Radius Square Tube

Radius Square Tube

Blended radius corners and a slight convex side provide greater strength than standard box section tubing. Popularly used for baluster railings and furniture.

The radius square tube design has blended radius corners and a slight convex side; this refined shape not only looks better than conventional box section tubing, but it is stronger. It is a popular alternative to round tube.

Due to its appealing softened corners and the range of available sizes, it is ideal for balustrade and handrail panels. The two largest tube sizes are suitable for newel posts (commonly known as staircase spindles). It is also ideal for medical furniture and laboratory equipment, when a wipe-clean environment is essential.

Our stainless steel and aluminium 5083 oval tube profiles are sold in lengths of 5.8m (the manufacturing process reduces the standard 6m length by 0.2 metres).


  • Staircases
  • Balusters
  • Spindles
  • Newels
  • Balustrades
  • Balconies
  • Railings
  • Furniture
  • Radiators
  • Lighting
  • Door handles
  • Kick rails
  • Decorative shrouds
  • Street signs
  • Queue management systems


Radius Square Tube Specifications.

The image above shows how dimensions are detailed (for example, 65mm x 27mm x 2mm).
Below is a table of the available stainless steel tube sizes that we have in our existing range for this shape of tube. Can’t see the tube sizes you need? Contact us to discuss your project requirements – we may be able to fabricate some custom-made sized tubing. Or download our sizing PDF, which contains sizing information for existing aluminium and brass tubing too, as well as all stainless steel sizes.

Radius Square Stainless Steel Tube Sizes

Width Height Depth
17mm 17mm 1.5mm
23mm 23mm 1.5mm
28mm 28mm 1.5mm
28mm 28mm 2mm
33mm 33mm 1.5mm
33mm 33mm 2mm
45mm 45mm 1.5mm
45mm 45mm 2mm
66mm 66mm 1.5mm
66mm 66mm 2mm
88mm 88mm 1.5mm
88mm 88mm 2mm

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