Free Online Tool: GFRP vs Steel Cost Calculator
Compare the weight and material cost of steel rebar and PGFRB GFRP bars — per metre, per kilogram and for your whole project.
The GFRP bar starts at the same diameter or the next PGFRB size up. You can choose any size.
Steel rebar
- Diameter
- 12 mm
- Weight per metre
- 0.888 kg/m
- Cost per metre
- —
- Total weight
- 887.8 kg
- Total material cost
- —
PGFRB GFRP rebar
- Diameter
- DN12 (12 mm)
- Weight per metre
- 0.220 kg/m
- Cost per metre
- —
- Total weight
- 220.0 kg
- Total material cost
- —
- Run length
- 1,000.0 m
- Weight reduction
- 75%
- Cost difference
- —
Enter the steel and GFRP prices to compare material cost.
Request DN12 QuoteCost per metre, size by size
Every steel size from 6 mm to 35 mm against the PGFRB bar of your choice. Enter the prices above to see costs.
6 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 0.222
- —
- GFRP
- 0.055
- —
- Saving/m
- —
8 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 0.395
- —
- GFRP
- 0.097
- —
- Saving/m
- —
10 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 0.617
- —
- GFRP
- 0.150
- —
- Saving/m
- —
12 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 0.888
- —
- GFRP
- 0.220
- —
- Saving/m
- —
14 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 1.208
- —
- GFRP
- 0.390
- —
- Saving/m
- —
16 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 1.578
- —
- GFRP
- 0.390
- —
- Saving/m
- —
18 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 1.998
- —
- GFRP
- 0.500
- —
- Saving/m
- —
20 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 2.466
- —
- GFRP
- 0.610
- —
- Saving/m
- —
22 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 2.984
- —
- GFRP
- 0.960
- —
- Saving/m
- —
25 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 3.853
- —
- GFRP
- 0.960
- —
- Saving/m
- —
28 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 4.834
- —
- GFRP
- 1.380
- —
- Saving/m
- —
30 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 5.549
- —
- GFRP
- 1.380
- —
- Saving/m
- —
32 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 6.313
- —
- GFRP
- 1.880
- —
- Saving/m
- —
35 mm steel
- Material
- kg/m
- Cost/m
- Steel
- 7.553
- —
- GFRP
- 1.880
- —
- Saving/m
- —
Material-cost estimate only. A steel bar and a GFRP bar of similar diameter are not necessarily structurally equivalent; GFRP bar size and spacing must be confirmed by a qualified structural engineer. Excludes wastage, laps, transport, tax and installation. Steel weights are nominal (d²/162); GFRP weights are PGFRB nominal values.
How It Works
Three Steps to Compare
Steel weights are nominal (d²/162). GFRP weights are PGFRB’s published nominal values for each size.
1. Choose the bars
Pick a steel size from 6 to 35 mm. The calculator suggests the same PGFRB size or the next one up, and you can change it.
2. Enter your quantity
Give the total length in metres, or the steel weight in kg. Weight is converted to the same run length for GFRP.
3. Add your prices
Enter the steel and GFRP rates per kg or per metre to see the cost of each and how much you save.
Let’s Build Something That Lasts
Whether you are planning a bridge, highway, marine structure, industrial facility or residential/commercial project, our team can help you explore whether GFRP reinforcement is suitable for your application.