If you’ve ever stood at the back of a concert venue, watching a crew hoist lighting rigs or speaker stacks 60 feet above the stage without a single wobble, you’ve likely interacted with truss—those metal frames that turn chaotic event spaces into functional, safe areas for everything from music tours to corporate trade shows. As someone who’s been supplying tubular truss for over a decade, I’ve lost count of how many times potential clients call with the same question: “Which is lighter—tubular or solid truss?” The answer isn’t as simple as “one is always lighter” because weight depends on way more than just the metal bar you hold in your hand. Today, I’m breaking down the real weight differences between tubular truss and its solid (often called “box” or “I-beam”) counterpart, from the engineering math we use every day to the on-the-ground experience that comes with delivering truss to events across North America. Tubular Truss
First, let’s get clear on what we’re talking about. Tubular truss—what I sell—has a hollow, round (occasionally square or rectangular) metal core. It’s made by welding two parallel top and bottom chords, connected by diagonal and horizontal cross-members, forming a lightweight frame that distributes weight evenly. Solid truss, by contrast, is a solid bar of steel or aluminum, cut to length with no hollow core. It’s thicker, sturdier in some ways, but far denser per linear foot. To make this concrete, let’s use aluminum as our baseline, since 90% of the truss I supply is 6061-T6 aluminum—light, strong, and the industry standard for events. For a common 12-inch diameter tubular truss, the typical weight is around 1.2 pounds per linear foot (plf) for a straight section. A similar-strength solid aluminum bar? That’s 3.8 pounds plf. Wait, that’s a massive difference—3 times heavier? But before you jump to buy all tubular truss, let’s talk about why that math works, because it’s not just about hollow space; it’s about how material is arranged.
Engineers talk about “moment of inertia” when designing structural components like truss. Moment of inertia measures how well a shape resists bending under load. Think of a ruler: if you hold it flat, it bends easily (low moment of inertia), but if you stand it on edge, it barely bends at all (high moment of inertia). For truss, the load (lighting, speakers, people) rests on the top and bottom edges, so placing the majority of the material as far apart from each other as possible maximizes moment of inertia without adding extra weight. Tubular truss does exactly that: its top and bottom chords are the two parallel bars, and the hollow space between them lets us position that material far apart, while only using small cross-members to connect them. Solid truss, on the other hand, has all its material in one solid mass, so a lot of that metal is wasted in the middle where it doesn’t help resist bending. For every pound of metal I use in tubular truss, a solid truss manufacturer would need 3 times that same metal to get the same load-bearing capacity. That’s why when we’re quoting a 50-foot truss section, our tubular option is 60 pounds total, while a solid equivalent is 190 pounds—enough to make a 3-person crew break a sweat just moving a single section, compared to our tubular truss that two people can carry easily.
But wait, solid truss has its place, and weight isn’t the only factor. Let’s get into the variables that shift these numbers, because not all tubular truss is 1.2 plf and not all solid truss is 3.8 plf. First, material: if we use steel instead of aluminum, tubular steel truss is around 3 plf for that same 12-inch size, while solid steel is 9.5 plf—still 3x heavier. But if you go bigger? Say a 24-inch truss for holding a full line array of speakers. A tubular aluminum truss for that is 2.8 plf, and a solid aluminum equivalent is 8.7 plf—again, roughly 3x heavier. That ratio holds across sizes because it’s based on the structural design: tubular truss only uses material where it’s needed, so weight scales linearly with size, while solid truss’s weight scales with its cross-sectional area, which grows faster than structural need.
I’ve seen clients try to cut costs by going solid truss for small jobs, and it never ends well. Last year, a regional event planner called me upset because he’d rented 100 feet of solid truss for a corporate holiday party in downtown Chicago. The crew he hired was 4 people, and they spent 3 hours just moving and lifting the truss sections—enough that they went over time on the load-in, adding $1,200 to the event budget. By the time the truss was rigged, the party crew had to rush set-up, and half the decor was hung crooked because no one had energy left after hauling metal. He ended up returning the solid truss early, eating a 20% restocking fee, and switching to my tubular truss for his next event. “I didn’t realize how much extra weight would kill my crew’s time and my budget,” he told me. That’s the thing about truss weight: it’s not just a number on a spec sheet. It affects labor costs, load-in time, how much gear you can fit in a truck, and even safety—heavier truss is harder to secure, so there’s more risk of it shifting during an event.
But let’s be fair: tubular truss isn’t always lighter in every scenario. If you’re looking at a very short span, like a 10-foot truss for a small light set, solid truss might actually be comparable in weight. A 10-foot solid aluminum bar is 38 pounds, while a tubular truss for the same span is about 12 pounds. Wait, even then, tubular is lighter. The only time solid truss is “lighter” is when you’re comparing a solid bar that’s not engineered for load, just a random metal bar. But if we’re talking about truss that’s rated for event use—meaning it’s tested to hold a specific weight at a specific span—tubular truss is always lighter. That’s a key point. A lot of cheap, unrated truss sold online is solid, but it’s not certified to hold lighting or speakers, so it’s not safe for professional use. The rated tubular truss I supply is tested to meet industry standards from organizations like the Entertainment Services and Technology Association (ESTA), while most solid “event-grade” truss is often under-rated, so you’re not getting the load capacity you think.
Another factor: aluminum vs steel. Solid steel truss is even heavier than aluminum solid truss—around 11 plf for a 12-inch solid steel bar, compared to tubular steel’s 3 plf. So if you’re considering steel for extra durability, tubular steel is still way lighter than solid steel. I’ve supplied tubular steel truss for outdoor music festivals where wind can be a factor, and even though it’s a bit heavier than aluminum tubular truss, it’s still half the weight of solid steel, so crews can rig it faster and easier.
Now, let’s talk about what this means for your bottom line, because that’s what most clients care about. When you add up the cost of labor for moving heavier truss, extra truck space (you can fit 5x more tubular truss than solid truss in the same truck), and the risk of damage to gear or injury from heavy lifting, tubular truss almost always works out cheaper than solid truss, even if the upfront rental or purchase price per linear foot is a tiny bit higher. Let’s do quick math: a 100-foot section of tubular aluminum truss is $200 to rent, and a solid equivalent is $150. But tubular truss is 120 pounds total, solid is 380 pounds. Labor to move tubular: 1 hour, $50. Labor to move solid: 3 hours, $150. Truck space: tubular fits in one 10-foot truck bed, solid needs two. Extra truck cost: $200. Total cost for tubular: $200 + $50 = $250. Total cost for solid: $150 + $150 + $200 = $500. That’s a $250 difference for the same job, just because of weight. I’ve run these numbers for hundreds of clients, and 9 times out of 10, they go with tubular truss once they see the full picture.
I also want to address a common misconception I hear all the time: “Solid truss is stronger.” It’s true that solid truss has a higher compressive strength, meaning it can hold more weight if you’re pushing straight down on it, but that’s not how truss is used. Truss is always under bending load—from the weight of the rigging, wind, even people leaning on it. For bending load, tubular truss is just as strong as solid truss for the same weight. That’s the engineering magic of tubular design: it uses material efficiency to match solid truss’s bending strength at a fraction of the weight. A study from the American Institute of Steel Construction found that tubular truss has a 30-40% higher strength-to-weight ratio than solid I-beams, which translates directly to real-world event use.
Last year, I worked with a production company doing a tour for a popular indie band. They’d used solid truss on their previous tour, and the crew was complaining about back injuries from lifting. We supplied all the tubular truss, and their load-in time went from 12 hours to 8 hours. They saved $2,000 on labor alone, and the crew told me there was almost no fatigue by the end of the day. “We used to dread rigging,” their stage manager said. “Now we get done early and have time to set up the band’s gear properly.” That’s the kind of impact weight differences make—they don’t just show up in a spec sheet; they affect people’s jobs, event timelines, and even the quality of the final production.
Now, I know some of you might still be thinking, “But I need something extra heavy-duty for my big event.” For that, tubular truss comes in heavy-duty options too. We make heavy-duty tubular truss for line arrays that hold up to 10,000 pounds at a 30-foot span, and that’s still only 4 plf—compared to a solid truss that can only hold 8,000 pounds at the same span, and weighs 12 plf. So even in the heaviest load scenarios, tubular truss outperforms solid truss on weight.
At the end of the day, the weight difference between tubular and solid truss isn’t just a technical detail. It’s about practicality. It’s about whether your crew can load in an event on time, without burning out. It’s about whether you can fit all your truss and gear in one truck, instead of renting two. It’s about safety—less heavy lifting means less chance of injury. As a tubular truss supplier, I’ve seen first-hand how choosing the right truss, based on weight and engineering, makes a huge difference for every event I work on.
If you’re planning an event and trying to figure out which truss is right for you, I’m here to help. I can send you custom quotes, share test data for our tubular truss, or walk you through the pros and cons based on your specific span and load needs. Don’t let weight be an afterthought—talk to me, and we’ll make sure you get the right truss for your job.
Steel Platform with Stair References
Entertainment Services and Technology Association. (2022). ANSI E1.4-2022: Structural Safety Requirements for Professional and Amateur Theater, Arena, and Touring Applications. ESTA.
American Institute of Steel Construction. (2021). Steel Truss Design Manual, 4th ed. AISC.
National Safety Council. (2023). Workplace Injury Prevention for Material Handling in Event and Live Entertainment Industries. NSC.
Aluminum Association. (2020). 6061-T6 Aluminum Structural Properties for Event Truss Applications. AA.
Suzhou Wanyu Steel Structure Construction and Installation Engineering Co., Ltd.
With abundant experience, we are one of the most professional tubular truss manufacturers and suppliers in China. We warmly welcome you to buy customized tubular truss at competitive price from our factory. If you have any enquiry about pricelist, please feel free to email us.
Address: No. 78, Putian Road, Suzhou Industrial Park, Suzhou, Jiangsu Province
E-mail: Zhu@szwanyu.com
WebSite: https://www.wy-metalstructure.com/
