Tubular picket Fencing: 15 Brutal Traps Find out Read More

Tubular picket Fencing is chosen when you want a clean, strong boundary that stays straight, looks professional, and survives daily knocks better than lighter fencing types. The danger is that many tubular panels look identical at first glance, but the wrong combination of rail size, upright thickness, post section, and wall thickness can turn a “solid fence” into a rattling, leaning line that needs constant tightening and early replacement.

What “Tubular picket Fencing” Really Means

A tubular picket fencing panel is a framed system made from steel rails (top/bottom and sometimes mid-rails) with multiple vertical pickets welded or assembled inside the frame. Strength comes from balance: rails resist bending, pickets resist impact and deformation, and posts hold the line and absorb wind and crowd forces. When one part is under-specified—especially posts—the whole fence behaves like a lever, and small movement quickly becomes visible misalignment.

Product Description

POLYMETAL Tubular picket Fencing is engineered as a modular steel barrier system built from square steel rail frames with closely spaced vertical pickets to form a rigid, consistent boundary line. The panel structure is designed to resist bending and maintain alignment under wind loads, foot traffic vibration, and repeated contact, while the picket spacing and picket count create a uniform visual rhythm that supports both security and architectural appeal. To keep the fence looking “new” for years, POLYMETAL uses a multi-layer protection approach that can include hot-dip galvanizing, surface preparation for coating adhesion, a zinc-rich protective layer, and a durable polyester topcoat designed to resist UV fade and daily abrasion. With multiple rail frame sizes, picket tube options, thickness ranges, and heavy-duty post sections with controlled wall thickness, POLYMETAL allows projects to match panel height, width, and structural stiffness to real site conditions instead of buying “one-size-fits-all” panels that loosen and deform over time.

Structure and System Logic: Why “Wobble” Becomes “Rust”

Most tubular picket fences don’t fail in one dramatic moment. The failure chain starts with movement: a slightly light post or thin-wall rail allows micro-flex, micro-flex becomes rattle, rattle damages coating at contact points, and coating breaks invite corrosion. Once corrosion begins around welds and joints, the fence loses both appearance and strength—then the line starts to sag and the “whole street” of panels looks uneven.

Top 15 Traps You Don’t Know About Tubular picket Fencing (Especially #12)

Trap #1: Buying by “height” only and ignoring rail frame size

Tall panels need stronger rails. A 2400 mm panel with a light rail frame is a bending problem waiting to happen.

Trap #2: Choosing picket thickness for looks instead of durability

Thin pickets dent easily, especially in public-facing or high-traffic areas where impacts are normal.

Trap #3: Treating posts as an afterthought

Posts control the fence line. If posts flex, panels will always look misaligned no matter how good the panel is.

Trap #4: Forgetting rail thickness is a real structural upgrade

A thicker rail wall is often the fastest way to reduce long-run bending and vibration.

Trap #5: Assuming “tight spacing” automatically means “strong”

Spacing controls gaps, but strength comes from picket tube size, picket wall thickness, weld quality, and rail stiffness.

Trap #6: Mixing specs on one straight run

If some bays are stiff and others are soft, the soft bays become the first bays to lean and deform, making the whole line look wrong.

Trap #7: Underestimating corner and end bays

Corners multiply force. If your corner posts aren’t upgraded, the fence line slowly migrates and opens gaps.

Trap #8: Not controlling picket count vs panel width

If your panel width changes and the picket count doesn’t match the spacing logic, the fence looks inconsistent and can create weak zones.

Trap #9: Ignoring weld consistency on pickets

Tubular picket Fencing Weak welds don’t always show at delivery. They show after impacts, when a picket starts rattling loose.

Trap #10: Choosing the wrong post section for tall panels

A tall panel paired with a small post becomes a lever. The post twists, the bay leans, and “one bad bay” becomes many.

Trap #11: Skipping coating system alignment with the environment

A wet-storage or coastal-use fence needs stronger corrosion planning than a dry inland boundary, or the finish fails early.

Trap #12: Posts that look “600 mm taller” on paper but aren’t stable in real ground

This is the money-loss trap. Shallow embedment or weak footings turn the post into a hinge. The fence starts wobbling, wobble cracks coatings at joints, cracks invite rust, and rust forces you into panel resets, post replacements, and rework that can cost far more than upgrading posts and fixings at the start.

Trap #13: Not matching repairs to galvanizing practice

Poor touch-ups become the first rust points. The “repaired” area fails first and stains the whole fence line.

Trap #14: Unbalanced build—heavy rails with light pickets (or the reverse)

A Tubular picket Fencing is a system. Overbuilding one part and underbuilding another creates stress points and early deformation.

Trap #15: No straightness QC before packing and shipping

Slight bends multiply visually once installed in a long run. What looked “fine” in a stack becomes ugly on a straight boundary line.

Specifications: POLYMETAL Tubular picket Fencing

All post heights below are set 600 mm higher than fence panel height as requested. Width options are focused on 2400 mm and 2450 mm for clean run planning.

Table 1: Standard Residential Series Tubular picket Fencing

Spec ID	Fence Height (mm)	Fence Width (mm)	Rail Frame	Rail Thickness	Upright	Upright Thickness	Upright No.	Upright Spacing	Post Option	Post Wall	Post Height (mm)
TP-01	1200	2400	40×40	1.60	16×16	0.80	18	100mm	60×60	1.60	1800
TP-02	1200	2450	40×40	2.00	16×16	1.00	17	108mm	65×65	1.60	1800
TP-03	1500	2400	40×40	2.00	25×25	1.00	18	100mm	65×65	2.00	2100
TP-04	1500	2450	45×45	2.00	25×25	1.20	17	108mm	65×65	2.00	2100
TP-05	1800	2400	45×45	2.50	25×25	1.20	18	100mm	75×75	2.00	2400
TP-06	1800	2450	45×45	2.50	30×30	1.20	17	108mm	75×75	2.00	2400
TP-07	2100	2400	50×50	2.50	30×30	1.20	18	100mm	80×80	2.00	2700
TP-08	2100	2450	50×50	3.00	30×30	2.00	17	108mm	80×80	2.50	2700
TP-09	2400	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.00	3000
TP-10	2400	2450	50×50	3.00	25×25	2.00	16	115mm	100×100	2.50	3000

Table 2: Commercial Frontage Series Tubular picket Fencing

Spec ID	Fence Height (mm)	Fence Width (mm)	Rail Frame	Rail Thickness	Upright	Upright Thickness	Upright No.	Upright Spacing	Post Option	Post Wall	Post Height (mm)
TC-01	1200	2400	45×45	2.00	25×25	1.00	18	100mm	65×65	1.60	1800
TC-02	1200	2450	45×45	2.50	25×25	1.20	17	108mm	65×65	2.00	1800
TC-03	1500	2400	45×45	2.50	30×30	1.20	18	100mm	75×75	2.00	2100
TC-04	1500	2450	50×50	2.50	30×30	1.20	17	108mm	75×75	2.00	2100
TC-05	1800	2400	50×50	2.50	30×30	1.20	18	100mm	80×80	2.00	2400
TC-06	1800	2450	50×50	3.00	30×30	2.00	17	108mm	80×80	2.50	2400
TC-07	2100	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.00	2700
TC-08	2100	2450	50×50	3.00	25×25	2.00	16	115mm	100×100	2.50	2700
TC-09	2400	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.50	3000
TC-10	2400	2450	50×50	3.00	30×30	2.00	17	108mm	100×100	2.50	3000

Table 3: Heavy-Duty Security Series (10 Specs)

Spec ID	Fence Height (mm)	Fence Width (mm)	Rail Frame	Rail Thickness	Upright	Upright Thickness	Upright No.	Upright Spacing	Post Option	Post Wall	Post Height (mm)
THD-01	1500	2400	50×50	2.50	30×30	1.20	18	100mm	80×80	2.00	2100
THD-02	1500	2450	50×50	3.00	30×30	2.00	17	108mm	80×80	2.50	2100
THD-03	1800	2400	50×50	3.00	30×30	2.00	18	100mm	80×80	2.50	2400
THD-04	1800	2450	50×50	3.00	25×25	2.00	16	115mm	100×100	2.00	2400
THD-05	2100	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.00	2700
THD-06	2100	2450	50×50	3.00	30×30	2.00	17	108mm	100×100	2.50	2700
THD-07	2400	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.50	3000
THD-08	2400	2450	50×50	3.00	30×30	2.00	17	108mm	100×100	2.50	3000
THD-09	1800	2400	45×45	3.00	30×30	2.00	18	100mm	80×80	2.50	2400
THD-10	1500	2450	45×45	2.50	30×30	1.20	18	100mm	75×75	2.50	2100

Table 4: Architectural Premium Series Tubular picket Fencing

Spec ID	Fence Height (mm)	Fence Width (mm)	Rail Frame	Rail Thickness	Upright	Upright Thickness	Upright No.	Upright Spacing	Post Option	Post Wall	Post Height (mm)
TPR-01	1200	2400	45×45	2.00	16×16	1.00	18	100mm	65×65	1.60	1800
TPR-02	1200	2450	45×45	2.50	25×25	1.20	17	108mm	65×65	2.00	1800
TPR-03	1500	2400	45×45	2.50	25×25	1.20	18	100mm	75×75	2.00	2100
TPR-04	1500	2450	50×50	2.50	30×30	1.20	17	108mm	75×75	2.00	2100
TPR-05	1800	2400	50×50	2.50	30×30	1.20	18	100mm	80×80	2.00	2400
TPR-06	1800	2450	50×50	3.00	30×30	2.00	17	108mm	80×80	2.50	2400
TPR-07	2100	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.00	2700
TPR-08	2100	2450	50×50	3.00	25×25	2.00	16	115mm	100×100	2.50	2700
TPR-09	2400	2400	50×50	3.00	30×30	2.00	18	100mm	100×100	2.50	3000
TPR-10	2400	2450	50×50	3.00	30×30	2.00	17	108mm	100×100	2.50	3000

Table 5: Mixed Spacing Options Series Tubular picket Fencing

Spec ID	Fence Height (mm)	Fence Width (mm)	Rail Frame	Rail Thickness	Upright	Upright Thickness	Upright No.	Upright Spacing	Post Option	Post Wall	Post Height (mm)
TSM-01	1200	2400	40×40	2.00	16×16	1.00	16	115mm	60×60	1.60	1800
TSM-02	1200	2450	45×45	2.00	25×25	1.00	17	108mm	65×65	1.60	1800
TSM-03	1500	2400	45×45	2.00	25×25	1.20	16	115mm	65×65	2.00	2100
TSM-04	1500	2450	45×45	2.50	30×30	1.20	17	108mm	75×75	2.00	2100
TSM-05	1800	2400	45×45	2.50	30×30	1.20	16	115mm	75×75	2.50	2400
TSM-06	1800	2450	50×50	2.50	30×30	2.00	17	108mm	80×80	2.00	2400
TSM-07	2100	2400	50×50	3.00	30×30	2.00	16	115mm	80×80	2.50	2700
TSM-08	2100	2450	50×50	3.00	25×25	2.00	17	108mm	100×100	2.00	2700
TSM-09	2400	2400	50×50	3.00	30×30	2.00	17	108mm	100×100	2.50	3000
TSM-10	2400	2450	50×50	3.00	30×30	2.00	16	115mm	100×100	2.50	3000

Applications

POLYMETAL Tubular picket Fencing is used for residential front fencing, boundary lines, commercial properties, warehouses, schools, parks, car parks, access control zones, and public-facing perimeters where appearance and strength must work together. It is also commonly selected for decorative-security projects where a premium look is required without sacrificing rigidity.

Benefits Tubular picket Fencing

POLYMETAL Tubular picket Fencing delivers a clean architectural finish with strong structural stability when rail frame size, rail thickness, picket selection, and post section are correctly matched to height. Consistent picket spacing supports a premium visual rhythm, while the coating system options help reduce early corrosion, rust bleed, and repaint cycles. The result is a fence line that stays straighter, looks better for longer, and costs less to maintain over the life of the site.

Manufacture and Coating System

Typical production flow includes cutting, punching or slotting, welding/assembly, surface preparation, coating, and packing. For long-term corrosion protection and appearance, a multi-layer system can be applied: hot-dip galvanizing for rust resistance, chemical pretreatment to promote adhesion, a zinc-rich protective layer for impact and corrosion resistance, and a polyester colour topcoat to improve UV stability and surface durability.

Packing Tubular picket Fencing

Panels are typically stacked in protective bundles using separators to reduce rubbing at corners and contact points, then strapped onto steel pallets for forklift handling. Posts are bundled separately and labeled by section size and wall thickness to prevent mixing on site. Fasteners and brackets are bagged and boxed for count control, so installers don’t “improvise” missing hardware, which is one of the fastest ways to create movement and future rust—something buyers often underestimate when reviewing the cost of garrison fence.

Standard and Quality Control Tubular picket Fencing

Quality control focuses on rail and picket tube size accuracy, wall thickness consistency, weld integrity, panel straightness, hole/punch alignment (if used), coating adhesion, and finish uniformity. Staged inspections after fabrication, after coating, and before packing help prevent the most expensive problem: defective bays arriving onsite and forcing rework that delays the whole project.

FAQs Tubular picket Fencing

Which rail frame should I choose: 40×40, 45×45, or 50×50?

40×40 is commonly used for lighter residential runs, 45×45 is a strong mid-range choice for frontage builds, and 50×50 is preferred for taller or higher-abuse applications where stiffness and long-run straightness matter most.

What picket spacing should I use?

18 pickets with 100mm spacing is the common “clean rhythm” layout. If you prefer a more open look, 17 pickets (108mm) or 16 pickets (115mm) are used—just keep spacing consistent across the full run so the fence doesn’t look patchy.

Why must posts be 600mm taller than the panel?

The extra 600mm is for embedment and footing stability. If that embedment isn’t real and stable, the post becomes a hinge and the fence starts wobbling, which leads directly to coating damage and early rust.

What finish lasts the longest outdoors?

Hot-dip galvanizing provides strong baseline corrosion protection, and powder coating over galvanized steel improves appearance and UV stability. The best choice depends on site exposure, handling, and the look you want to maintain.

What is the fastest way to avoid long-term maintenance?

Start with the correct post section and wall thickness for your fence height, lock straight-line alignment during installation, and choose a coating system that matches your environment so movement and corrosion don’t get a head start—especially when ordering steel security fence for sale as a complete system with matched posts, rails, and coatings.