Roller Barrier Dimensions and Weight

Short answer: a roller barrier unit uses 350 mm or 400 mm diameter rollers at 1.0 m or 1.5 m post spacing, with mounting height 700–900 mm to roller centre. A galvanized run weighs in the range of 35–60 kg per metre depending on configuration. Those three numbers decide everything practical before steel is cut: how the system loads into containers, what the foundation must carry, and how the freight quote compares with the goods value.

This page gives the numbers a freight planner and a foundation designer need, with the reasoning behind each — so container plans and foundation details can be prepared before the shop drawing lands.

Unit dimensions

Parameter	Typical value	What it drives
Roller diameter	350 mm or 400 mm	Unit cost, weight, container count
Roller length per unit	350 mm or 400 mm	Coverage per roller, rows per metre
Post spacing	1.0 m or 1.5 m	Posts and fixings per metre, system weight
Mounting height	700–900 mm to roller centre	Post length, foundation moment
Rows of rollers	Per configuration (single or double row)	Guiding surface height, total weight

Weight per metre — and why the range is wide

A galvanized rolling barrier run weighs 35–60 kg per metre. The spread is configuration-driven, not vagueness:

• Roller diameter: a 400 mm drum carries measurably more material than a 350 mm drum
• Post spacing: 1.0 m spacing adds up to 50% more posts and frames per kilometre than 1.5 m
• Row configuration: double-row systems add a second set of drums and frames
• Coating: hot-dip galvanized is standard; stainless options for coastal sites change the weight basis

For budgeting, the exact figure is confirmed on the shop drawing — but the 35–60 kg/m band is reliable enough for freight and foundation planning at the enquiry stage.

Freight planning: containers and runs

A 20GP container carries roughly 25 tonnes. At the configuration band of 35–60 kg/m, that container holds on the order of 400–700 metres of barrier system including posts and fixings, depending on the roller diameter and post spacing chosen. Two planning rules of thumb:

• Quoting per kilometre? Budget 2–3 containers per kilometre of run, and get the loading plan from the supplier before the freight quote — drum diameter changes the stack height and the container count.
• Mixed containers are normal. Rollers, posts, axles and fixings pack together; the BOQ weights each line so the container plan balances.

The commercial side of this — MOQ, lead time and Incoterms — is covered in the roller barrier price guide.

What the weight means for foundations

Foundation design reads the weight and the mounting height together. A heavier configuration at 900 mm mounting height puts a larger moment on the foundation than a lighter configuration at 700 mm — which is why the foundation detail shipped with every order is configuration-specific, not generic. Ground conditions modify the foundation size, not the principle: the post must hold the roller rows plumb through an impact, and the foundation detail is engineered for that load path. Installation tolerances that keep the system working after the concrete is poured are in the installation guide.

Material options and their weight basis

• Hot-dip galvanized steel — the standard exterior option for highway service; the 35–60 kg/m band assumes it.
• Stainless components — for coastal and high-corrosion sites; quoted per configuration with the weight basis adjusted.

The system’s configuration options and test level are on the rolling barrier page; the mechanism that makes the mounting height a specification (not a preference) is explained in how the barrier works.

For a precise weight and freight estimate, send the run length and configuration — we return the per-metre weight and the container plan with the quotation.

Request dimensions and freight plan

FAQ

What roller diameters are available?

The two standard diameters are 350 mm and 400 mm, with matching drum lengths. The choice is a specification decision — larger drums cost and weigh more per unit and change the container plan — and the diameter is stated explicitly on the quotation and shop drawing.

How much does a roller barrier weigh per metre?

A galvanized run weighs 35–60 kg per metre depending on roller diameter, post spacing and row configuration. The exact figure is confirmed on the shop drawing, but the band is reliable for freight and foundation planning at enquiry stage.

How many metres of roller barrier fit in a container?

A 20GP container carries roughly 25 tonnes, which is on the order of 400–700 metres of system including posts and fixings — the exact count depends on roller diameter and post spacing, which is why the loading plan comes from the supplier with the quotation.

What mounting height is the roller barrier set at?

Mounting height is 700–900 mm to roller centre, set so the rows form one continuous guiding surface. The height is a tolerance item at acceptance, not a site preference — rows at differing heights break the guiding surface the system depends on.