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FRP Square Hollow Sections

FRP Square Tube SQ 50.8 x 50.8 x 3.18 mm (2 x 2 in, 1/8 in Wall)

FRP Square Tube SQ 50.8 x 50.8 x 6.35 mm (2 x 2 in, 1/4 in Wall)

FRP Square Tube SQ 63.5 x 63.5 x 6.35 mm (2.5 x 2.5 in)

FRP Square Tube SQ 76.2 x 76.2 x 6.35 mm (3 x 3 in, 1/4 in Wall)

FRP Square Tube SQ 76.2 x 76.2 x 9.53 mm (3 x 3 in, 3/8 in Wall)

FRP Square Tube SQ 88.9 x 88.9 x 9.53 mm (3.5 x 3.5 in)

FRP Square Tube SQ 101.6 x 101.6 x 6.35 mm (4 x 4 in)

FRP Square Hollow Sections in Malaysia

Fiberglass (FRP) square hollow sections, also called square tubes, are used as posts, columns, handrail uprights, frames and supports where steel would rust. This range is part of our FRP Pultruded Profiles →.

Sizes

Model (mm)	Size
SQ 50.8 x 50.8 x 3.18 →	2 x 2 in, 1/8 in wall
SQ 50.8 x 50.8 x 6.35 →	2 x 2 in, 1/4 in wall
SQ 63.5 x 63.5 x 6.35 →	2.5 x 2.5 in
SQ 76.2 x 76.2 x 6.35 →	3 x 3 in, 1/4 in wall
SQ 76.2 x 76.2 x 9.53 →	3 x 3 in, 3/8 in wall
SQ 88.9 x 88.9 x 9.53 →	3.5 x 3.5 in
SQ 101.6 x 101.6 x 6.35 →	4 x 4 in

Sizes are outside width x outside width x wall thickness.

Material and Finish

Process: pultruded E-glass rovings and mat with a surface veil that keeps glass fibres from the surface and improves UV and corrosion resistance
Resin: isophthalic polyester as standard; vinyl ester or fire-retardant (ASTM E84) on request
Colour: RAL 7035 light grey; other colours on request
Properties: light, rust free, non-conductive and resistant to chemicals and salt air

Where They Are Used

Platforms and walkways, cooling towers, handrails and ladders, wastewater plants, chemical plants, marine and coastal structures, and electrical areas where steel would rust or conduct.

Other Profile Shapes

How to Order

Tell us the profile, size, quantity and length you need. We can also cut and fabricate profiles into frames, supports and handrails. See all FRP pultruded profiles →.

Frequently Asked Questions

Which wall thickness should I choose?
Thicker walls (6.35 or 9.53 mm) for posts and load-bearing frames; 3.18 mm for light frames.

Can square tubes be joined?
Yes, with FRP angles, brackets and stainless steel bolts, or bonded with structural adhesive.

What colour are they?
RAL 7035 light grey as standard.

Ringkasan: Tiub segi empat FRP 50.8 hingga 101.6 mm untuk tiang, rangka dan penyokong. Kalis karat.

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