Why this picket fence needs a different specification checklist

When you evaluate a China galvanized steel fence panel manufacturer, start with how the product is actually specified. The Galvanized Steel Fence With Flat Top from Anping County Shengxin Metal Products Co., Ltd is a steel picket fence, also called an ornamental steel fence. It is built from square pickets and rails, not woven or welded wire. That means mesh opening and wire diameter are not the right measurements. The equivalent decisions are:

• Picket spacing (centre to centre) instead of mesh opening
• Picket section and wall thickness instead of wire diameter
• Rail and post sections and thicknesses for the panel frame and supports

If your tender asks for mesh opening or wire gauge, rewrite those requirements in these terms before you request a quotation. The sizes below are the published options. Each list ends with "etc.", so confirm any other size directly with the company.

1. Panel size

Published galvanized steel fence panel sizes:

All the listed panels are 2.4 m (8 ft) wide, so the choice is mainly about height. Base it on the perimeter's purpose and on any height limits set by local rules in your market.

2. Picket spacing (the "opening" decision)

Published picket spacing (C/C): 150 mm, 120 mm, 100 mm, 90 mm, etc.

These values are measured centre to centre. The clear gap between two pickets is about the spacing minus the picket width. For example, 100 mm C/C with 20 x 20 mm pickets leaves a gap of about 80 mm. Closer spacing gives smaller gaps and uses more pickets per panel. Wider spacing gives a more open look.

The source material lists swimming pool enclosures and athletic field enclosures among the applications. If your project falls under a pool barrier or similar safety code, check the maximum gap that code allows. Then choose the spacing and picket size together so the gap meets that limit. The source material does not state compliance with any specific code.

3. Picket size and thickness (the "wire diameter" decision)

• Picket size: 19 x 19 mm, 20 x 20 mm, 25 x 25 mm, etc.
• Picket thickness: 0.8 mm, 1.0 mm, 1.2 mm, etc.

Specify the picket section and the wall thickness together. A larger section with a thicker wall uses more steel per picket. Write both numbers into your purchase specification rather than a single "gauge" figure.

4. Rail and post sizes

Rail thickness is noted as usually less than 1.5 mm. If your specification needs heavier rails, confirm whether that is possible before you finalise drawings. Choose post sections with your panel height and site conditions in mind, and confirm the final sizes with the company.

5. Material, surface treatment and colour

• Material: Q195 or Q235 steel
• Surface treatment: hot dipped galvanized and powder coated
• Popular colours: RAL 9005 Black, RAL 6005 Dark Green, blue and white, etc.

The source describes the product as corrosion-resistant and lists custom size and colour as options. It also mentions free CAD design. The material does not give coating weights, salt-spray test results or certifications. If your project needs them, ask for documented values. Do not assume them.

6. Matching the fence to the application

The published material lists these uses for this steel fence range:

• Parks and recreation areas
• Building perimeter security
• Parking lot borders
• Law enforcement security enclosures
• Equipment and storage yard fences
• Roadside and pathway boundary perimeters
• Athletic field enclosures
• Swimming pool enclosures

A flat top gives a clean, level top line. It suits boundaries, parks, pathways and commercial frontages where you want a neat look.

Flat Top or Bent Top?

Both versions share the same published panel, picket, rail and post options, material and finish. The published top styles are flat top, spearhead top and bent top. The Galvanized Steel Fence With Bent Top is the same picket fence range with a different top. Choose it if your project calls for that profile instead of a level top line. The source does not compare the security performance of the two tops, so base this choice on your design and site requirements, not on assumed performance claims.

When this recommendation does not apply

• Your specification requires welded or woven wire mesh with a defined mesh opening and wire diameter. That calls for a mesh fence product, not this picket fence.
• You need a panel size, thickness or rail weight outside the published options and have not yet confirmed it with the company.
• Your project needs certified coating weights, test reports or code compliance that the source material does not document.

Buyer checklist before requesting a quote

1. Panel height and width (for example 1.8 x 2.4 m / 6 x 8 ft)
2. Picket spacing C/C, picket section and picket wall thickness
3. Rail section and thickness; post section and thickness
4. Steel grade (Q195 or Q235)
5. Top style (flat, spearhead or bent)
6. Colour (RAL code)
7. Application and any local code limits on height or gaps
8. Quantity, destination and packaging needs

The source material does not give prices, lead times or certifications. Confirm these and the final specifications directly with Anping County Shengxin Metal Products Co., Ltd at www.metalwire-fence.com.