
GRP Permanent Formwork
Permadec Formwork Panels are primarily used as permanent infill formwork between bridge beams.
Their strength, lightweight composition, durability, and integrated steel reinforcement make them highly versatile — extending their application beyond bridge structures to include platforms, ramps, floors, sewage treatment plants, culverts, jetties, tanks, and capping slabs or roofs.
Permadec Australia offers bespoke panel design tailored to meet specific project requirements. For design support or to discuss your application, contact Permadec on +61 2 9052 4975 or [email protected].
Please note: All panel information is indicative only. For finalised specifications and detailed design, please consult directly with the Permadec team.
Clear Span Range
Deck Depth

3
Span
Range: 500 - 1200 mm
Deck Depth: 200 mm
Panel Height: 34 mm
Panel Weight: 30 kg/m2
Rib Centres: 150 mm
Deck Depth: 200 mm
Panel Height: 34 mm
Panel Weight: 30 kg/m2
Rib Centres: 150 mm

4
Span Range: 500 - 1200
mm
Deck Depth: 200 mm
Panel Height: 34 mm
Panel Weight: 29 kg/m2
Rib Centres: 125 mm
Deck Depth: 200 mm
Panel Height: 34 mm
Panel Weight: 29 kg/m2
Rib Centres: 125 mm

3A
Span Range: 1200 - 1500
mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 150 mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 150 mm

4A
Span Range: 1200 - 1500
mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1200 - 1500
mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm

3A
Span Range: 1500 - 2000
mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 43 kg/m2
Rib Centres: 150 mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 43 kg/m2
Rib Centres: 150 mm

4A
Span Range: 1500 - 2000
mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 43 kg/m2
Rib Centres: 125 mm
Deck Depth: 200 mm
Panel Height: 49 mm
Panel Weight: 43 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1500 - 2000
mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm

3C
Span Range: 2000 - 2500
mm
Deck Depth: 200 mm
Panel Height: 69 mm
Panel Weight: 50 kg/m2
Rib Centres: 150 mm
Deck Depth: 200 mm
Panel Height: 69 mm
Panel Weight: 50 kg/m2
Rib Centres: 150 mm

4B
Span Range: 2000 - 2500
mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 56 kg/m2
Rib Centres: 125 mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 56 kg/m2
Rib Centres: 125 mm

5A
Span Range: 2000 - 2500
mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 59 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 59 mm
Panel Weight: 59 kg/m2
Rib Centres: 100 mm

5B
Span Range: 2500 - 3000
mm
Deck Depth: 200 mm
Panel Height: 69 mm
Panel Weight: 68 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 69 mm
Panel Weight: 68 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3000 - 3500
mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 3500 - 4000 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 4000 - 4500 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 4500 - 5000 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm
Deck Depth: 200 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm

3A
Span Range: 500 - 1200
mm
Deck Depth: 250 mm
Panel Height: 49 mm
Panel Weight: 28 kg/m2
Rib Centres: 150 mm
Deck Depth: 250 mm
Panel Height: 49 mm
Panel Weight: 28 kg/m2
Rib Centres: 150 mm

4
Span Range: 500 - 1200
mm
Deck Depth: 250 mm
Panel Height: 34 mm
Panel Weight: 32 kg/m2
Rib Centres: 125 mm
Deck Depth: 250 mm
Panel Height: 34 mm
Panel Weight: 32 kg/m2
Rib Centres: 125 mm

3B
Span Range: 1200 - 1500
mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 31 kg/m2
Rib Centres: 150 mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 31 kg/m2
Rib Centres: 150 mm

4A
Span Range: 1200 - 1500
mm
Deck Depth: 250 mm
Panel Height: 49 mm
Panel Weight: 38 kg/m2
Rib Centres: 125 mm
Deck Depth: 250 mm
Panel Height: 49 mm
Panel Weight: 38 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1200 - 1500
mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm

3B
Span Range: 1500 - 2000
mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 45 kg/m2
Rib Centres: 150 mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 45 kg/m2
Rib Centres: 150 mm

4B
Span Range: 1500 - 2000
mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 44 kg/m2
Rib Centres: 125 mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 44 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1500 - 2000
mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 43 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 59 mm
Panel Weight: 43 kg/m2
Rib Centres: 100 mm

3C
Span Range: 2000 - 2500
mm
Deck Depth: 250 mm
Panel Height: 74 mm
Panel Weight: 53 kg/m2
Rib Centres: 150 mm
Deck Depth: 250 mm
Panel Height: 74 mm
Panel Weight: 53 kg/m2
Rib Centres: 150 mm

4C
Span Range: 2000 - 2500
mm
Deck Depth: 250 mm
Panel Height: 69 mm
Panel Weight: 57 kg/m2
Rib Centres: 125 mm
Deck Depth: 250 mm
Panel Height: 69 mm
Panel Weight: 57 kg/m2
Rib Centres: 125 mm

5B
Span Range: 2000 - 2500
mm
Deck Depth: 250 mm
Panel Height: 69 mm
Panel Weight: 58 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 69 mm
Panel Weight: 58 kg/m2
Rib Centres: 100 mm

5B
Span Range: 2500 - 3000
mm
Deck Depth: 250 mm
Panel Height: 74 mm
Panel Weight: 72 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 74 mm
Panel Weight: 72 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3000 - 3500
mm
Deck Depth: 250 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3500 - 4000
mm
Deck Depth: 250 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 4000 - 4500 mm
Deck Depth: 250 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm
Deck Depth: 250 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm

3A
Span Range: 500 - 1200
mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 28 kg/m2
Rib Centres: 150 mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 28 kg/m2
Rib Centres: 150 mm

4A
Span Range: 500 - 1200
mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm

3A
Span Range: 1200 - 1500
mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 34 kg/m2
Rib Centres: 150 mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 34 kg/m2
Rib Centres: 150 mm

4A
Span Range: 1200 - 1500
mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 38 kg/m2
Rib Centres: 125 mm
Deck Depth: 275 mm
Panel Height: 49 mm
Panel Weight: 38 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1200 - 1500
mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm

3B
Span Range: 1500 - 2000
mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 45 kg/m2
Rib Centres: 150 mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 45 kg/m2
Rib Centres: 150 mm

4B
Span Range: 1500 - 2000
mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 50 kg/m2
Rib Centres: 125 mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 50 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1500 - 2000
mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 51 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 51 kg/m2
Rib Centres: 100 mm

3C
Span Range: 2000 - 2500
mm
Deck Depth: 275 mm
Panel Height: 74 mm
Panel Weight: 53 kg/m2
Rib Centres: 150 mm
Deck Depth: 275 mm
Panel Height: 74 mm
Panel Weight: 53 kg/m2
Rib Centres: 150 mm

4C
Span Range: 2000 - 2500
mm
Deck Depth: 275 mm
Panel Height: 69 mm
Panel Weight: 57 kg/m2
Rib Centres: 125 mm
Deck Depth: 275 mm
Panel Height: 69 mm
Panel Weight: 57 kg/m2
Rib Centres: 125 mm

5A
Span Range: 2000 - 2500
mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 67 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 59 mm
Panel Weight: 67 kg/m2
Rib Centres: 100 mm

5B
Span Range: 2500 - 3000
mm
Deck Depth: 275 mm
Panel Height: 74 mm
Panel Weight: 72 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 74 mm
Panel Weight: 72 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3000 - 3500
mm
Deck Depth: 275 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3500 - 4000
mm
Deck Depth: 275 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 4000 - 4500 mm
Deck Depth: 275 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm
Deck Depth: 275 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm

3A
Span Range: 500 - 1200
mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 28 kg/m2
Rib Centres: 150 mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 28 kg/m2
Rib Centres: 150 mm

4A
Span Range: 500 - 1200
mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm

3A
Span Range: 1200 - 1500
mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 39 kg/m2
Rib Centres: 150 mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 39 kg/m2
Rib Centres: 150 mm

4A
Span Range: 1200 - 1500
mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 38 kg/m2
Rib Centres: 125 mm
Deck Depth: 300 mm
Panel Height: 49 mm
Panel Weight: 38 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1200 - 1500
mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm

3B
Span Range: 1500 - 2000
mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 50 kg/m2
Rib Centres: 150 mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 50 kg/m2
Rib Centres: 150 mm

4B
Span Range: 1500 - 2000
mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 50 kg/m2
Rib Centres: 125 mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 50 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1500 - 2000
mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 51 kg/m2
Rib Centres: 100 mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 51 kg/m2
Rib Centres: 100 mm

3C
Span Range: 2000 - 2500
mm
Deck Depth: 300 mm
Panel Height: 74 mm
Panel Weight: 59 kg/m2
Rib Centres: 150 mm
Deck Depth: 300 mm
Panel Height: 74 mm
Panel Weight: 59 kg/m2
Rib Centres: 150 mm

4C
Span Range: 2000 - 2500
mm
Deck Depth: 300 mm
Panel Height: 69 mm
Panel Weight: 57 kg/m2
Rib Centres: 125 mm
Deck Depth: 300 mm
Panel Height: 69 mm
Panel Weight: 57 kg/m2
Rib Centres: 125 mm

5A
Span Range: 2000 - 2500
mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 67 kg/m2
Rib Centres: 100 mm
Deck Depth: 300 mm
Panel Height: 59 mm
Panel Weight: 67 kg/m2
Rib Centres: 100 mm

5B
Span Range: 2500 - 3000
mm
Deck Depth: 300 mm
Panel Height: 74 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 300 mm
Panel Height: 74 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3000 - 3500
mm
Deck Depth: 300 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 300 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 3500 - 4000 mm
Deck Depth: 300 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm
Deck Depth: 300 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm

3A
Span Range: 500 - 1200
mm
Deck Depth: 350 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 150 mm
Deck Depth: 350 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 150 mm

4A
Span Range: 500 - 1200
mm
Deck Depth: 350 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm
Deck Depth: 350 mm
Panel Height: 49 mm
Panel Weight: 30 kg/m2
Rib Centres: 125 mm

3B
Span Range: 1200 - 1500
mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 150 mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 150 mm

4A
Span Range: 1200 - 1500
mm
Deck Depth: 350 mm
Panel Height: 49 mm
Panel Weight: 43 kg/m2
Rib Centres: 125 mm
Deck Depth: 350 mm
Panel Height: 49 mm
Panel Weight: 43 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1200 - 1500
mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 39 kg/m2
Rib Centres: 100 mm

3C
Span Range: 1500 - 2000
mm
Deck Depth: 350 mm
Panel Height: 69 mm
Panel Weight: 50 kg/m2
Rib Centres: 150 mm
Deck Depth: 350 mm
Panel Height: 69 mm
Panel Weight: 50 kg/m2
Rib Centres: 150 mm

4B
Span Range: 1500 - 2000
mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 56 kg/m2
Rib Centres: 125 mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 56 kg/m2
Rib Centres: 125 mm

5A
Span Range: 1500 - 2000
mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 59 kg/m2
Rib Centres: 100 mm
Deck Depth: 350 mm
Panel Height: 59 mm
Panel Weight: 59 kg/m2
Rib Centres: 100 mm

3C
Span Range: 2000 - 2500
mm
Deck Depth: 350 mm
Panel Height: 74 mm
Panel Weight: 59 kg/m2
Rib Centres: 150 mm
Deck Depth: 350 mm
Panel Height: 74 mm
Panel Weight: 59 kg/m2
Rib Centres: 150 mm

4C
Span Range: 2000 - 2500
mm
Deck Depth: 350 mm
Panel Height: 74 mm
Panel Weight: 61 kg/m2
Rib Centres: 125 mm
Deck Depth: 350 mm
Panel Height: 74 mm
Panel Weight: 61 kg/m2
Rib Centres: 125 mm

5B
Span Range: 2000 - 2500
mm
Deck Depth: 350 mm
Panel Height: 74 mm
Panel Weight: 62 kg/m2
Rib Centres: 100 mm
Deck Depth: 350 mm
Panel Height: 74 mm
Panel Weight: 62 kg/m2
Rib Centres: 100 mm

5C
Span Range: 2500 - 3000
mm
Deck Depth: 350 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm
Deck Depth: 350 mm
Panel Height: 99 mm
Panel Weight: 80 kg/m2
Rib Centres: 100 mm

5C
Span Range: 3000 - 3500
mm
Deck Depth: 350 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm
Deck Depth: 350 mm
Panel Height: 99 mm
Panel Weight: 94 kg/m2
Rib Centres: 100 mm

5C
Span
Range: 3500 - 4000 mm
Deck Depth: 350 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm
Deck Depth: 350 mm
Panel Height: 99 mm
Panel Weight: 108 kg/m2
Rib Centres: 100 mm