Joist to Joist Connections - I-Joist
The Cullen UI hanger is an entirely new concept in I-Joist
to I-Joist connections. It has the ability to transfer loads
without the need for either web stiffeners or backer blocks
and is extremely quick and simple to install. The UI
provides one size of hanger to suit all header widths
UI Hanger
GB Patent No. 2376700
TYPICAL APPLICATIONS
•
Single I-Joist to I-Joist connections
•
Medium load I-Joist to LVL / Glulam
connections
•
Medium load LVL / Glulam
MATERIAL
1.2mm galvanised mild steel - G275
•
GLOBAL FIRST
Backer Free I-Joist Hanger
UI
Suits all header widths
No More….
UI hanger `No backer blocks required’
(Top leg folded on site to suit header width)
Backer Blocks
Bend leg once only
Header widths over 100mm
For headers widths greater than 100mm,
the top leg must be nailed into the rear ply
of the double I-Joist using the furthermost
nail hole marked 89-97mm.
Please ensure that multiple I-Joists are
properly connected using Cullen I-Clips or
suitable timber filler blocks
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Joist to Joist Connections - I-Joist
INSTALLATION
STAGE 1
STAGE 2
Position UI against face of
I-Joist.
Drive home fixing spikes in
top plate into top flange of
I-Joist.
Face fix to I-Joist using,
4No. 3.75 x 30mm square
twist nails.
STAGE 3
STAGE 4
Wipe over top plate at
appropriate crease line to
give a flush fit to I-Joist.
Nail return legs into back
face of I-Joist using, 2No.
3.75 x 30mm square twist
nails into appropriate nail
holes.
UI - Safe Working Loads
Hanger
Fixings (Quantity)
Model
No
W
H
B
UI46/195
UI46/200
UI46/220
UI46/235
UI46/241
UI46/245
UI46/302
46
46
46
46
46
46
46
195
200
220
235
241
245
302
50
50
50
50
50
50
50
Back
Face
Joist
/Top
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Uplift
Short
Term
(kN)
0.85
0.85
0.85
0.85
0.85
0.85
0.85
I-Joist or GL
Safe Working Load (kN)
I-Joist or LVL
I-Joist or GL
I-Joist
(solid timber
flanges)
(LVL flanges)
(solid timber
flanges)
to
I-Joist
4.12
4.12
4.12
4.12
4.12
4.12
4.12
to
I-Joist
4.63
4.63
4.63
4.63
4.63
4.63
4.63
to
GL
5.43
5.43
5.43
5.43
5.43
5.43
5.43
to
LVL
7.88
7.88
7.88
7.88
7.88
7.88
7.88
LVL
to
LVL
9.47
9.47
9.47
9.47
9.47
9.47
9.47
Hangers shown above are for 45mm joists, UI’s are available in widths of 39, 46, 52, 61, 75, 92 and 100mm
For all joist depths over 300mm please refer to the Cullen HI hanger
To order the UI
W dimension – Joist width e.g. 45mm
H dimension – Joist height e.g. 245mm
Hanger required – UI 46/245
GENERAL NOTES
1.
No web stiffeners were used to achieve safe working loads stated (I-Joist manufacturer may require web stiffeners)
2.
Use all specified nail holes in joist and header
3.
Use only 3.75 x 30mm sherardised square twist nails
4.
Safe working loads quoted are the maximum hanger capacity.
5.
All safe working loads derived from tests witnessed and verified by TimberSolve Limited
6.
When multiple joists are used they must be connected together to act as a single unit (refer to “I-Joist manufacturers” fixing detail)
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