HIGH-QUALITY ALUMINIUM

Square Hollow

A versatile solution with optimal strength and corrosion resistance for various industrial and construction needs. Designed to meet quality standards for excellent structural strength and superior finishing results.

The Best Square Hollow (Square Edge) for Your Project

SECTION A (mm) T (mm) W (Kg/m)
4001211.500.800.093
4001312.001.000.119
4001412.000.900.108
4001512.701.300.161
4003015.881.200.191
4003115.801.000.160
4003215.881.000.161
4003416.002.000.303
4005019.001.500.285
4005920.001.200.244
4007022.001.200.271
4008022.001.500.333
4010025.001.200.310
4010125.000.800.210
4011025.001.500.382
4011125.400.900.239
4011225.401.000.264
4012040.001.200.505
4012140.000.900.381
4012240.001.000.423
4012350.003.501.764
4012440.004.001.561
4012640.001.500.626
4012740.001.800.751
4013038.101.500.596
4013138.101.000.402
4014120.001.400.282
4015138.101.200.480
4019037.000.900.352
4020030.001.200.374
4701619.001.200.232
4712330.002.000.607
4715130.003.050.980

The Best Square Hollow (Rounded Edge) for Your Project

SECTION A (mm) T (mm) R (mm) W (Kg/m)
4005119.001.002.000.188
4006220.002.001.500.390
4006320.003.000.500.552
4010225.001.201.000.307
4011325.002.000.700.498
4011940.001.500.700.625
4012140.000.900.300.381
4014020.001.401.000.280
4015038.100.900.300.363
4700015.001.202.000.171
4700144.451.202.000.555
4700250.001.502.000.780
4700319.001.202.000.224
4700419.001.452.000.267
4700560.002.002.001.248
4700619.051.000.700.195
4700725.001.000.700.259
4700830.001.402.000.426
4700919.001.200.700.230
4701019.001.502.000.276
4701150.001.202.500.624
47014100.002.002.003.154
4701720.001.401.000.280
4703015.881.000.700.160
4703219.001.002.000.188
4710325.001.401.000.356
4710425.001.202.000.301
4710525.001.002.000.253
4711025.401.503.000.373
4712040.002.002.000.814
4712140.001.502.000.617
4712240.001.500.700.625
4712530.002.002.000.598
4714020.001.401.000.280
4714120.001.502.000.292
4714220.001.202.000.237
4714320.002.002.000.381
4714516.001.002.000.156
4714630.001.202.000.367
4714740.001.202.000.497
4715076.202.002.001.608

Our Selected Aluminium Material Specifications

The Strength of Aluminum for Outdoor Spaces

Our aluminum can be used to create a wide range of your needs such as outdoor furniture, partition systems, rolling doors, and more. Elevate your outdoor living area with our premium aluminum furniture collection.

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Why Choose Us

STRENGTH

Aluminium material with a solid structure that provides high resistance to pressure and heavy loads, making it ideal for industrial and construction requirements.

30-DAY WARRANTY

We provide a 30-day product quality guarantee to ensure you receive material that meets the highest standards and is free from production defects.

MULTIPLE FINISHING

Available in anodizing, powder coating, and mill finish options, offering durability and a clean appearance for various applications.

FORMABILITY

Aluminium offers excellent formability, allowing it to be easily shaped and fabricated into various designs without compromising strength ideal for custom and complex applications.

CUSTOM DESIGN

Bring design to us and we can turn your ideas into precise, high-quality aluminium solutions. Custom sizes, specification and finishing tailored to your project needs.

DOWNLOAD PRODUCT CATALOG AND MORE INFORMATION

INSIGHT

Understanding Square Hollow Aluminium

An aluminium square hollow, listed on American order forms as a square tube, is the closed box profile with all four sides equal: one dimension, one wall thickness, and a section that behaves identically whichever way you turn it. That symmetry is not a footnote. It is the reason square tubes dominate visible frames, furniture, and any structure designed faster than it is calculated. We extrude square hollow sections at our facility in Indonesia in 6063 and 6061, from 15 × 15 mm finger-sized tube to 100 × 100 mm structural posts.

Square Hollow or Square Tubes? Two Markets, Two Habits

This is one of the genuinely split names in the catalogue, beyond spelling. The UK, Australia, Canada, and Europe say square hollow, or write SHS, square hollow section, on structural drawings. The United States says square tubes or square tubing, and an American enquiry will rarely use the word hollow at all. Box section floats through fabrication shops in both markets, and the aluminium versus aluminum split runs underneath everything as usual.

Same die, same extrusion, two vocabularies. A square hollow quoted in London and a square tube quoted in Texas are the same bar on the same pallet, and we read both names as one product.

What a Square Tube Is

The cross-section is a closed square: side A by side A, a constant wall, and a small external corner radius straight from the die. A 40 × 40 × 2 mm square hollow gives you four identical 40 mm faces and 2 mm of wall the whole way round. Extruded from a single billet through a porthole die, the section carries no welded seam, and its corners take anodising and powder coat evenly where a folded box would crack its coating at the bend.

Symmetry Is the Specification

Here is what separates a square tube from its rectangular sibling, and it is a feature, not a compromise. A rectangular hollow demands a decision: which way does the deep face point? Get it wrong and the member gives up most of its stiffness. A square hollow has no wrong way. Bending stiffness is identical about both axes, every face is a fixing face, and every orientation is the right orientation.

Our position: when the load direction is mixed, unknown, or simply not worth engineering, the square tube is the honest default. Frames get assembled by people, not by load diagrams, and a profile that cannot be installed backwards removes an entire category of site error. When the load clearly runs one way, the directional profile on our Rectangular Hollow page does the same job with less metal.

The Mitre Advantage Nobody Mentions

Square hollows carry one fabrication bonus that rarely appears on a datasheet. Cut any face at 45 degrees and it meets its neighbour perfectly, because every face is the same width. Picture frames, display plinths, table bases, and door frames in square tube close their corners with clean mitres in any plane, no offcut maths, no handed parts. The same joint in rectangular section needs matched orientations and two different mitre widths. For workshops building visible frames, that one property pays for itself in saved setup time every single day.

Where Square Hollow Sections Get Used

  • Structural frames, posts, columns, and bracing where equal stiffness both ways simplifies the design.
  • Furniture and display, table legs, shelving frames, and retail fixtures where the square tube is the visible finish.
  • Light fabrication, jigs, trolleys, guards, and brackets built by eye and by experience.
  • DIY and small projects, because flat faces, light weight, and no rust forgive the home workshop's tools.
  • Balustrade and fencing posts, where the same face shows from every approach angle.

Specifications

Parameter

Detail

Sizes (A × A)

15 × 15 to 100 × 100 mm

Wall thickness

0.8 to 3 mm

Standard length

6 m (cut-to-size available)

Alloys

6063-T5 (architectural, furniture), 6061-T6 (structural)

Finishes

Mill, anodised (15 micron architectural standard), powder-coated

Square hollow sizes outside this table, and non-standard walls, can be extruded from the die library or from a custom die against your drawing.

Choosing the Alloy

The catalogue's standing split applies to square tubes unchanged. 6063-T5, yielding near 145 MPa, is the furniture and frame alloy: it extrudes thin walls cleanly and anodises evenly across all four faces. 6061-T6, near 240 MPa, belongs in posts, columns, and frames that carry calculated load. For visible structural work, the question answers itself: specify 6061 and finish it anyway, because a square hollow on show is doing two jobs and should be specified for both.

Custom Square Tubes from Indonesia

The three service levels run as they do across our range. Cut-to-size square hollow ships from stock dies against your cutting list, square-ended and deburred. The die library covers in-between sizes and heavier walls. And a custom die can add what the standard square tube lacks: internal screw bosses for end caps, a single T-slot face for fixings, or asymmetric walls where one face takes the screws and the others stay slim.

Send the cutting list, the frame drawing, or just the size and duty, and our team will reply with an alloy recommendation, price, and lead time from our factory and warehouse in Indonesia. Request a sample length first if you want the square tube in hand before the order runs.

Need Something More Specific?

If you can’t find the service or package that fits your needs, our team is ready to help with a custom solution tailored to your campaign, business goals, and budget. Feel free to contact us for a personalized quote.