Connectors

Hangers

IHS

I-Joist Hole Support

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

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 SVP (soil vent pipe) runs.
Can be used on single and double ply I-joists.

Technical Data Sheet

Service class 2

Electrogalvanized steel 20 µm

EPD

Product Details

Images

Ensure a minimum of 50mm from edge of cut hole to the bearing face.

Features

Materials

Pre-galvanised mild steel

Technical Data

IHS Product Dimensions

Dimensions

Reference	Hanger capacity				Connector Dimensions
	Number of Fasteners				Timber size[mm]	Product Dimensions[mm]						Holes
	150 mm Bracket Opening		250mm Bracket Opening		Width[mm]	A[mm]	B[mm]	C[mm]	D₁[mm]	D₂[mm]	t[mm]	Triangular	Round
	Specification	Quantity	Quantity	Specification	Width[mm]	A[mm]	B[mm]	C[mm]	D₁[mm]	D₂[mm]	t[mm]	Triangular	Ø4
IHS195	3.75x30mm	24.0	32.0	3.75x30mm	195-200	150	250	191	150	250	1.5	3	10
IHS220	3.75x30mm	24.0	32.0	3.75x30mm	220-225	150	250	216	150	250	1.5	3	10
IHS235	3.75x30mm	24.0	32.0	3.75x30mm	235	150	250	231	150	250	1.5	3	10
IHS240	3.75x30mm	24.0	32.0	3.75x30mm	240-245	150	250	236	150	250	1.5	3	10
IHS300	3.75x30mm	24.0	32.0	3.75x30mm	300-302	150	250	296	150	250	1.5	3	10

1) Use 3.75x30mm Square Twist Nails

2) Number of fasteners is per hole in joist

IHS Performance: James Jones (JJI A+) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (James Jones (JJI A+) I-Joist)[kN]
	Joist Type (James Jones (JJI A+) I-Joist)	Joist Height (JJI-Joist)[mm]	Max. allowable hole size with IHS (d x w) (JJI-Joist)	Characteristic Capacities		Permissible loads (Intermediate Floor Joist Applications)
				Vₖ,ₕₒₗₑ (IHS Installed)		Vₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	JJI-Joist A+ (47mm)	195	100 x 250	3.38	8.51	2.62	3.49
IHS220	JJI-Joist A+ (47mm)	220	120 x 250	6.8	9.06	2.76	3.72
IHS235	JJI-Joist A+ (47mm)	235	140 x 250	7.06	9.42	2.9	3.86
IHS240	JJI-Joist A+ (47mm)	245	150 x 250	7.25	9.66	2.97	3.96
IHS300	JJI-Joist A+ (47mm)	300	200 x 250	8.32	11.09	3.41	4.55

IHS Performance: James Jones (JJI B+) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (James Jones (JJI B+) I-Joist)[kN]
	Joist Type (James Jones (JJI B+) I-Joist)	Joist Height (JJI-Joist)[mm]	Max. allowable hole size with IHS (d x w) (JJI-Joist)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS220	JJI-Joist B+ (63 mm)	220	120 x 250	3.07	4.1	7.49	9.98
IHS235	JJI-Joist B+ (63 mm)	235	140 x 250	3.18	4.23	7.74	10.32
IHS240	JJI-Joist B+ (63 mm)	245	150 x 250	3.25	4.33	7.91	10.55
IHS300	JJI-Joist B+ (63 mm)	300	200 x 250	3.67	4.89	8.95	11.93

IHS Performance: James Jones (JJI C) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (James Jones (JJI C) I-Joist)[kN]
	Joist Type (James Jones (JJI C) I-Joist)	Joist Height (JJI-Joist)[mm]	Max. allowable hole size with IHS (d x w) (JJI-Joist)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	JJI-Joist C (72 mm)	195	100 x 250	3.06	4.08	7.46	9.95
IHS220	JJI-Joist C (72 mm)	220	120 x 250	3.22	4.3	7.85	10.47
IHS235	JJI-Joist C (72 mm)	235	140 x 250	3.33	4.43	8.11	10.81
IHS240	JJI-Joist C (72 mm)	245	150 x 250	3.4	4.53	8.28	11.04
IHS300	JJI-Joist C (72 mm)	300	200 x 250	3.81	5.08	9.29	12.39

IHS Performance: James Jones (JJI D) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (James Jones (JJI D) I-Joist)[kN]
	Joist Type (James Jones (JJI D) I-Joist)	Joist Height (JJI-Joist)[mm]	Max. allowable hole size with IHS (d x w) (JJI-Joist)	Characteristic Capacities		Permissible loads (Intermediate Floor Joist Applications)
				Vₖ,ₕₒₗₑ (IHS Installed)		Vₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS220	JJI-Joist D (97 mm)	220	120 x 250	8.83	11.77	3.62	4.83
IHS235	JJI-Joist D (97 mm)	235	140 x 250	9.07	12.1	3.72	4.96
IHS240	JJI-Joist D (97 mm)	245	150 x 250	9.24	12.32	3.79	5.05
IHS300	JJI-Joist D (97 mm)	300	200 x 250	10.24	13.66	4.2	5.6

IHS Performance: Masonite H (47mm Flange) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Masonite)[kN]
	Joist Type (Masonite H)	Joist Height (Masonite)[mm]	Max. allowable hole size with IHS (d x w) (Masonite)[mm]	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 Ply	Double Ply	1 Ply	Double Ply
IHS220	H	220	120 x 250	2.25	2.7	7.56	9.08
IHS240	H	240	140 x 250	2.45	2.94	8.24	9.89
IHS300	H	300	200 x 250	3.05	3.66	10.26	12.31

IHS Performance: Masonite HM (60mm Flange) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Masonite)[kN]
	Joist Type (Masonite HM)	Joist Height (Masonite)[mm]	Max. allowable hole size with IHS (d x w) (Masonite)[mm]	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 Ply	Double Ply	1 Ply	Double Ply
IHS220	HM	220	120 x 250	2.25	2.7	7.56	9.08
IHS240	HM	240	140 x 250	2.45	2.94	8.24	9.89
IHS300	HM	300	200 x 250	3.05	3.66	10.26	12.31

IHS Performance: Masonite HI (70mm flange) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Masonite)[kN]
	Joist Type (Masonite HI)	Joist Height (Masonite)[mm]	Max. allowable hole size with IHS (d x w) (Masonite)[mm]	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 Ply	Double Ply	1 Ply	Double Ply
IHS220	HI	220	120 x 250	2.25	2.7	7.56	9.08
IHS240	HI	240	140 x 250	2.45	2.94	8.24	9.89
IHS300	HI	300	200 x 250	3.05	3.66	10.26	12.31

IHS Performance: Masonite HB (97mm flange) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Masonite HB)[kN]
	Joist Type (Masonite HB)	Joist Height (Masonite)[mm]	Max. allowable hole size with IHS (d x w) (Masonite)[mm]	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 Ply	Double Ply	1 Ply	Double Ply
IHS220	HB	220	120 x 250	2.3	2.7	7.6	9.1
IHS240	HB	240	140 x 250	2.5	2.9	8.2	9.9
IHS300	HB	300	200 x 250	3.1	3.7	10.3	12.3

IHS Performance: MetsaWood (FinnJoist 45mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (FinnJoist 38mm)[kN]
	Joist Type (FinnJoist 38mm)	Joist Height (FinnJoist)[mm]	Max. allowable hole size with IHS (d x w) (FinnJoist)	Characteristic Capacities		Permissible loads (Intermediate Floor Joist Applications)
				Vₖ,ₕₒₗₑ (IHS Installed)		Vₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	FJI 45	200	100 x 250	5.41	6.31	2.25	2.63
IHS220	FJI 45	220	125 x 250	6.28	7.33	2.62	3.05
IHS240	FJI 45	240	145 x 250	7.02	8.19	2.93	3.41
IHS300	FJI 45	300	200 x 250	8.48	9.89	3.53	4.12

IHS Performance: MetsaWood (FinnJoist 53mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (FinnJoist 53mm)[kN]
	Joist Type (FinnJoist 53mm)	Joist Height (FinnJoist)[mm]	Max. allowable hole size with IHS (d x w) (FinnJoist)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	FJI 58	200	100 x 250	2.4	2.8	5.75	6.71
IHS220	FJI 58	220	125 x 250	2.79	3.25	6.69	7.81
IHS240	FJI 58	240	145 x 250	3.12	3.64	7.48	8.73
IHS300	FJI 58	300	200 x 250	3.76	4.39	9.09	10.54

IHS Performance: MetsaWood (FinnJoist 69mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (FinnJoist 69mm)[kN]
	Joist Type (FinnJoist 69mm)	Joist Height (FinnJoist)[mm]	Max. allowable hole size with IHS (d x w) (FinnJoist)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	FJI 70	200	100 x 250	2.48	2.89	5.95	6.94
IHS220	FJI 70	220	125 x 250	2.88	3.36	6.91	8.06
IHS240	FJI 70	240	145 x 250	3.22	3.76	7.73	9.02
IHS300	FJI 70	300	200 x 250	3.89	4.53	9.32	10.88

IHS Performance: MetsaWood (FinnJoist 96mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (FinnJoist 96mm)[kN]
	Joist Type (FinnJoist 96mm)	Joist Height (FinnJoist)[mm]	Max. allowable hole size with IHS (d x w) (FinnJoist)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	FJI 89	200	100 x 250	2.48	2.89	5.95	6.94
IHS220	FJI 89	220	125 x 250	2.88	3.36	6.91	8.06
IHS240	FJI 89	240	145 x 250	3.22	3.76	7.73	9.02
IHS300	FJI 89	300	200 x 250	3.89	4.53	9.32	10.88

IHS Performance: Steico (SJL 45mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Steico (SJL 45mm))[kN]
	Joist Type (Steico (SJL 45mm))	Joist Height (Steico)[mm]	Max. allowable hole size with IHS (d x w) (Steico)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	-	-	-	-	-	-	-
IHS220	SJL 45	220	130 x 250	1.5	2.11	5.93	8.3
IHS240	SJL 45	240	150 x 250	1.62	2.27	6.38	8.93
IHS300	SJL 45	300	200 x 250	1.95	2.73	7.68	10.75

IHS Performance: Steico (SJL 60mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Steico (SJL 60mm))[kN]
	Joist Type (Steico (SJL 60mm))	Joist Height (Steico)[mm]	Max. allowable hole size with IHS (d x w) (Steico)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	-	-	-	-	-	-	-
IHS220	SJL 60	220	130 x 250	1.49	2.09	5.88	8.23
IHS240	SJL 60	240	150 x 250	1.6	2.25	6.32	8.85
IHS300	SJL 60	300	200 x 250	1.93	2.7	7.59	10.62

IHS Performance: Steico (SJL 90mm) I-Joist

Reference	Hanger capacity
	Joist Type	Joist Height	Max. allowable hole size with IHS (d x w)	Shear Capacity at Location of IHS (Steico (SJL 90mm))[kN]
	Joist Type (Steico (SJL 90mm))	Joist Height (Steico)[mm]	Max. allowable hole size with IHS (d x w) (Steico)	Permissible loads (Intermediate Floor Joist Applications)		Characteristic Capacities
				Vₕₒₗₑ (IHS Installed)		Vₖ,ₕₒₗₑ (IHS Installed)
				1 ply	Double Ply	1 ply	Double Ply
IHS195	-	-	-	-	-	-	-
IHS220	SJL 90	220	130 x 250	1.48	2.07	5.83	8.16
IHS235	-	-	-	-	-	-	-
IHS240	SJL 90	240	150 x 250	1.59	2.22	6.26	8.76
IHS300	SJL 90	300	200 x 250	1.9	2.66	7.49	10.48
IHS350	-	-	-	-	-	-	-

Installation

Applications

Installation

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 3.75x30mm square twist 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.

Certification

Environmental Product Declarations (EPD)

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Product Details

Images

Features

Materials

Technical Data

IHS Product Dimensions

Dimensions

IHS Performance: James Jones (JJI A+) I-Joist

IHS Performance: James Jones (JJI B+) I-Joist

IHS Performance: James Jones (JJI C) I-Joist

IHS Performance: James Jones (JJI D) I-Joist

IHS Performance: Masonite H (47mm Flange) I-Joist

IHS Performance: Masonite HM (60mm Flange) I-Joist

IHS Performance: Masonite HI (70mm flange) I-Joist

IHS Performance: Masonite HB (97mm flange) I-Joist

IHS Performance: MetsaWood (FinnJoist 45mm) I-Joist

IHS Performance: MetsaWood (FinnJoist 53mm) I-Joist

IHS Performance: MetsaWood (FinnJoist 69mm) I-Joist

IHS Performance: MetsaWood (FinnJoist 96mm) I-Joist

IHS Performance: Steico (SJL 45mm) I-Joist

IHS Performance: Steico (SJL 60mm) I-Joist

IHS Performance: Steico (SJL 90mm) I-Joist

Installation

Installation

Applications

Installation

Certification

Environmental Product Declarations (EPD)

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