• Orange box with a price tag icon on a white background

    Bulk Pricing

    Save more on larger orders

  • Icon of a truck with a clock, symbolizing time-sensitive delivery.

    Next Day Delivery

    Fast dispatch from UK stock

  • Google Review Symbol

    Trusted by 1000+ customers

  • Black outline of a shopping basket with a check mark on a white background

    No Minimum Order

    Order exactly what you need

Melba Swintex  |  SKU: 015164

Road Narrows Left with Single File Traffic Supplementary Provision 750mm Q-Sign 517

£37.49 Ex. VAT
£44.99 Inc. VAT
Why buy from us
  • Pay in 30 days with a Trade Account. No fees.
  • Trade and bulk pricing available on request
  • UK stock, dispatched fast

Seen it cheaper elsewhere?

Call the team and we'll beat any genuine quote.

0161 706 0479


In Stock Ready to go
Quote in 3 hours No account needed
  • Made in the UK
  • Pay in 30 days with Klarna. No fee. Learn more
  • Next Day Delivery Available
Why it works

One stand, hazard and instruction both covered

Warning and instruction together

The triangle shows the hazard and the plate spells out "single file traffic", so drivers do not need a second sign to explain it.

Compliant for public roads

Meets BS 8442:2015, Chapter 8 of the Traffic Signs Manual, the Red Book 2013 and TSRGD when deployed correctly.

Still a one-person lift

At 8.8kg the combined triangle and plate is heavier than the triangle alone, but still light enough to carry, stand and pack away solo.

Nothing to rust or steal

Fully recycled, metal-free polypropylene that will not rust and has no scrap value.

Stands up to the weather

The non-conductive frame handles rain and knocks, then folds flat to 60mm for transport.
Overview

Road Narrows Left with Single File Traffic 750mm Q-Sign 517 - Overview

A 750mm triangular 'Road Narrows Left' warning combined with a 'Single file traffic' supplementary plate, both on the Melba Swintex Q-Sign folding A-frame. Fully recycled polypropylene, free-standing on its built-in stand, conforming to BS 8442:2015 and Chapter 8 - the hazard warning and the driving instruction on one unit.
750mm
Triangle face
8.8kg
Weight
1200mm
Total height
30units
Per pallet
Dimensions
Total height1200mm
Total width870mm
Depth (folded)60mm
Depth (set up)750mm
Sign face750 x 750mm triangle plus supplementary plate
Weight8.8kg
Details
Sign faceRoad Narrows Left (517) with Single File Traffic plate
MaterialFully recycled polypropylene
Frame colourBlack
StandardsBS 8442:2015, Chapter 8, The Red Book 2013, TSRGD
BallastSandbags or sign ballast weights (sold separately)
Units per pallet30 (single pallet)
Made inUnited Kingdom

Frequently asked questions

What's different about this sign compared to a plain Road Narrows Left triangle?

It has a 'Single file traffic' plate fixed below the triangle, so drivers get the hazard warning and the instruction to merge into one lane on the same stand.

How much heavier is it than the triangle-only version?

8.8kg against 6.9kg for the triangle alone - the extra plate adds a little weight but it is still a comfortable one-person lift.

What standards does it meet?

BS 8442:2015, Chapter 8 of the Traffic Signs Manual, the Red Book 2013 and TSRGD when set up to the code of practice.

How big is the whole unit?

Set up it stands 1200mm high and 870mm wide, with the 750 x 750mm triangle and supplementary plate together on the A-frame. Folded it is 60mm deep.

Does it need ballast?

In exposed spots, yes - the range is wind-tested with the appropriate ballast weightings, so add ready-filled sandbags or a sign ballast weight.

Can it stay out overnight?

Yes, it is fully recycled polypropylene with no metal parts, so it will not rust and has no scrap value.

Can I get a different combination of triangle and plate?

Yes, bespoke vinyl sign faces and plates are available on the same frame - email sales@streetsolutionsuk.com with what you need.

Get a quote in 3 hours

Our teams are available on 0161 706 0479

Payment & data security