steps to install plates on the other side of the I-joist, completing the installation.

Note: To ensure IHS is structurally adequate to strengthen I-joist with holes check with your I-joist supplier.

Applications
  • Designed to strengthen I-joists when holes are required to be cut in locations not normally permitted
  • Suitable for Square or Round holes
Model No. Table

Model No.

Size (mm)

Joist Height (mm)

Material & Finish

Box Qty

IHS240

248 x 236

240

Pre-galvanised

mild steel (Z275)

5 Pairs

IHS300

248 x 296

300

 
Brochures & Catalogues

Brochures and Catalogues

PDF icon Flyer - IHS I-Joist Hole Support
Technical Data & Docs

Technical Data Sheets

PDF icon Technical Data Sheet - IHS

Warranty

Warranty

Inspiration
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Experience the innovation of Simpson Strong-Tie products and how we can help you build safer, stronger structures. Please fill out your details and submit the form below. We’ll be in touch to provide you a demo and/or send you samples*.

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