Box Section / Square Tube

Aluminium Square Tube

Here we are looking at Aluminium Square Tube, also known as Aluminium Box Section or Aluminium Square Hollow Section. Our Aluminium Box Section is extruded in a mixture of grades 6063T6 and 6082T6. Being extruded means that the tubes are truly seamless and are perfectly square, which makes them great for use as straight edges as used by brick layers, builders, plasterers, tilers and other tradesmen.

An Aluminium Box Section has excellent corrosion resistance – it is perfect for outdoor applications as it will not rust. It is a lightweight product, just 1/3rd of the weight of steel box section, and it is excellent for welding. Therefore, an aluminium box section is often used to manufacture welded frames and bearers for applications such as commercial vehicle bodies, trailers, horse boxes and caravans. Should you require your Aluminium Box Section mitred and welded into a frame, please contact us for a quote.

We are a UK supplier of Aluminium Box Section that cut to size – simply select the nearest length from the drop down menu and then follow the instructions on screen to get your Aluminium Box Section cut back to your required length, Free Of Charge.


Showing all 22 results

Showing all 22 results

Trade Account

Credit accounts & discounts area available. Simply get in tocuh and speak to us directly.

Free Cutting Service

1 x Free Cut - per line item purchased - receive the item at the exact length required for the job

Folding Service

We are able to offer our Aluminium Sheets & Chequer Plates and Stainless Steel Sheets folded to the customers specifications

We also stock Plastic End Caps for some sizes of Aluminium Box Section – these are ideal to complete your project and give it that finished, professional look.

End caps are available to suit the following sizes of Aluminium Square Tube Box Section:

½” x ½” x 16swg
¾” x ¾” x 16swg
1” x 1” x 16swg
1.1/4” x 1.1/4” x 16swg
1.1/2” x 1.1/2” x 16swg
2” x 2” x 16swg

When measuring Aluminium Box Section, it is important to remember that the quoted sizes are external. If the internal hole size is important for your application, please see the table below.

Imperial Size

(Outside dimensions x Wall Thickness)

Metric Size

(Outside Dims x Wall Thickness)

Nominal Internal Dims.
       ½” x ½” x 16swg 12.7mm x 12.7mm x 1.63mm    9.44mm
       ¾” x ¾” x 16swg 19.05mm x 19.05mm x 1.63mm   15.79mm
       ¾” x ¾” x 10swg 19.05mm x 19.05mm x 3.26mm   12.53mm
       1” x 1” x 16swg 25.4mm x 25.4mm x 1.63mm   22.14mm
       1” x 1” x 10swg 25.4mm x 25.4mm x 3.26mm   18.88mm
       1.1/4” x 1.1/4” x 16swg 31.75mm x 31.75mm x 1.63mm   28.49mm
       1.1/4” x 1.1/4” x 10swg 31.75mm x 31.75mm x 3.26mm   25.23mm
       1.1/2” x 1.1/2” x 16swg 38.1mm x 38.1mm x 1.63mm   34.84mm
      1.1/2” x 1.1/2” x 10swg 38.1mm x 38.1mm x 3.26mm   31.58mm
      2” x 2” x 16swg 50.8mm x 50.8mm x 1.63mm   47.54mm
      2” x 2” x 10swg 50.8mm x 50.8mm x 3.26mm   44.28mm
      2.1/2” x 2.1/2” x 10swg 63.5mm x 63.5mm x 3.26mm   56.98mm
      3” x 3” x 10swg 76.2mm x 76.2mm x 3.26mm   69.68mm
      4” x 4” x ¼” 101.6mm x 101.6mm x 6.35mm   88.9mm