What makes aluminium box section connectors different from other tube fittings?

Aluminium box section connectors differ from other tube fittings in that they don’t require any welding or metal hardware such as bolts and screws. They simply slot together, allowing frameworks to be constructed and taken down with ease.

Are all connectors compatible with your aluminium square tubes?

All our aluminium connectors are compatible with our aluminium square tubes, allowing for an easy, slot-together construction right from delivery.

What are the external measurements of the aluminium square tubes?

Our aluminium square tubes have an external measurement of 25 x 25mm.

What are the internal measurements of the aluminium square tubes?

All our aluminium square tubes have an internal measurement of 22 x 22mm.

Is aluminium framework suitable for outdoor use?

Yes. Aluminium is highly durable and corrosion-resistant, making it the perfect material for outdoor use.

Are there any finishing options available for your aluminium tubes?

As standard, our aluminium box sections come in either milled or powder coated options , with a choice of black or white. If you require different colours or finishes, just get in touch with our friendly team who can provide you with exactly what you need.

Do you offer bulk discounts for larger orders?

For bulk discounts on larger orders, reach out to our team who can discuss your requirements with you.

What locations do you cover?

We supply our aluminium products to customers from Cornwall to Scotland, Wales to Lowestoft and internationally. We cover all UK areas in between, including Northampton , Manchester , Oldbury , London and Handsworth .

Aluminium Square Tube and Connectors (Frame Builder)

Aluminium box section connectors are the ideal minimum-fuss solution for quick, sturdy and lightweight construction. At Aluminium Online, we stock a wide range of aluminium tubing and fittings, all available for next-day delivery and in various finishes.

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Products	Price From	Action
Need a Custom Length? We can cut your product to size — including 1 free cut on many products.		Custom Cutting Options
Square Tube 25mm x 25mm x 1.5mm Mill Finish	From: £6.56 ^{Ex VAT} £7.87 ^{Inc VAT}	Choose Length This product has multiple variants. The options may be chosen on the product page
Frame Connectors – End Caps 25mm	£0.50 ^{Ex VAT} £0.60 ^{Inc VAT}	Add to basket
Frame Connectors – Oversized End Caps 25mm	£0.50 ^{Ex VAT} £0.60 ^{Inc VAT}	Add to basket
Frame Connectors – Elbow (2 way) 25mm	£1.86 ^{Ex VAT} £2.23 ^{Inc VAT}	Add to basket
Frame Connectors – 3 Way Tee 25mm	£2.40 ^{Ex VAT} £2.88 ^{Inc VAT}	Add to basket
Frame Connectors – 3 way corner 25mm	£2.40 ^{Ex VAT} £2.88 ^{Inc VAT}	Add to basket
Frame Connectors – 4 way corner 25mm	£3.00 ^{Ex VAT} £3.60 ^{Inc VAT}	Add to basket
Frame Connectors – 4 way flat 25mm	£3.16 ^{Ex VAT} £3.79 ^{Inc VAT}	Add to basket
Frame Connectors – 5 way 25mm	£3.66 ^{Ex VAT} £4.39 ^{Inc VAT}	Add to basket
Frame Connectors – 6 way 25mm	£4.36 ^{Ex VAT} £5.23 ^{Inc VAT}	Add to basket
Square Tube 25mm x 25mm x 1.5mm Powder Coated RAL9010 (Pure White) Satin	From: £28.00 ^{Ex VAT} £33.60 ^{Inc VAT}	Choose Length This product has multiple variants. The options may be chosen on the product page
Square Tube 25mm x 25mm x 1.5mm Powder Coated RAL 9005 (Jet Black) Matt	From: £28.00 ^{Ex VAT} £33.60 ^{Inc VAT}	Out of Stock This product has multiple variants. The options may be chosen on the product page
Square Tube 25mm x 25mm x 1.5mm Powder Coated RAL 7012 (Basalt Grey) Matt	From: £28.00 ^{Ex VAT} £33.60 ^{Inc VAT}	Out of Stock This product has multiple variants. The options may be chosen on the product page
Square Tube 25mm x 25mm x 1.5mm Powder Coated RAL 7038 satin	From: £28.00 ^{Ex VAT} £33.60 ^{Inc VAT}	Choose Length This product has multiple variants. The options may be chosen on the product page
Square Tube 25mm x 25mm x 1.5mm Powder Coated RAL 9006 (White Aluminium) Satin	From: £28.00 ^{Ex VAT} £33.60 ^{Inc VAT}	Choose Length This product has multiple variants. The options may be chosen on the product page
Square Tube 25mm x 25mm x 1.5mm Powder Coated RAL 3007 (Black Red) Matt	From: £28.00 ^{Ex VAT} £33.60 ^{Inc VAT}	Choose Length This product has multiple variants. The options may be chosen on the product page

About

What Are Aluminium Box Section Connectors?

Aluminium box section connectors are connecting joints, usually made from plastic, used to slot pieces of aluminium box section together for an easy, quick construction. They are commonly used as frame builders for short-term erections such as tents, gazebos and marquees, offering a practical solution for temporary structures.

These connectors are available in a range of configurations, including 3-way to 6-way tube connectors, making them highly versatile for different structural needs. Designed to work seamlessly with aluminium square tubes, they provide a reliable and modular approach to construction. Our aluminium tubing and fittings come in various powder-coated finishes, allowing you to match aesthetic preferences or improve durability for outdoor use.

What Are Aluminium Connectors Used For?

Aluminium connectors are designed to link or connect, hence the name, various structural elements.

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Finishing Available

At Aluminium Online, we offer various finishing services to enhance the appearance, corrosion resistance and durability of your extrusion. Reach out to us if you require any powder coating, polishing or anodising finishes to your extrusion.

Our Process

Step 01

Choose a Product

Choose from our wide range of aluminium profiles, select the required quantity, then simply click on ‘add to basket’.

Step 02

Make a Secure Payment

Once you’ve placed all your shopping list items into your cart, proceed to the checkout to complete your transaction with our secure payment system, which accepts PayPal and all major credit cards.

Step 03

Quick Delivery

Our service offers next-day delivery across the UK for all orders made before 1pm, Monday to Friday. Orders placed during the weekend will be shipped early on Monday morning.

Step 04

After Sale Support

In the rare event you receive any items that are defective or damaged, we offer a 30-day return policy. For any questions related to your purchase or our products, please call us on 0121 272 2865.

What makes aluminium box section connectors different from other tube fittings?

Aluminium box section connectors differ from other tube fittings in that they don’t require any welding or metal hardware such as bolts and screws. They simply slot together, allowing frameworks to be constructed and taken down with ease.
Are all connectors compatible with your aluminium square tubes?

All our aluminium connectors are compatible with our aluminium square tubes, allowing for an easy, slot-together construction right from delivery.
What are the external measurements of the aluminium square tubes?

Our aluminium square tubes have an external measurement of 25 x 25mm.
What are the internal measurements of the aluminium square tubes?

All our aluminium square tubes have an internal measurement of 22 x 22mm.
Is aluminium framework suitable for outdoor use?

Yes. Aluminium is highly durable and corrosion-resistant, making it the perfect material for outdoor use.
Are there any finishing options available for your aluminium tubes?

As standard, our aluminium box sections come in either milled or powder coated options, with a choice of black or white. If you require different colours or finishes, just get in touch with our friendly team who can provide you with exactly what you need.
Do you offer bulk discounts for larger orders?

For bulk discounts on larger orders, reach out to our team who can discuss your requirements with you.
What locations do you cover?

We supply our aluminium products to customers from Cornwall to Scotland, Wales to Lowestoft and internationally. We cover all UK areas in between, including Northampton, Manchester, Oldbury, London and Handsworth.