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303 bar: what it costs in the UK

6 sizes of round and hex bar, per metre, ex VAT, as listed by 5 UK online stockists. Updated weekly; last read 5 Oct 2026. Headline figures and the long price history are for Ø25 mm round bar, the size we have tracked since Oct 2021. Properties and machinability: 303 material page.

£36.96per metre, lowest this week, Ø25 mm round
AMB Steels (Sheffield) · £9.53/kg
6sizes tracked
round and hex bar, 5 stockists
£6.82/kglowest per kg this week, any size
Ø50 mm round at Aluminium Warehouse
1.7×spread between the 5 stockists, Ø25 mm round
£36.96 to £63.76
+67%since Oct 2021 at Rapid Metals, Ø25 mm round
£33.00 → £55.10
£55.10peak, Jul 2024 at Rapid Metals
low £33.00, Oct 2021

Last read 5 Oct 2026: 118 of 119 stockist prices read (1 couldn't be read with certainty and is left out). Next reading due 12 Oct 2026. Follow price changes (Atom feed)

Cheapest per size, this week

SizeCheapest £/m£/kgAluminium WarehouseAMB SteelsRapid Metals1st Choice MetalsKI MetalsHistory
Ø16 mm round£18.60
Aluminium Warehouse		£11.71£18.60£22.75£22.60£18.60£26.06History for Ø16 mm round
Ø20 mm round£23.71
AMB Steels		£9.55£25.73£23.71£36.30£26.87£40.32History for Ø20 mm round
Ø25 mm round£36.96
AMB Steels		£9.53£38.70£36.96£55.10£42.03£63.76History for Ø25 mm round
Ø40 mm round£69.58
Aluminium Warehouse		£7.01£69.58£96.00£113.00——History for Ø40 mm round
Ø50 mm round£105.84
Aluminium Warehouse		£6.82£105.84£148.80———History for Ø50 mm round
25.4 mm hex (A/F)£44.00£9.97£44.00————History for 25.4 mm hex (A/F)

Per metre, ex VAT, as listed on 5 Oct 2026. The cheapest this week is in bold; each price opens that stockist's product page for that exact size. "Not read" means the stockist lists the size but the price couldn't be read with certainty this week; "—" means we don't track it there. £/kg is the cheapest £/m ÷ the weight of 1 m of that section (cross-section × 1 m × 7.9 g/cm³, the density on our 303 page).

Showing Ø25 mm round. The charts, the calculator and the readings below follow the size you pick.

This week, stockist by stockist Ø25 mm round

Price history Ø25 mm round

Lines join the readings we actually took; the price between two readings wasn't observed. Sizes other than Ø25 mm round start at their first weekly reading. Hover the chart for each stockist's price on a date, and click to pin it and open the sources. Arrow keys step through readings.

In this range

What would my bar cost? Ø25 mm round

Stockist£/m this weekTotal barCost ex VAT
AMB Steels (Sheffield)
Ø25 mm round		£36.96
Aluminium Warehouse
Ø25 mm round		£38.70
1st Choice Metals
Ø25 mm round		£42.03
Rapid Metals
Ø25 mm round		£55.10
KI Metals (Birmingham)
Ø25 mm round		£63.76

Per-metre price × total length, for the size picked above. Cutting charges, minimum lengths, saw kerf and delivery vary by stockist and aren't included. Use it to compare, not as a quote.

Every reading

303 bar, UK retail price per metre ex VAT. dalloways.com/material-prices/303, printed from readings to 5 Oct 2026.

66 readings
DateSizeStockist£ per metre£ per kgSource
5 Oct 2026Ø16 mm roundAluminium Warehouse£18.60£11.71product page
5 Oct 2026Ø16 mm roundAMB Steels (Sheffield)£22.75£14.32product page
5 Oct 2026Ø16 mm round1st Choice Metals£18.60£11.71product page
5 Oct 2026Ø16 mm roundKI Metals (Birmingham)£26.06£16.41product page
5 Oct 2026Ø16 mm roundRapid Metals£22.60£14.23product page
5 Oct 2026Ø20 mm roundAluminium Warehouse£25.73£10.37product page
5 Oct 2026Ø20 mm roundAMB Steels (Sheffield)£23.71£9.55product page
5 Oct 2026Ø20 mm round1st Choice Metals£26.87£10.83product page
5 Oct 2026Ø20 mm roundKI Metals (Birmingham)£40.32£16.25product page
5 Oct 2026Ø20 mm roundRapid Metals£36.30£14.63product page
5 Oct 2026Ø25 mm roundAluminium Warehouse£38.70£9.98product page
5 Oct 2026Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53product page
5 Oct 2026Ø25 mm round1st Choice Metals£42.03£10.84product page
5 Oct 2026Ø25 mm roundKI Metals (Birmingham)£63.76£16.44product page
5 Oct 2026Ø25 mm roundRapid Metals£55.10£14.21product page
5 Oct 2026Ø40 mm roundAluminium Warehouse£69.58£7.01product page
5 Oct 2026Ø40 mm roundAMB Steels (Sheffield)£96.00£9.67product page
5 Oct 2026Ø40 mm roundRapid Metals£113.00£11.38product page
5 Oct 2026Ø50 mm roundAluminium Warehouse£105.84£6.82product page
5 Oct 2026Ø50 mm roundAMB Steels (Sheffield)£148.80£9.59product page
5 Oct 202625.4 mm hex (A/F)Aluminium Warehouse£44.00£9.97product page
3 Oct 2026Ø16 mm roundAluminium Warehouse£18.60£11.71product page
3 Oct 2026Ø16 mm roundAMB Steels (Sheffield)£22.75£14.32product page
3 Oct 2026Ø16 mm round1st Choice Metals£18.60£11.71product page
3 Oct 2026Ø16 mm roundKI Metals (Birmingham)£26.06£16.41product page
3 Oct 2026Ø16 mm roundRapid Metals£22.60£14.23product page
3 Oct 2026Ø20 mm roundAluminium Warehouse£25.73£10.37product page
3 Oct 2026Ø20 mm roundAMB Steels (Sheffield)£23.71£9.55product page
3 Oct 2026Ø20 mm round1st Choice Metals£26.87£10.83product page
3 Oct 2026Ø20 mm roundKI Metals (Birmingham)£40.32£16.25product page
3 Oct 2026Ø20 mm roundRapid Metals£36.30£14.63product page
3 Oct 2026Ø25 mm roundAluminium Warehouse£38.70£9.98product page
3 Oct 2026Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53product page
3 Oct 2026Ø25 mm round1st Choice Metals£42.03£10.84product page
3 Oct 2026Ø25 mm roundKI Metals (Birmingham)£63.76£16.44product page
3 Oct 2026Ø25 mm roundRapid Metals£55.10£14.21product page
3 Oct 2026Ø40 mm roundAluminium Warehouse£69.58£7.01product page
3 Oct 2026Ø40 mm roundAMB Steels (Sheffield)£96.00£9.67product page
3 Oct 2026Ø40 mm roundRapid Metals£113.00£11.38product page
3 Oct 2026Ø50 mm roundAluminium Warehouse£105.84£6.82product page
3 Oct 2026Ø50 mm roundAMB Steels (Sheffield)£148.80£9.59product page
3 Oct 202625.4 mm hex (A/F)Aluminium Warehouse£44.00£9.97product page
28 Sep 2026Ø25 mm roundAluminium Warehouse£38.70£9.98product page
28 Sep 2026Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53product page
28 Sep 2026Ø25 mm roundRapid Metals£55.10£14.21product page
26 Sep 2026Ø25 mm roundAluminium Warehouse£38.70£9.98product page
26 Sep 2026Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53product page
26 Sep 2026Ø25 mm roundRapid Metals£55.10£14.21product page
8 Jun 2026Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
11 Feb 2026Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
8 Nov 2025Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
14 Sep 2025Ø25 mm roundAluminium Warehouse£38.70£9.98archived snapshot
20 Jul 2025Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
22 Apr 2025Ø25 mm roundAluminium Warehouse£38.70£9.98archived snapshot
21 Mar 2025Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
15 Feb 2025Ø25 mm roundAluminium Warehouse£38.70£9.98archived snapshot
2 Dec 2024Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
16 Oct 2024Ø25 mm roundAluminium Warehouse£38.70£9.98archived snapshot
14 Sep 2024Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
23 Jul 2024Ø25 mm roundRapid Metals£55.10£14.21archived snapshot
23 May 2024Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
18 May 2024Ø25 mm roundAluminium Warehouse£28.81£7.43archived snapshot
8 Dec 2023Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
30 Jun 2022Ø25 mm roundAMB Steels (Sheffield)£36.96£9.53archived snapshot
22 May 2022Ø25 mm roundRapid Metals£48.50£12.51archived snapshot
21 Oct 2021Ø25 mm roundRapid Metals£33.00£8.51archived snapshot

£ per kg: 1 m of each size weighs its cross-section × 1 m × 7.9 g/cm³, using the density published on our 303 page. For Ø25 mm round that is π × (12.5 mm)² × 1 m × 7.9 g/cm³ = 3.878 kg.

What these numbers are. Online list prices for metal and plastic bar — round, flat, square and hex, in the sizes shown — per metre, ex VAT and excluding delivery, as shown on each stockist's own website on the date given. We read them automatically each week. History before September 2026 is Ø25 mm round bar only: it comes from dated Internet Archive snapshots of the same product pages, and an archived price is used only if that page also shows it is ex VAT. Other sizes start at their first weekly reading. Shops marked retail sell mainly to the public and are usually dearer than a stockholder for the same bar. These are not quotations, and an account or trade price will usually be lower. Each figure links to the page it was read from. A reading we couldn't take with certainty is left out, never estimated.

Similar grades

304Ø25 mm from £36.96/m this week · +52% since Oct 2021 · 10 sizes316 / 316LØ25 mm from £37.24/m this week · +20% since Mar 2021 · 10 sizes

Questions

How much does 303 bar cost in the UK?

As read on 5 Oct 2026, Ø25 mm 303 round bar is listed from £36.96 per metre ex VAT (AMB Steels (Sheffield)), up to £63.76 per metre (KI Metals (Birmingham)). We track 6 sizes of 303 (round and hex bar); the cheapest price for each is in the table above. These are online list prices excluding delivery; an account price will usually be lower.

Which 303 sizes are tracked, and what do they cost?

Ø16 mm round from £18.60/m (Aluminium Warehouse); Ø20 mm round from £23.71/m (AMB Steels); Ø25 mm round from £36.96/m (AMB Steels); Ø40 mm round from £69.58/m (Aluminium Warehouse); Ø50 mm round from £105.84/m (Aluminium Warehouse); 25.4 mm hex (A/F) from £44.00/m (Aluminium Warehouse), as read on 5 Oct 2026, per metre ex VAT.

Has the price of 303 gone up?

At Rapid Metals, the stockist with the longest record for this grade, Ø25 mm 303 was £33.00 per metre in Oct 2021 and is £55.10 now (+67%).

Why do stockists charge such different prices for the same 303 bar?

This week the dearest Ø25 mm listing is 1.7× the cheapest. Online stockists price in cutting, handling, stock-holding and the small-order market they serve, and finish and certification can differ between listings. Shops marked retail sell mainly to the public. Delivery charges differ too and aren't included here. Compare the total delivered cost for your order, not the per-metre figure alone.

What is 303 per kilogram?

1 m of Ø25 mm bar is π × (12.5 mm)² × 1 m × 7.9 g/cm³ = 3.878 kg, using the density on our 303 material page. So £36.96/m is £9.53/kg. The lowest per kg this week, across every size we track, is £6.82/kg for Ø50 mm round. Small-section retail bar costs far more per kg than mill or trade prices.

Use this on your site

A live price card for 303, updated with every weekly reading. Free to embed with the credit link intact.

Preview

Working out how much bar a job needs? Try the bar stock calculator or the metal weight calculator. The full dataset is free to reuse with credit: CSV · JSON.

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