Concealed Beam Hanger
The BTALU concealed hanger is one solution to connecting timber members together without seeing the connector.
It is designed to be fixed to the header timber and then fully inserted into a slot in the in-coming beam, and held in place with dowels. Holes are drilled through the timber and fin of the BTALU, allowing accurate alignment. This method provides an aesthectically pleasing connection for feature beams.
Note: Fasteners & dowels supplied; dowel length must be specified upon ordering
Holes for the joist have to be site drilled in accordance to positions shown in diagram below.






Technical Data
Product Dimensions
| Reference | Connector Dimensions | |||||||
|---|---|---|---|---|---|---|---|---|
| Other | Timber size[mm] | Product Dimensions[mm] | Header holes[mm] | |||||
| Qty per Box | Weight[kg] | Height[mm] | A[mm] | B[mm] | C[mm] | t[mm] | Round | |
| Min[mm] | Ø5 | |||||||
| BTALU90 | 25.0 | 0.23 | 142 | 86 | 109 | 62 | 6 | 16 |
| BTALU120 | 25.0 | 0.3 | 172 | 116 | 109 | 62 | 6 | 20 |
| BTALU160 | 25.0 | 0.41 | 212 | 156 | 109 | 62 | 6 | 28 |
| BTALU200 | 15.0 | 0.51 | 252 | 196 | 109 | 62 | 6 | 38 |
| BTALU240 | 15.0 | 0.61 | 292 | 236 | 109 | 62 | 6 | 44 |
| BTALU1200 | - | 3 | - | 1198 | 109 | 62 | 6 | - |
The holes for the joist has to be drill acc. to the hole pattern of the ETA.
The size A can be up to 4mm less for cutting from the raw length, the cut shall be between the nail holes.
Performance Values
| Reference | Hanger capacity | |||||
|---|---|---|---|---|---|---|
| Product Capacities[kN] | ||||||
| Product characteristic capacities - Timber C24[kN] | ||||||
| R1,k = R2,k | ||||||
| Dowels length[mm] | ||||||
| 60 | 80 | 100 | 120 | 140 | 160 | |
| BTALU90 | 10.8 | 11.8 | 12.9 | 13.7 | 13.7 | 13.7 |
| BTALU120 | 17.3 | 18.2 | 19.4 | 20.7 | 22.3 | 23.9 |
| BTALU160 | 28 | 29.5 | 31.2 | 33.3 | 35.7 | 38.2 |
| BTALU200 | 39.8 | 41.9 | 44.3 | 47.2 | 50.4 | 53.9 |
| BTALU240 | 52.2 | 54.9 | 57.9 | 61.7 | 65.9 | 70.3 |
| BTALU1200/120 | 17.3 | 18.2 | 19.4 | 20.7 | 22.3 | 23.9 |
| BTALU1200/160 | 28 | 29.5 | 31.2 | 33.3 | 35.7 | 38.2 |
| BTALU1200/200 | 39.8 | 41.9 | 44.3 | 47.2 | 50.4 | 53.9 |
| BTALU1200/240 | 52.2 | 54.9 | 57.9 | 61.7 | 65.9 | 70.3 |
| BTALU1200/280 | 64.6 | 68 | 71.7 | 76.4 | 81.7 | 87.2 |
| BTALU1200/320 | 77 | 81 | 85.5 | 91.2 | 97.5 | 104.1 |
| BTALU1200/360 | 89.1 | 93.8 | 99 | 105.8 | 113.3 | 121.1 |
| BTALU1200/400 | 100.8 | 106.1 | 112.3 | 120.2 | 129 | 137.9 |
| BTALU1200/440 | 112.1 | 118 | 125.2 | 134.4 | 144.4 | 154.7 |
| BTALU1200/480 | 122.8 | 129.3 | 137.7 | 148.2 | 159.7 | 171.3 |
| BTALU1200/520 | 122.8 | 129.3 | 138.4 | 150.5 | 163.1 | 175.8 |
| BTALU1200/560 | 122.8 | 129.3 | 138.4 | 150.7 | 164.9 | 179.1 |
| BTALU1200/600 | 122.8 | 129.3 | 138.4 | 150.7 | 164.9 | 180.4 |
The joist shall have as minimum a width = length of steel dowel.
For beams with a slope β the capacities shall be multiply with the factor.
| β | 0° | 15° | 30° | 45° |
| factor | 1.0 | 0.95 | 0.90 | 0.85 |
It´s only necessary for connection with less than 7 steel dowel in the joist.
Certification
Declaration of Performance (DoP)
European Technical Assessment (ETA)
CAD and BIM Library
BTALU200
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BTALU1200
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BTALU120
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BTALU160
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BTALU90
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BTALU200
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BTALU1200
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BTALU120
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BTALU160
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BTALU90
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BTALU240
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BTALU200
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BTALU1200
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BTALU120
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BTALU160
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BTALU90
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BTALU200
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BTALU120
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BTALU160
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