Trapezium Industrial Legs

Box Section Legs can support up to 150kg, assuming an optimally built tabletop — structurally sound timber over 30mm thick, secured with appropriate fixings.

Made from 75mm x 25mm furniture-grade steel, the legs feature TIG and MIG welded joints and an extra-thick base plate. This construction makes them naturally strong and durable.

We care as much about build quality as we do about raw strength. Each leg is fixed with eight screws, but note: without bracing between legs, lateral wobble may occur on heavier tables.

For projects over 150kg or using less-than-ideal materials, we recommend our self-supporting table frames, which don’t rely on the tabletop for structural integrity.

Our table-height Industrial Box Section legs come in two widths: 58cm and 78cm.
• 58cm legs suit tabletops up to 120cm wide
• 78cm legs work best for 100–150cm wide tables

If your table is between 100–120cm, choose based on your preferred look and function—more overhang for extra seating space, or less for a chunkier, grounded feel.

For wood, use plain wood screws directly into the wooden surface for the most simple and durable fitting method. A small 1-2mm pilot hole is suggested for hardwoods to ease the screw in and reduce the risk of cracking.

In all of our table legs, we provide 4.5mm wood screws, suitable for most sized tables over 18mm thicker.

If you are building a large table, go as thick as a 5mm wood screw and maximise the length for your top to ensure the best engagement.

Threaded inserts can be a good choice if your project requires assembly/disassembly of the legs many times or you are shipping off to a customer and want a more professional finish. We suggest using an M5 bolt / 5mm threaded insert to fit into our legs 6mm hole. This provides a little wiggle room for wood expansion and hole alignment.

Box section leg placement is largely a matter of choice.. If you want chairs at the end of your table, we advise setting those legs inward by approximately 30-40cm. For more information, feel free to download our detailed box section build guide.

These legs are not freestanding. Therefore it is important that you are able to get a really strong attachment to your tabletop and ensure that the attachment will be able to withstand the weight of the table.

For materials that are not easy to screw the legs directly into, your simplest and most reliable options we have would be to use one of our free standing table frames.

These are incredibly strong and will be suitable for the heaviest projects. Depending on the specs and intended use for your table, you may be able to rest the top on the frame, or if you want to secure the top to the frame, you can simply use glue or even some heavy-duty double-sided tape.

If you would prefer to use some of our non-freestanding legs, then an excellent way to ensure you get a strong fixing would be to glue a piece of 24mm plywood, cut a bit smaller than your top surface, to the underside using a strong adhesive to then screw the legs into that.

Some Ikea, laminate or veneer tabletops will not be made of solid wood, but instead have a chipboard, particleboard or sometimes even honeycomb or hollow structure inside. These materials will not be strong enough for you to screw into, and will likely degrade around the screw resulting in a wobble or potentially even dangerous table.

You should check the product description to find out what these tabletops are made of, and if they are not solid wood or something strong like plywood then it might be best to choose one of our free standing table frames.

As the table frames are freestanding themselves, you will not need to worry about getting a really strong attachment, and you may be able just to rest the top on the frame. Or if you want to secure the top to the frame, you can simply use glue or even some heavy-duty double-sided tape.

If you would prefer to use some of our non-freestanding legs, then an excellent way to ensure you get a strong fixing would be to glue a piece of 24mm plywood, cut a bit smaller than your top surface, to the underside using a strong adhesive to then screw the legs into that.

Officially these legs are not rated for outdoor use. While powder coating offers good water resistance, some types can still allow moisture to penetrate, leading to rust over time.

That said, many of our customers do use them outdoors:

• Raw Steel: Will rust almost immediately when exposed to the elements. Some customers choose this intentionally for its industrial, weathered look. Once the desired rust finish is achieved, a product like Owatrol Paint Conditioner Oil can be applied to seal the surface and prevent further corrosion.
• Clear Coat: Designed to give a raw steel appearance while preventing rust or oil transfer indoors. However, it’s not suitable for outdoor use and will rust quickly outside.
• Opaque Powder Coats: Offer a reasonable level of protection outdoors, but they are not official outdoor coatings and are not covered under our outdoor guarantee. To prolong life, ensure: 1) Contact points with the ground are sealed or elevated. 2) Any chips or scratches are promptly touched up to prevent rust from spreading under the coating.

While many of our products are designed for indoor use, several are suitable for outdoor settings — all of which can be found in our Outdoor Collection.

However, “outdoor suitability” exists on a spectrum. Some products are more resilient than others, depending on materials and finishes:

• Consumer-grade Protection: Products treated with outdoor-rated powder coat paint offer reasonable durability for residential use.
• Commercial-grade protection: For the highest level of outdoor durability, we use non-rusting base materials such as galvanised steel, 316 stainless steel, or aluminium.

Standard powder-coated products aren’t necessarily unsuitable for outdoor use, but they may require more care and may not last as long when exposed to the elements. Some customers report years of outdoor use without issue, while others may notice wear more quickly — depending on exposure and maintenance.

Coastal environments require extra care.For seaside locations, we strongly recommend our 316 Stainless Steel Hairpin Legs. These provide marine-grade corrosion resistance and are designed to withstand the harsh, salt-rich air. Steel can and will rust over time — especially near the coast — so stainless steel is the best choice for long-term performance.

If you’re unsure which option suits your space, feel free to contact us for tailored advice.

We take great pride in our product quality and back it with a 5-year residential indoor guarantee.

Changed your mind? No problem — you can return unused items within 60 days of purchase. For full details, see our returns policy.

Have questions? Just get in touch — we’re always happy to help.

Sorry, but we currently only offer our products in complete sets. Whether it's a set of legs for a table or a set of brackets for a shelf, our items are sold in full packs. This helps us ensure that every set you receive is 100% identical.

Our meticulous manufacturing process involves hand-crafting most items using materials from the same batch. This allows consistency across all pieces in a set, from the same welder welding to the same painter painting. We appreciate your understanding and assure you that this approach allows us to maintain our high standards of quality.

Yes, we do!

You can apply for a trade account at trade.thehairpinlegcompany.co.uk. We offer competitive pricing on all of our products with single, bulk and drop-ship options.

We have the capacity for both one-off and bulk orders. Please note that setup costs start from £300, which often suits premium or larger volume orders. Do get in touch with us to discuss your needs.