Acrow Prop Components in Detail

Acrow props are a form of construction equipment that gives sturdy, temporary support during building work. These props are fully adjustable to a range of heights.

Prop Head: 150 x 150 x 6mm plates with holes for securing to timber beams or facilitating the use of accessories.

Prop Inner Tube: 48.3mm O.D. tube (standard scaffolding tube size) with holes at 152.5mm centres. Tube diameter enables standard scaffold tube and couplers to be used for bracing purposes.

Prop Outer Tube: 60.3mm O.D. Bottom plate identical to prop head. Reduction couplers enable standard scaffold tube to be connected to outer tube for bracing purposes.

Thread: On the outer tube the thread provides the ability for each prop to have infinite adjustment within its given range.

Nut: Self-cleaning nut has a hole located at one end for easy turning when prop handle is near walls. Additional nut can be added to convert prop to push-pull strut.

Safe working load (kN) for FDI props loaded concentrically and 1.5 maximum out of plumb.

Recommended safe working loads for props supporting Metriform or similar formwork systems ensuring concentric loading. Also for timber bearers where forl heads are used to ensure concentric loading, but load on prop may be limited by allowable stress in timber.

PROP HEIGHT (M)No. 0 Code 10005No. 1 - 10010No. 2 - 10020No. 3 - 10030No. 4 - 10040
1.25032
1.50032
1.7502132
2.0003232
2.2503232
2.5002626
2.750232323
3.000191919
3.250171724
3.5001519
3.7501315
4.0001212
4.25011
4.50010
4.7509

(Acrow Props) SAFE WORKING LOAD (kN) FOR FDI PROPS LOADED CONCENTRICALLY AND SUITABLY LACED WITH TUBE AND FITTINGS

Recommended safe working loads for props laced in two directions, at right angle, at a level 1/3 of the height of the extended inner tube. The lacing and the formwork deck must be restrained against horizontal movement by tying to the building or by diagonal bracing.

When using the loading tables, the height of any drop head or similar attachment should be included in the prop height.

PROP HEIGHT (M)No. 0 Code 10005No. 1 - 10010No. 2 - 10020No. 3 - 10030No. 4 - 10040
1.250
1.500
1.750
2.000
2.250
2.5003232
2.750323232
3.000323232
3.250323232
3.5002832
3.7502430
4.0002026
4.25022
4.50019
4.75016

(Acrow Props) SAFE WORKING LOAD (kN) FOR FDI PROPS LOADED 25mm MAX. ECCENTRIC AND 1.5 MAX OUT OF PLUMB.

Recommended Safe working loads for props where concentric loading cannot be guarenteed. When supporting timber bearers prop load may be limited by allowable stress in timber.

PROP HEIGHT (M)No. 0 Code 10005No. 1 - 10010No. 2 - 10020No. 3 - 10030No. 4 - 10040
1.25017
1.50017
1.7501717
2.0001717
2.2501717
2.5001717
2.750171717
3.000151515
3.250131317
3.5001114
3.7501011
4.00010
4.2509
4.5008
4.7507
5.0007

(Acrow Props heights below)Source: calculated in accordance with BS449: Part 2 : 1969 but using a load factor of 2

SizeHeight (Closed)Height (Extended)Inner LengthOuter LengthNet Weight (kg)
0104118291003101611.28
1175331241634148116.34
2198133521981167617.48
3259039622540167620.20
4320048763150205723.84

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