Cantilever Scaffold Cost

Cantilever scaffold cost in 2026 typically adds £120 to £210 per week for the cantilevered section on top of the base scaffold, with complete jobs running £750 to £2,500. All figures exclude VAT.

A cantilever scaffold projects outward from a supported base with no standards reaching the ground beneath the projecting part. It exists for one reason: something below cannot be built on.

Overhang scaffold price at a glance

Application	Typical 2026 cost	Notes
Cantilevered section, weekly rate	£120 to £210 per week	On top of the base scaffold
Small domestic cantilever, complete	£750 to £1,350	Over a porch or entrance
Cantilever over a conservatory	£900 to £2,000	Often a bridged design instead
Shopfront cantilever over a pavement	£1,500 to £3,500	Plus licence and public protection
Cantilever needing a bespoke design	add £150 to £400	Design fee

Trade sources price a cantilever section at £120 to £210 per week, which is consistent with the complete job figures above once a base scaffold and a normal hire period are included.

When a cantilever is the answer

You need one when the ground beneath the working position is unavailable:

• a pavement or road that cannot be occupied at ground level
• a conservatory, porch, flat roof or canopy in the way
• a railway, watercourse or protected planting below
• a basement lightwell or vaulted pavement
• a shopfront that has to keep trading underneath

In many domestic cases a bridged scaffold is used instead, spanning the obstruction on beams with standards either side. That is usually cheaper, and the detail is in Bridging Over a Conservatory.

A true cantilever is the option when there is no ground on one side to land a support at all.

Why it costs more

Counterweights or tie-downs. The projecting section has to be balanced. That means kentledge, tie-downs into the structure, or both, and the counterweight itself is heavy material to deliver and place.

Extended base. The supported section must be substantial enough to carry the overturning moment, which frequently means more standards and more ties than the elevation would otherwise need.

Design is effectively mandatory. A cantilever falls outside the standard configurations covered by TG20:21, so it needs calculations from a qualified engineer. Budget £150 to £400 on a domestic job and more commercially.

Tighter inspection. Cantilevered structures are more sensitive to alteration and impact, so inspection discipline matters more.

What the design has to establish

Ask the scaffolder what the design covers. A competent answer will include:

1. The projection length and the load it will carry
2. The counterbalance arrangement and where the tie-downs go
3. Tie pattern into the building for the supporting section
4. Load limits on the cantilevered deck, and whether materials may be stored there
5. Wind loading, particularly if the structure is sheeted

The load limit matters practically. A cantilevered deck rated for people and hand tools is not rated for a pallet of tiles, and trades need telling.

Domestic alternatives worth pricing

Before accepting a cantilever, check whether one of these works:

Alternative	When it applies	Typical saving
Bridged scaffold on beams	Support available both sides of the obstruction	£200 to £600
Working from the other elevation	Job allows access from a different side	full cost of the cantilever
Temporary removal of the obstruction	Lightweight canopy or small porch	varies
Mobile platform from the ground	Low level, firm ground	£400 to £900

Hire and programme

Because a cantilever is usually part of a larger scaffold, it inherits that scaffold’s hire period. Where the cantilever is quoted separately at a weekly rate, the arithmetic matters: £180 per week over a twelve week programme is £2,160, which may exceed the base scaffold on a small job.

Ask whether the cantilever section can be struck early once the work above it is complete. On a job where the overhanging access is needed for two weeks of a twelve week programme, that single question is worth several hundred pounds. The general principle is covered in Scaffolding Hire Periods and What Overruns Really Cost.

Getting it inspected properly

Cantilevered structures deserve more inspection attention than a standard scaffold, for one specific reason: the counterbalance can be disturbed without anyone noticing.

Things that quietly compromise a cantilever:

• counterweights moved or borrowed for another part of the site
• tie-downs slackened during other works
• materials stacked on the cantilevered deck beyond its rating
• the supporting section altered by another trade

The statutory position is unchanged, meaning inspection before first use, every seven days, and after anything affecting stability. In practice, ask for the counterweight arrangement to be checked specifically at each inspection and recorded. The general duty is set out in Scaffold Inspections: The Seven-Day Rule and Your Rights.

What affects your price

The variables a scaffolder actually prices from, in order of impact:

1. Number of elevations. The largest single lever on any quote.
2. Frontage length and height. Together these set your face area in square metres.
3. Number of lifts. Each 2 metre lift adds boards, ties and labour. Above 9 metres the rate rises again.
4. Hire duration. Four to six weeks is normally included, then 5 to 10% of the quote per extra week.
5. Access difficulty. Narrow passages, soft ground, long carries and obstructions all add labour hours.
6. Region. Up to 40% between the cheapest and dearest parts of the UK.
7. Extras. Permits, netting, bridging, chimney lifts and temporary roofs.

Next steps

Get a realistic range for your property by entering your frontage, height, coverage and hire period. Every cost component is itemised, which is what lets you see why one quote is dearer than another.