3m Width Marquee Extension | Add a Narrow Clear Span Bay

A 3m width marquee extension is a single narrow bay added to the side or end of an existing clear span marquee. It grows covered floor area without replacing the original structure. The 3m module fits sites where a full extra span would be too wide to place.

---

What a 3m width marquee extension adds

The 3m bay is the smallest standard clear span module used by most rental and sales fleets. It adds roughly 3 metres of width along the full host length, so a 10m host gains about 30 sqm of extra floor.

Operators use the extra bay for circulation, a bar servery, a coat area, or an accessible entry. The narrow footprint suits tight gardens, courtyards, and festival back of house zones. It is a practical step above a 3m by 3m pop up without moving to a wider span.

---

How the bay connects to an existing frame

Connection happens at the eave and ridge using the same aluminium profile as the host. The roof purlins span across so the cover stays continuous, which is why modular event marquee systems can grow in 3m steps.

The rule is frame compatibility. A 3m bay must share the host eave height and profile series, or the covers will not meet an aluminium frame marquee structure. Mismatched systems need an adaptor header rather than a direct tie.

---

Siting and ground preparation for a narrow bay

A 3m extension needs level ground and a clear run along the host wall. The new leg line sits on grass, paving, or a thin floating floor, and a survey avoids a bay that meets a step halfway along. Service covers and drains should stay clear of the new leg line.

Anchoring follows the host scheme. On soft ground the legs take stakes, while hard surfaces use weighted plates or bolts, so the unit is reviewed as one structure with any clear span tents for large events.

---

Load and weather limits when you extend

Adding a 3m bay does not change the wind or snow rating of the host frame. The joint must stay within the same certified load tables, and local codes may treat the combined unit as one temporary building. The extension should not create a weak point in the structure.

The limit is set by the host, not the bay. A 3m module adds little extra sail area, so most sites see no change to the permitted wind speed. A 6m x 6m marquee tent for events nearby can share the same anchoring logic if both use one frame series.

---

Frequently Asked Questions

How much does a 3m width marquee extension cost?
A bare 3m bay in standard PVC is the more economical choice, while a glass wall or insulated version costs more. Exact price needs the host details, but most buyers see it as a fraction of a new span. Frame series and cover spec drive the final number.

Do I need planning permission to add a 3m bay?
Permission follows the host rule. If the original needed consent, the extension usually does too, since it counts as the same temporary building. Short event hires may be exempt, but longer installs need a local check. Always confirm before delivery to avoid a stop work order.

How long does delivery and installation take?
Lead time depends on stock and host match. A matching bay from current stock ships within days, while a custom profile takes longer. On site, two fitters typically join a single bay in a few hours once the host is in place, similar to a rapid install modular event marquee.