Connectors

Hangers

BTCALU

Concealed Beam Hanger

Hidden from view, the BTCALU concealed beam hanger system combines high strength and performance with a minimalist structural aesthetic for timber-to-timber and timberto-concrete connections.

The system features a single-piece aluminium plate with a fin that locates into a slot - pre-cut into the carried timber member - which is then secured using dowels inserted through the timber section and the BTCALU fin.

Technical Data Sheet

CE Marking

ETA

New

Service class 2

Indoor

Aluminium

Product Details

Images

Features

Material

Aluminium

Benefits

Aluminium -strong, yet light weight
Available in 5 pre-made length as well as a 2,168mm bar version for on-site cutting of custom sizes
Use in horizontal connections or at inclinations of up to 45°
The mounting slot is a safe and convenient way to suspend a secondary beam prior to dowel installation
No additional support required
Fire protection according to our ETA
Test for use with Simpson Strong-Tie anchors, dowels and fastenings

Application

Suitable on

Supporting member:

Solid wood, engineered wood
Steel
Concrete

Supported member:

Solid wood, engineered wood

Where to use

For connections of secondary beams made of wood or engineered wood to main beams/posts made of solid/engineered wood/concrete or steel.

Technical Data

Product Dimensions

Dimensions

Reference	Connector Dimensions
	Product Dimensions[mm]						Header holes[mm]
	A[mm]	B[mm]	C[mm]	t[mm]	α[°]	α	Round
	A[mm]	B[mm]	C[mm]	t[mm]	Min[mm]	Max.[°]	Ø9	Ø5
BTCALU90	90	123	80	6	-45	45	4	16
BTCALU120	120	123	80	6	-45	45	6	22
BTCALU160	160	123	80	6	-45	45	8	30
BTCALU200	200	123	80	6	-45	45	10	38
BTCALU240	240	123	80	6	-45	45	12	46
BTCALU2168	2168	123	80	6	-45	45	-	-

Product characteristic capacities - Timber beam to timber beam - CSA - STD 12

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber Beam to timber beam - CSA - STD12
	Characteristic capacities - Timber C24[kN]																			Fasteners
	R₄,ₖ	R₁,ₖ						R₂,ₖ						R3,k						Joist		Header
		Dowels length[mm]						Dowels length[mm]						Dowels length[mm]						Qty	Type	Qty	Type
		60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	Qty	Type	Qty	Type
BTCALU90	8.6	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	3.2	4.5	4.7	4.7	4.7	4.7	3.0	STD12	16.0	CSA5.0x50
BTCALU120	12.9	24.8	24.8	24.8	24.8	24.8	24.8	24.8	24.8	24.8	24.8	24.8	24.8	3.9	5.6	6.3	6.3	6.3	6.3	3.0	STD12	22.0	CSA5.0x50
BTCALU160	17.2	41.9	42	42	42	42	42	41.9	42	42	42	42	42	4.9	7	8.4	8.4	8.4	8.4	4.0	STD12	30.0	CSA5.0x50
BTCALU200	21.4	52.3	54.1	57.9	61.7	61.7	61.7	52.3	54.1	57.9	61.7	61.7	61.7	5.9	8.4	10.5	10.5	10.5	10.5	5.0	STD12	38.0	CSA5.0x50
BTCALU240	25.7	62.8	64.9	69.5	75.7	82.8	82.9	62.8	64.9	69.5	75.7	82.8	82.9	6.9	9.8	12.6	12.6	12.6	12.6	6.0	STD12	46.0	CSA5.0x50

Product characteristic capacities - Timber beam to timber beam - SSH - STD 12

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber beam to timber beam - SSH - STD12
	Characteristic capacities - Timber C24[kN]																			Fasteners
	R₄,ₖ	R₁,ₖ						R₂,ₖ						R3,k						Joist		Header
		Dowels length[mm]						Dowels length[mm]						Dowels length[mm]						Qty	Type	Qty	Type
		60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	Qty	Type	Qty	Type
BTCALU90	12.6	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	3.2	4.5	4.7	4.7	4.7	4.7	3.0	STD12	4.0	SSH8x80
BTCALU120	18.9	6	6	6	6	6	6	6	6	6	6	6	6	3.9	5.6	6.3	6.3	6.3	6.3	3.0	STD12	6.0	SSH8x80
BTCALU160	25.2	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	4.9	7	8.4	8.4	8.4	8.4	4.0	STD12	8.0	SSH8x80
BTCALU200	31.5	17	17	17	17	17	17	17	17	17	17	17	17	5.9	8.4	10.5	10.5	10.5	10.5	5.0	STD12	10.0	SSH8x80
BTCALU240	37.8	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	6.9	9.8	12.6	12.6	12.6	12.6	6.0	STD12	12.0	SSH8x80

Product characteristic capacities - Timber beam to Rigid support - FM753 - STD12

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber beam to rigid support - FM753 - STD12
	Fasteners				Characteristic capacities - Timber C24[kN]
	Header		Joist		R₄,ₖ	R₁,ₖ						R₂,ₖ						R3,k
	Qty	Type	Qty	Type		Dowels length[mm]						Dowels length[mm]						Dowels length[mm]
	Qty	Type	Qty	Type		60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
BTCALU90	4.0	FM753 EVO M8	3.0	STD12	21.4	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.2	4.5	4.7	4.7	4.7	4.7
BTCALU120	6.0	FM753 EVO M8	3.0	STD12	31.4	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	3.9	5.6	6.3	6.3	6.3	6.3
BTCALU160	8.0	FM753 EVO M8	4.0	STD12	41.9	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	4.9	7	8.4	8.4	8.4	8.4
BTCALU200	10.0	FM753 EVO M8	5.0	STD12	52.3	29.1	29.1	29.1	29.1	29.1	29.1	29.1	29.1	29.1	29.1	29.1	29.1	5.9	8.4	10.5	10.5	10.5	10.5
BTCALU240	12.0	FM753 EVO M8	6.0	STD12	62.8	41.2	41.2	41.2	41.2	41.2	41.2	41.2	41.2	41.2	41.2	41.2	41.2	6.9	9.8	12.6	12.6	12.6	12.6

Product characteristic capacities - Timber beam to timber beam - CSA - SDD7.5

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber Beam to timber beam - CSA - SDD7.5
	Fasteners				Characteristic capacities - Timber C24[kN]
	Header		Joist		R₄,ₖ	R₂,ₖ					R₁,ₖ					R3,k
	Qty	Type	Qty	Type		Dowels length[mm]					Dowels length[mm]					Dowels length[mm]
	Qty	Type	Qty	Type		93	113	133	153	173	93	113	133	153	173	93	113	133	153	173
BTCALU90	16.0	CSA5.0x50	3.0	SDD7.5	8.6	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	16.5	4.7	4.7	4.7	4.7	4.7
BTCALU120	22.0	CSA5.0x50	3.0	SDD7.5	12.9	21.6	23.8	24.8	24.8	24.8	21.6	23.8	24.8	24.8	24.8	6.3	6.3	6.3	6.3	6.3
BTCALU160	30.0	CSA5.0x50	4.0	SDD7.5	17.2	28.8	31.8	35.2	38.8	41.7	28.8	31.8	35.2	38.8	41.7	8.3	8.4	8.4	8.4	8.4
BTCALU200	38.0	CSA5.0x50	5.0	SDD7.5	21.4	36	39.7	44	48.5	52.2	36	39.7	44	48.5	52.2	10	10.5	10.5	10.5	10.5
BTCALU240	46.0	CSA5.0x50	6.0	SDD7.5	25.7	43.2	47.7	52.7	58.3	62.6	43.2	47.7	52.7	58.3	62.6	11.7	12.6	12.6	12.6	12.6

Product characteristic capacities - Timber beam to timber beam - SSH - SDD7.5

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber beam to timber beam - SSH - SDD7.5
	Fasteners				Characteristic capacities - Timber C24[kN]
	Header		Joist		R₄,ₖ	R₁,ₖ					R₂,ₖ					R3,k
	Qty	Type	Qty	Type		Dowels length[mm]					Dowels length[mm]					Dowels length[mm]
	Qty	Type	Qty	Type		93	113	133	153	173	93	113	133	153	173	93	113	133	153	173
BTCALU90	4.0	SSH8x80	3.0	SDD7.5	12.6	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	1.9	4.7	4.7	4.7	4.7	4.7
BTCALU120	6.0	SSH8x80	3.0	SDD7.5	18.9	6	6	6	6	6	6	6	6	6	6	6.3	6.3	6.3	6.3	6.3
BTCALU160	8.0	SSH8x80	4.0	SDD7.5	25.2	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	8.3	8.4	8.4	8.4	8.4
BTCALU200	10.0	SSH8x80	5.0	SDD7.5	31.5	17	17	17	17	17	17	17	17	17	17	10	10.5	10.5	10.5	10.5
BTCALU240	12.0	SSH8x80	6.0	SDD7.5	37.8	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	24.1	11.7	12.6	12.6	12.6	12.6

Product characteristic capacities - Timber beam to Rigid support - FM753 - SDD7.5

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber beam to rigid support - FM753 - SDD7.5
	Characteristic capacities - Timber C24[kN]																Fasteners
	R₄,ₖ	R₁,ₖ					R3,k					R₂,ₖ					Joist		Header
		Dowels length[mm]					Dowels length[mm]					Dowels length[mm]					Qty	Type	Qty	Type
		93	113	133	153	173	93	113	133	153	173	93	113	133	153	173	Qty	Type	Qty	Type
BTCALU90	21.4	3.3	3.3	3.3	3.3	3.3	4.7	4.7	4.7	4.7	4.7	3.3	3.3	3.3	3.3	3.3	3.0	SDD7.5	4.0	FM753 EVO M8
BTCALU120	21.6	10.2	10.2	10.2	10.2	10.2	6.3	6.3	6.3	6.3	6.3	10.2	10.2	10.2	10.2	10.2	3.0	SDD7.5	6.0	FM753 EVO M8
BTCALU160	28.8	18.5	18.5	18.5	18.5	18.5	8.3	8.4	8.4	8.4	8.4	18.5	18.5	18.5	18.5	18.5	4.0	SDD7.5	8.0	FM753 EVO M8
BTCALU200	36	29.1	29.1	29.1	29.1	29.1	10	10.5	10.5	10.5	10.5	29.1	29.1	29.1	29.1	29.1	5.0	SDD7.5	10.0	FM753 EVO M8
BTCALU240	43.2	41.2	41.2	41.2	41.2	41.2	11.7	12.6	12.6	12.6	12.6	41.2	41.2	41.2	41.2	41.2	6.0	SDD7.5	12.0	FM753 EVO M8

Installation

Fixings

Supported Member

Steel dowels STD ∅8, ∅10, or ∅12,
Self Drilling Dowels SDD7.5

Supporting Member

Concrete
- FM 753 evo M8
- FM 753 crack M8
- AT-HP + LMAS M8
Steel
- Bolt M8
Timber
- CNA4,0xl threaded nails
- CSA5,0xl screws
- SSH ∅8

Installation

BTCALU exist in 2168 mm bars. It must be cut to length by the user, with a maximum usable length of 600 mm. The hanger can be used with a supported beam with a slope of between -45° and +45°. The BTCALU is supplied without drilling in the core. The holes must be drilled at regular 40 mm centres before inserting the STD Ø12 pins or the will be drilleds during the installation of the SDD.

Cut the BTCALU to the required height (load values are given for a maximum height of 600 mm),
Fix the BTCALU to the support using CNA Ø4.0 x 50mm nails, CSA5.0x40 screws, SSH8 screws on a timber support or FM 753 evo type anchors on a concrete support.
Make a vertical cut 9 mm thick and 129 mm deep along the axis of the supported beam over the entire height of the beam to insert the web of the hanger,
Place the beam on the hanger in its final position,
In the case of STD, drill the wood and the web of the hanger at the same time, taking into account the drilling recommendations on the BTCALU web. The timber can be drilled beforehand and used as a guide for drilling the dowel holes in the core of the hanger,
Insert the dowels into the holes to complete the installation.
If the timber and hanger are drilled at the same time for STD smooth dowel pins, the drilling should be 12 mm. With STD smooth dowels, during the construction phase or in the case of light loads, it is recommended that the spindles are held in position either by glue or by taking a dowel smaller than the width of the supported timber , and encapsulating the dowels.
In the case of SDD, the timber and aluminium are drilled directly by the self drilling dowel during the installation. The dowels will be maintained in position by the thread.