Excavation Edge Guardrail

One post line, two panel types

The two general types share a 50 × 50 mm square-tube post, so a site can run a single post line and change the panel along it. The mesh-panel type wraps 50 × 50 mm mesh in a 20 × 30 mm or 30 × 30 mm square-tube outer frame: light enough for one person to lift into position, and still closed enough to hold back materials and debris. The vertical-tube type uses a 30 × 30 mm outer frame with vertical tube infill, which gives a cleaner face where the barrier stands in public view.

The family also carries a heavier variant for pit edges that take site traffic or need a braced, movable line: an 8 cm square-tube post with a bolted base flange, carrying single panels of 1.1 m × 1.7 m welded from 2 cm × 4 cm square tube. Its figures are the second group in the table below, and they are not interchangeable with the general range above them.

This is edge protection, which is a different job from a boundary. A boundary line such as a zinc-steel perimeter railing separates a site from what is outside it; this guardrail keeps people away from a drop that is inside the site. Where a crowd rather than a pit edge has to be held, the crowd-control barrier is the product for that.

Excavation edge guardrail — both variants

The figures are listed per variant because the two are separate builds. Variant A is the general mesh-panel and vertical-tube range; variant B is the bolted, flanged guardrail with its own panel, post and flange sizes.

What the two panel types and the warning finish give you

• One post for both panel types. A 50 × 50 mm square-tube post takes the mesh panel or the vertical-tube panel on the same line.
• A light mesh panel. A 20 × 30 mm or 30 × 30 mm outer frame around 50 × 50 mm mesh openings, liftable by one person.
• A cleaner face on request. The vertical-tube type in a 30 × 30 mm frame, for edges in public view.
• A heavier bolted variant. An 8 cm square-tube post on an 8 mm × 15 cm × 15 cm flange, fixed with Φ14 expansion bolts.
• Movable or fixed. Both versions of the heavier variant share the same panel and post dimensions; the movable type adds a 20 cm triangular brace.
• A warning finish. Yellow-black, or yellow-and-black / red-and-white alternating as offered on the heavier variant, applied to the specified panels and posts.
• A published load capacity. About 600 kg for the heavier variant, stated by the manufacturer.

The safety plan sets the layout, not a default

Panel length, panel height, post spacing and the fixing method are confirmed against the site drawing. More important, the guardrail positions, toe boards and access openings for a working excavation are set by the project's own safety plan — we supply to your drawing rather than to a default layout, because an edge that is protected in the wrong place is not protected.

The cited site rule travels with both variants: excavation edges of pits deeper than 2 m must be fitted with protective railings, and stairway width should not be less than 1 m. That rule belongs to the site and its authority, and it is quoted here as a site rule rather than as a claim about this product. What the product does is give the drawing something to specify: a panel type, a post, a fixing and a warning finish.

Panels and posts, bundled for the site

Panels and posts are bundled and palletised for container loading, with the base flanges, bolts and braces bagged against the drawing reference so that a run can be assembled without sorting. The exact packing method is confirmed per specification with the loading plan.

Four questions, answered from this page

What are the two panel types?

The mesh-panel type uses a 20 × 30 mm or 30 × 30 mm square-tube outer frame with 50 × 50 mm mesh openings. The vertical-tube type uses a 30 × 30 mm outer frame with vertical tube infill. Both take the same 50 × 50 mm square-tube post.

What is the heavier variant built from?

Panels of 1.1 m × 1.7 m welded from 2 cm × 4 cm square tube in 50 × 50 mm mesh with 3.5 mm wire, on an 8 cm square-tube post 1.3 m high with an 8 mm × 15 cm × 15 cm base flange and Φ14 expansion bolts, at 2 m post spacing.

Is there a movable version?

Yes. Both a movable and a fixed version are supplied and share the same panel and post dimensions; the movable type adds a 20 cm triangular brace at its two fixing points.

What colours are available?

The warning finish is yellow-black, applied to the specified panels and posts. On the heavier variant the panel is painted yellow and the post red by spray painting, with yellow-and-black alternating, red-and-white alternating, or made to order.

Who decides where the guardrail goes?

The project's own safety plan. Positions, toe boards and access openings are set by it, and panel length, height, post spacing and fixing are confirmed against the site drawing.