What is F34 square truss?
F34 is four-chord square truss: four aluminum tubes at the corners of a square, braced diagonally, joined end to end with conical connectors. It is the workhorse of the F-series and the profile you want for anything structural, because four chords resist bending in every direction rather than only one. If you are building a goalpost over a DJ booth, a roof grid, a trade show gantry or a span that has to carry moving heads, F34 is the normal answer.
What lengths and brands do you carry?
Straight segments from 0.34 ft (0.105 m) through 13.12 ft (4 m), all with conical connectors, from three brands: Global Truss SQ-41xx, ProX (XT-SQ, the XT-SQPL ladder truss and the economy K-Truss) and Show Solutions SCT290. Wall thickness depends on the line: 2 mm on Global Truss SQ-41xx and ProX XT-SQ, 1.5 mm on ProX K-Truss, and 3 mm on ProX XT-SQPL and the Global Truss SQ-4112-275P. We also carry pivot hinges such as the ProX XT-SQPVT for variable-angle corners. Build a run by adding segments end to end and finishing with corners and base plates.
Do I need F34, or will F32 do?
Use F34 when the truss carries load across a span, when anything is over people, or when you want one system that handles both. Use F32 when you are hanging a light row against a wall or across a short gap and want to save weight and money. The practical test is the span and the fixture weight: a 20 ft goalpost with moving heads is F34 work, a 10 ft row of par cans on a backdrop is comfortably F32. When in doubt, F34.
What is a conical connector?
A conical connector is a tapered pin driven into a matching tapered socket in the end of each chord, secured with a spigot and R-clip. The taper pulls the two segments together as it seats, so the joint ends up tight rather than sloppy, and the run behaves closer to one continuous beam. It is why F-series truss can be assembled and struck quickly with nothing but a mallet and clips, and it is the reason segment lengths are interchangeable within a series.
How much can an F34 span carry?
It depends on the span length, the support points and whether the load is spread or concentrated, so there is no one number. For Global Truss F34 we host the engineer-stamped Global Truss F34 load span tables (sheet S0.0, dated 05/27/2026, PDF), exactly as Global Truss published them. That sheet rates Global Truss F34 only. Global Truss's heavy-duty F34P has its own sheet (S1.0, dated 01/22/2020, PDF), and neither sheet covers the ProX or Show Solutions F34 on this page, or a span that mixes brands. We will not quote you a figure over the phone, but call 1-800-700-4542 and we will send you the manufacturer's table for your part number, or tell you plainly if there isn't one, and help you put together a parts list.
Disclaimer: Hollywood DJ provides load information, including the manufacturer load tables we host, for general reference only. It is not intended to replace a qualified engineer or professional rigger, who should plan and approve any truss or staging installation.
How do I order, and how does it ship?
F34 segments ship LTL freight in most cases because of their length, so call for a freight quote and delivery appointment. Only some ProX and Show Solutions segments are stocked at our Los Angeles warehouse at 934 E 11th St, and Global Truss ships directly from Global Truss, so call 1-800-700-4542 to check stock before you plan a will-call pickup or an event date.