Square tubes
// Square tubes for projects requiring clean edges and robust solutions.
Filter products
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Pipe connector
- Ductile iron pipe fittings | T-pieces
- Ductile iron pipe fittings | Elbows
- Ductile iron pipe fittings | Cross pieces
- Ductile iron pipe connectors | Wall brackets / base plates
- Ductile iron pipe connectors | Handrails
- Ductile iron pipe coupler | Adjustable angle
- Ductile iron pipe couplings | Clamping rings / Flanges
- Ductile iron pipe couplings | Elbows
- Ductile iron pipe couplings | Extension pieces
- Ductile iron pipe couplings | Variable diameter
- Ductile iron pipe couplings | Accessories
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Stainless steel components
- Plate holder
- Glass and panel holders
- Stainless steel glass holder
- Glass balustrades
- Glass point holder
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Stainless steel balustrades
- Cover rosettes | Post covers
- Anchor plates
- Spacers
- Balustrade posts | Post fixings
- Handrail bracket
- Handrail supports
- Mounting plate
- Support pins for handrail brackets
- Carrying handle
- Cross-bar bracket
- Pipe plug
- Post caps
- Klöpper-formed stainless steel bottoms
- Ronden
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Pipe bends
- 90-degree elbow (welded fittings, Type 3 DIN)
- 45-degree elbow (welded fittings, Type 3 DIN)
- 180-degree elbow (welded fittings, Type 3 DIN)
- 90-degree elbow (welded fittings, Type 2 DIN)
- 90-degree elbow (welded fittings, Type 5)
- Pipe bends, special-angle fittings, welded fittings
- 90-degree elbow welded fittings
- T-piece welded fittings
- Connector, welded fittings
- Cross-piece welded fittings
- Connectors
- Decorative fittings
- Wall anchors | Floor anchors
- Clamping profile
- Glass and door systems
- LED handrail
- Balls | Cones | Cubes
- Stainless steel tubes | Bar stock
- Grooved pipes
- Push-fit fittings / End caps for grooved pipes
- Home | Garden
- Door construction | Door locks | Door handles
- Stainless steel cables | Wire rope clamps | Accessories
- Marine | Boat supplies
- Accessories | Screws | Adhesives
- Black Lane – Powder-coated stainless steel parts
- Sliding glass door
- BRENK-fix® Base Holder
- RAIL FIX Installation Guide
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Wrought iron
- Caps
- Anchor plates
- Weld-on strips
- Weld-on brackets
- Baroque programme
- Letters
- Drive-in plugs
- Raw steel Klöpper discs
- Handrail brackets + accessories
- House numbers
- Balls
- Plastic handrails
- Rings | Crosses
- Ronden
- Locks | Door handles | Other accessories
- Bar stock
- Pipe bends
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Door hinges
- Gate hinge with welded sleeve
- Door hinge with slotted plate
- Door hinge with a long thread
- Door hinges, adjustable in 4 directions
- Self-closing gate hinges
- Threaded sleeves for gate hinges – spares & accessories
- with a weld-on plate
- Lifting gate fittings
- Adjustable wall plates for gate hinges
- Brass washers for hot-dip galvanised gate hinges
- Eye bolts, sold individually, for gate hinges
- for setting in concrete
- with an angled tab
- with a wall plate
- Fence posts
- Fence rails
- Decorative mouldings
- Enamel and paints
- Blacksmithing Basic Line
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Grating steps
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Grating
- Light well grating – Building Standard grating
- Grating fixing
- Grating, channel grating, suitable for vehicle traffic
- Industrial grating
- Press-welded grating
- Press platform grates with a step edge
- Safety toe cap
- Door frames / Frames
- Boat jetty grating
- Made-to-measure grating
- SEPGRATE designer covers
- Powder coating for grating
- GRP
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Marine | Boat accessories
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Sliding gate fittings
- Sliding gate fitting 0 | Gate weight per leaf up to 90 kg
- Sliding gate fitting 1 | Gate weight per leaf up to 200 kg
- Sliding gate fitting 2 | Gate weight per leaf up to 400 kg
- Sliding gate fitting 3 | Gate weight per leaf up to 600 kg
- Sliding gate fitting 4 | Gate weight per leaf up to 1,200 kg
- Sliding gate fitting 5 | Gate weight per leaf up to 2,000 kg
- Full range
- All sizes fit 1 to 5
- Cast iron rollers for sliding gates
- Cantilever sliding gates
- Ground-mounted sliding gates
- Gate operators & control systems
- Sliding gate accessories
- Locks & Bolts
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Sealing plugs and protective caps
- Aluminium fences and aluminium gates
- New Products
Filter products
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
Square steel tubes are characterised by their high dimensional stability, clean lines and robust structure. They are a key component in the long products sector when it comes to load-bearing metal structures – for example, in frames, supporting structures, door frames, columns or railings.
The square geometry ensures that square tubes can be assembled to exact dimensions with particular ease. The symmetrical cross-section results in uniform force distribution, which is particularly advantageous in structurally critical constructions . Furthermore, square tubes are excellent for welding, joining and combining with other components .
Typical applications include:
- load-bearing frame structures in metal construction
- railing and fencing components
- Industrial and machine frames
- structures with high dimensional accuracy requirements
At FeNau, you’ll find a selection of square tubes in various dimensions and wall thicknesses – perfect for projects that rely on stability, precise workmanship and a clear structural form.