The original Mega Square is available in a 300 mm, 200 mm, 150 mm & 100 mm sizes with two material choices: Cast Iron (FE) with Dragon Scale Coating or Cast Aluminum (AL). All Mega Squares feature a stiff “flange and web” design that is fully machined on all outer edges with tapped holes for mounting tabs.
Patented Design
Clear joint access for welding, gluing, nailing, and more—ideal for any process needing workspace around the corner.
Use it like a V-block—stack round tubing inside and adjust placement easily for accurate positioning during welding.
Size: 300 x 300 x 76 mm
Flange: 76 mm
Weight: 4.5 kg
Weight: 10.5 kg
Size: 200 x 200 x 38 mm
Flange: 38 mm
Weight: 1.2 kg
Weight: 3.5 kg
Size: 150 x 150 x 38 mm
Flange: 38 mm
Weight: 1.0 kg
Weight: 1.6 kg
Size: 100 x 100 x 38 mm
Flange: 38 mm
Weight: 0.4 kg
Weight: 1.0 kg
300 mm Square
I-beam style — center-balanced and rigid.
100 mm, 150 mm & 200 mm Square
C-channel beam with offset web for edge-friendly use.
| Aluminum (AL) |
| Pros
|
| Cast Iron (FE) + Dragon Scale |
| Pros
Fireball’s new Dragon Scale coating provides the corrosion resistance of our previous black oxide finish with the added benefit of enhanced spatter resistance. It’s spatter resistance needs to be seen to believed; it out performs even the best weld spatter sprays without the use of any sprays. |
Our revolutionary tabs make welding tables optional.
We reinvented the game—just twist and go. No more hunting for the right tool!
Install our edge alignment pins on any square to create a large, overhanging edge which can be used to index the square on a different plane. Depending on the square, this allows you to create edges which are 90 degrees (perpendicular), 45 degrees, parallel, and even 60 and 30 degrees from the edge.
