How to Build a DIY 8020 Aluminum Sim Rig

Step-by-step guide to building a rigid cockpit from aluminum extrusion.

Selecting the Right 8020 Aluminum Profile and Components

Building your own sim racing rig from 8020 aluminum extrusion is one of the most rewarding projects you can take on as a sim racer. The 8020 system—named after the 80/20 principle but also a brand leader in industrial framing—offers incredible rigidity, precision, and expandability. To start, you’ll want to source 1515 or 2020 series aluminum extrusions. The 1515 (15mm x 15mm) is lighter and more cost-effective, perfect for a compact to mid-sized rig, while 2020 (20mm x 20mm) adds noticeable stiffness for larger builds or when mounting a wheel, pedals, handbrake, and shifter all in one frame.

Visit 8020.net or check out Automation24 and McMaster-Carr for availability—they carry compatible T-slots, fasteners, and brackets. For a standard seated cockpit, plan on using 6–8 feet of extrusion cut to size. I recommend pre-cut lengths with tapped holes to save time, though you can cut them yourself with a quality miter saw and masking tape to prevent aluminum shavings from contaminating the T-slot. Corner brackets with T-bolts and nuts make assembly tool-friendly and allow for disassembly later—handy if you ever upgrade or move. Don’t skip the internal brace kits; they lock joints from twisting under load, which matters when you’re yanking the wheel through the chicanes at Suzuka or battling in traffic at Spa.

Designing a Stable, Adjustable Cockpit Frame

Before tightening a single bolt, sketch out a frame that supports your sim racing gear while fitting your space. A typical seated rig sits 24–30 inches deep, 36–40 inches wide, and about 40 inches tall. I’ve found that anchoring the rig to the floor with furniture brackets or heavy-duty caster mounts (with brakes engaged) drastically reduces feedback transfer and chassis wobble during aggressive inputs. If you're using an entry-level seat like the Ferratum Home Sim Rig or even a Next Level Racing GTTrack, measure its footprint and build the base frame accordingly.

Start by constructing a rectangular base with front and rear crossbeams using 2020 extrusion for maximum torsional strength. Add vertical uprights at each corner—these will support the seat and hold your monitor arms or VR headset docking station later. Use angle brackets with dual fasteners on each joint; a single screw might hold, but two per corner ensures zero flex. For adjustability, consider sliding seat mounts. These let you fine-tune your seating position fore and aft using secondary horizontal rails mounted inside the main frame. Think like a real race engineer: position your pedals so your knees are slightly bent at full compression, and your wheel aligns with your chest at 90 degrees—critical for endurance comfort during 24-hour races at Daytona or the Nürburgring.

Mounting Your Sim Racing Hardware

Now comes the fun part—installing your gear. Most popular wheel bases like the Simucube 2 or Moza R9 come with universal mounting plates that fit T-slot profiles. Use low-profile T-nuts and stainless steel cap screws to clamp the plate directly to a horizontal 2020 beam. Position the wheel so the center hub is just above your sternum when seated—this replicates the real F1 or GT3 driving position seen in iRacing or ACC. For pedals, the Heusinkveld Sprint or Logitech G PRO need precise vertical or angled mounting. I prefer a footplate at a 12–15 degree angle for natural heel-toe action, especially on tracks with quick transitions like Monaco.

Use spacers and L-brackets to secure the pedal unit flush to the bottom frame. Don’t let it float—any movement under braking kills pedal feel. The shifter and handbrake are simpler: either surface-mount them to the side T-slot or build a support shelf with additional aluminum crossbeams. Need more space? Extend the primary frame laterally and add a third upright for dual monitors or a central dash like the Fanatec Podium Display. And for immersive sound, drill small holes in unused T-slots to feed power and audio cables cleanly through the frame—keeps your cockpit looking pro-level, not garage-tinkered.

Finishing Touches and Long-Term Upgrades

Once the structure is solid and all components are mounted, take a step back. Wiggle the wheel hard. Stomp the pedals. If anything creaks or shifts, track down the loose joint and reinforce it. I once skipped a brace on my first rig and discovered it during a downforce-heavy session in Assetto Corsa Competizione at Le Mans—my wheel twisted slightly under hard cornering. Lesson learned: overbuild, not underbuild. Apply thread locker to all fasteners exposed to vibration, especially those near the wheel base.

Aesthetics matter too. Choose black anodized extrusions for a stealthy look, or go raw silver for an industrial vibe. Cable management sleeves routed through the T-slots keep things tidy. Add rubber feet or anti-vibration pads under the base if your floor is hardwood or uneven—trust me, it makes a difference during long stints. And as you evolve, the 8020 system shines: bolt on a motion platform subframe, add a roll bar for VR head tracking, or expand to include a full GT-style triple-screen array. I’ve seen sim racers integrate seat coolers, fan simulators, and even rig-mounted GoPros for live-streaming their cockpit views.

Building your own 8020 sim rig isn’t just about saving money—it’s about creating a tailored racing cockpit that reflects your passion. Every bolt you tighten, every alignment you measure, gets you closer to a setup that feels professional, solid, and uniquely yours. Whether you're chasing podiums in iRacing endurance events or mastering hot laps in Gran Turismo 7, your DIY rig will be the foundation of every victory. Now grab those extrusions, fire up the drill, and start building—the virtual grid awaits.