About

Engineered Composites supplies an extensive range of lightweight glass fibre reinforced rods, GRP tubes, and ancillary products. These strong, durable and flexible lengths of fibre glass composite are suitable for a range of diverse applications.

  • Easy to install
  • Corrosion resistant
  • Chemical resistant
  • Weather resistant
  • Lightweight
  • Low thermal conductivity
  • No recycle value
solid rod

Available in stock NOW

The following GRP rods are carried as stock items for immediate delivery. Other diameters, lengths and colours can be supplied to order with a typical minimum production order of 1000m for the small diameters and 500m for the larger sizes.

Diameter D mm Weight gm/m Stock length m Colour
5 40 6 Black
7 70 6 Black
7.9 100 6 White
9.5 160 6 White
12.5 220 6 White

Technical Data

The following data is given for guidance in materials selection. Please contact us for more specific design data for individual products.

Units Property Data
Tensile strength MPa 550
Tensile Modulus GPa 30
Density g/cc 1.9
Electrical Strength kV/mm 10
Thermal conductivity W/m.K 0.35
Water absorption % wt/wt 0.2%

GRP Rods Made To Order

Please note that the minimum order is 500m and production typically takes between 12-14 weeks.

Diameter D mm Product Weight kg/m
10 0.15
11 0.18
12 0.21
12.5 0.23
14 0.29
15.8 0.37
17.5 0.46
18 0.48
20 0.6
22 0.72
24 0.86
25 0.93
25.4 0.99
28 1.17
30 1.34
32 1.53
34 1.73
Round tube

Fibreglass GRP tubes are stocked in a number of diameters and wall thickness. They are all made by the pultrusion process so have high glass contents and excellent mechanical properties. All of the tubes have a corrosion/weathering barrier built into the surface to give the maximum long-term performance in the most demanding environments.

Available in stock NOW

The stock lengths can be cut to length if required

Outside Diameter D1 mm Inside Diameter D2 mm Wall thickness t mm Weight gm/m Stock length m Colour
9.5 3 3.25 100 6 Black
12.5 4 4.35 200 6 Black
19 13 3.2 290 6 Grey
22# 17 2.5 280 6 Grey
25# 20 2.5 330 6 Grey
31 25 3.0 521 6 Yellow & Grey
38 32 3.0 620 6 Yellow & Grey
48.5 35 6.75 1600 6 Red & Yellow
50 40 5 1300 5 Yellow & Grey
51.6 46.5 2.55 720 6 Grey

* the 48.5×35 tube is the scaffold tube

# these tubes are also available in a high gloss finish suitable for light tool handles (e.g brushes)


Technical Data

The following data is given for guidance in materials selection. Please contact us for more specific design data for individual products.

Property Units Property Data
Tensile strength MPa 170
Tensile Modulus GPa 17
Flexural Strength MPa 170
Density g/cc 1.8
Electrical Strength kV/mm 10
Thermal conductivity W/m.K 0.35
Water absorption % wt/wt 0.2%

GRP Tubes Made To Order

Please note that the minimum order is 500m and production typically takes between 12-14 weeks

Diameter D mm Inside Diameter D2 mm Wall Thickness t mm Weight gm/m
12 8 2 118
13 6.1 3.45 193
14 8 3 195
15 10 2.5 0.19
16 12 2 183
18 11.6 3.2 0.27
19 12.6 3.2 0.31
20 15 2.5 0.27
20 16 2 0.22
21.5 17.5 2 0.22
23 19 2.5 0.295
23 17 3 0.345
23.5 17.5 3 367
23.8 19.82 1.99 259
24 20 2 0.247
24 18 3 0.383
24.8 20.8 2 0.27
25 21 2 0.342
25 20 2.5 0.362
25 19 3 0.4
25.4 21.4 2 0.28
25.4 20.4 2.5 0.334
25.4 19.4 3 0.419
25.4 19 3.2 30.42
25.4 15 5.2 0.61
26 21 2.5 350
26.97 22.97 2 0.296
27.4 21.4 3 0.424
28 24 2 0.31
28 22 3 0.485
28 22.5 2.75 457
28 25 1.5 263
28.6 22.2 3.2 473
30 26 2 0.399
30 25 2.5 0.418
30 24 3 0.48
30 22 4 0.725
30 20.4 4.8 0.722
31 26.42 2.54 423
31 24.64 3.18 526
32 28 2 0.36
32 27 2.5 0.44
32 26.4 2.8 0.488
32 26 3 0.537
32 25 3.5 0.593
32 24 4 0.725
32 22.4 4.8 0.759
33.5 27 3.25 0.574
36 30 3 0.581
38 28 5 0.97
39.7 33.3 3.2 0.7
40 34 3 0.65
40 32 4 0.85
41 34 3.5 766
50 43.4 3.3 0.91
50 44.4 2.8 790
60 50.6 4.7 1660
60 54.75 2.625 0.9
60 53 3.5 1140
60.3 52.3 4 1.31
71 55 8 2944
71 64 3.5 1373
71 63 4 1515
73 63 5 1.98
75 65.6 4.7 1931
76.5 69.5 3.5 1.5
76.5 68.5 4 1.7
76.5 64.5 6 2.5
79 67 6 2610
82 76 3 1420
85 73 6 2830
92 80 6 3080
92 76 8 4010
98 86 6 3300
102.2 95.2 3.5 2228
104 92 6 3510
106 99.4 3.3 2250
117 105 6 3980
123 111 6 4190
130 118 6 4440
150 142 4 3490
152 144 4 3530
155 143 6 5340
168 156 6 5810
183.4 175.4 4 4283
183.4 174.4 4.5 4805
183.4 171.4 6 7450
184 178 3 3173
186 171 7.5 8590
230 220 5 7420
GRP Scaffold Tubes

Fiberglass GRP Scaffold Tube is stocked in tubes which have the same outer diameter as standard aluminium and steel Scaffold Tubes, 48.3mm, therefore standard scaffold couplers and fittings can be used on the GRP Scaffold Tubes.

The advantages of GRP Scaffold Tubes are that they are lighter than Steel and therefore use less fuel in their transportation to and from sites. The manual handling is quicker and easier with less likelihood of injury or fatigue. Only small capacity hoists are needed for the higher levels of the scaffolding systems.

They also do not corrode and therefore are excellent for the food or pharmaceutical industry. They are non-conductive and non-electromagnetic which is a requirement for sites near power stations and electrical sub stations.

Stock Sizes

Outside Diameter (mm) Inside Diameter (mm) Wall Thickness (mm) Weight Per M (kg) Stock Length (m) Colour
48.3 35 6.65 1.60 6 Red
48.3 35 6.65 1.60 6 Yellow

Technical Data

Property Units Property Data
Tensile Strength MPA 170
Tensile Modulus GPA 30
Flexural Strength MPA 170
Density g/cc 1.8
Electrical Strength KV/m2 10
Thermal Conductivity W/m.k 0.35
Water Absorption % wt/wt 0.20%
Axial Modulus GPA 30
Axial Strength MPA >300
Transverse Crush Strength KN 100
TU624CAP-100x1001

38mm Tube end cap, TU625CAP

– 6 metres as standard

Colours are :-

Tubes are in a variety of colours, Black, White, Grey and Yellow. We only have a maximum of two colours per item.

Scaffold Tubes are available in Red and Yellow

Rods are available in either Black or White

Stock items: 1 Lengths
Non stock items: 500m (1000m for small diameters)

Interested? Contact us about this product