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Home » Sandblasting Cost: per m², per Hour, Minimum

How much does it cost · sandblasting

How much does it cost to sandblast a steel part?

To strip steel before painting, manual blasting to Sa 2½ costs €8 to €15 per m² on clean new steel and €18 to €40 per m² on rusted steel, while automatic shot blasting of plates and sections costs €2 to €6 per m² (QuoteBuddy, September 2026). A blast cabinet costs €40 to €70 per hour fully burdened, and almost every shop applies a minimum order of €50 to €150 (QuoteBuddy, September 2026). RFQdecoder works out the time from the surface area and the nozzle output published by F & S Surface Solutions, adds the abrasive consumed at the coal slag price published by Abrasive Blast Supply, then raises any order below the minimum to €50.

Sandblasting or shot blasting: two processes, two prices per m²

Sandblasting and shot blasting both strip steel by throwing abrasive at high speed. SteelConstruction.info describes two ways of propelling it: a jet of compressed air or centrifugal impellers (source: SteelConstruction.info, June 2026). The compressed air jet is nozzle blasting; the impellers equip large stationary automatic shot blasting plants.

ISO 8501-1 sets the grades of blast cleaning: Sa 1, Sa 2, Sa 2½ (very thorough blast cleaning) and Sa 3. According to SteelConstruction.info, bridge steelwork specifications usually require Sa 2½ or Sa 3 (source: SteelConstruction.info, June 2026).

QuoteBuddy publishes these subcontract prices for 2026: manual blasting to Sa 2½, €8 to €15 per m² on clean new steel and €18 to €40 per m² on rusted or pitted steel; automatic shot blasting of plates and sections, €2 to €6 per m²; on-site blasting, €20 to €45 per m² plus travel (source: QuoteBuddy, September 2026). The German portal Schneidforum gives usual market values of €30 to €60 per tonne of steel and €15 to €30 per m² (source: Schneidforum, July 2026).

Hourly rate and nozzle output

QuoteBuddy publishes fully burdened 2026 subcontract rates: €40 to €70 per hour in a cabinet, €60 to €100 per hour in a blast room with abrasive recovery and dust extraction, €80 to €140 per hour on site, plus travel and set-up (source: QuoteBuddy, September 2026). “Burdened”, according to the same source, covers compressor capacity, abrasive recovery, filtration, consumables and the operator (source: QuoteBuddy, September 2026). Schneidforum gives €90 to €120 per blasting hour (source: Schneidforum, July 2026).

Time follows the surface to be treated and the nozzle output. F & S Surface Solutions publishes: 1/4-inch nozzle, 100 square feet per hour (9.3 m²/h); 5/16-inch nozzle, 160 square feet per hour (14.9 m²/h); 3/8-inch nozzle, 230 square feet per hour (21.4 m²/h) (source: F & S Surface Solutions, June 2019). QuoteBuddy, for its part, publishes an output per cleanliness grade: 8 to 15 m²/h at Sa 2½ and 4 to 8 m²/h at Sa 3 (source: QuoteBuddy, September 2026). The 1/4-inch nozzle output, 9.3 m²/h, falls within the range published for Sa 2½.

RFQdecoder divides the surface to be treated by the nozzle output. If no nozzle is specified, the tool takes the slowest one, 1/4 inch, and the quote says so. Since 4 October 2026, this time has been costed at the fully burdened blast cabinet rate published by QuoteBuddy, €40 to €70 per hour (source: QuoteBuddy, September 2026).

Abrasive and minimum order: what RFQdecoder counts

The tool counts expendable abrasive, propelled by compressed air. To keep the calculation simple, F & S Surface Solutions advises figuring 5 lb of media per square foot (source: F & S Surface Solutions, June 2019), i.e. 24.4 kg per m². The price used is that of coal slag, about $0.20 per pound at Abrasive Blast Supply (source: Abrasive Blast Supply, October 2026), which describes it as an abrasive mainly used for open blasting on structural steel, bridges, tanks, ships and pipelines (source: Abrasive Blast Supply, October 2026). 5 lb at $0.20 makes $1.00 per square foot, i.e. $10.76 per m². The tool converts this amount into euros at the ECB reference rate of the day: on 2 October 2026, €1 was worth $1.1225 (source: ECB, October 2026), which gives €9.59 of abrasive per m².

QuoteBuddy states that almost every shop applies a minimum order of €50 to €150, and that this minimum is the fixed cost of a cycle plus margin (source: QuoteBuddy, September 2026). Since 4 October 2026, RFQdecoder takes it into account: if the blasting amount of the order is below €50, the bottom of the published range, the price is raised to €50 and the quote shows it on a line “subcontractor minimum order”.

The quote also shows the market benchmarks published by QuoteBuddy: manual blasting to Sa 2½, €8 to €15 per m²; automatic shot blasting of plates and sections, €2 to €6 per m²; output at Sa 2½, 8 to 15 m²/h (source: QuoteBuddy, September 2026).

Worked example

Assumptions chosen for illustration, not taken from a source: a steel plate with 0.4645 m² to be blasted (5 square feet, a value chosen so that the figures come out exactly), no nozzle specified, orders of 10, 5 and 1 part. The exchange rate is the ECB rate of 2 October 2026: €1 = $1.1225 (source: ECB, October 2026).

Published values used: 1/4-inch nozzle, 100 square feet per hour, and 5 lb of abrasive per square foot (source: F & S Surface Solutions, June 2019); coal slag at $0.20 per pound (source: Abrasive Blast Supply, October 2026); blast cabinet at €40 to €70 per hour and minimum order from €50 (source: QuoteBuddy, September 2026).

  1. Order of 10 parts: 10 × 5 = 50 square feet, i.e. 4.645 m².
  2. Nozzle time: 50 ÷ 100 = 0.5 h, i.e. 30 min.
  3. Cost of time: 0.5 h × €40/h = €20.00; 0.5 h × €70/h = €35.00.
  4. Abrasive: 50 × 5 = 250 lb (113.4 kg); 250 × $0.20 = $50.00; 50.00 ÷ 1.1225 = €44.54.
  5. Order total: 20.00 + 44.54 = €64.54 at €40/h; 35.00 + 44.54 = €79.54 at €70/h. The amount exceeds €50, so the minimum does not apply. Per part: €6.45 to €7.95, i.e. €13.89 to €17.12 per m².
  6. Order of 5 parts: 25 square feet, 0.25 h, i.e. €10.00 to €17.50 of time; 125 lb of abrasive, $25.00, i.e. €22.27. Total: €32.27 to €39.77. That is below €50: the price is raised to €50.00, i.e. €10.00 per part.
  7. Order of 1 part: 3 min, i.e. €2.00 to €3.50 of time; 25 lb of abrasive, $5.00, i.e. €4.45. Total: €6.45 to €7.95, raised to €50.00. Raising the order to the minimum adds €42.05 to €43.55 depending on the rate; the quote flags it on the “subcontractor minimum order” line.

With these assumptions, the minimum applies up to 7 parts at €40 per hour (7 parts: €45.18) and up to 6 parts at €70 per hour (6 parts: €47.73). Abrasive accounts for €44.54 of €64.54, i.e. 69% of the amount at €40 per hour. With a 3/8-inch nozzle (230 square feet per hour), the time for the 10-part order drops from 30 min to about 13 min; the abrasive, counted per square foot, does not change.

What is not included

The RFQdecoder calculation counts three items: nozzle time, abrasive and the minimum order. Time depends on surface area and nozzle; it does not vary with the cleanliness grade required or with the condition of the part. The following items are not part of this calculation:

  • The cleanliness grade. According to QuoteBuddy, compared with Sa 2½, Sa 2 costs about 20 to 30% less and Sa 3 costs 50 to 150% more, because output drops to 4 to 8 m²/h (source: QuoteBuddy, September 2026).
  • The condition of the part on arrival: on a heavily corroded surface, output can halve again (source: QuoteBuddy, September 2026).
  • Masking and handling. QuoteBuddy advises counting on the drawing the features to be protected (bores, threads, bearing seats) and giving each one real time; handling, in by crane or forklift, turning mid-cycle, out again, is another block of time (source: QuoteBuddy, September 2026).
  • Travel and set-up for on-site blasting (source: QuoteBuddy, September 2026).
  • Disposal of blasting waste. Schneidforum cites around €300 to €400 per tonne, and more, as hazardous waste, especially when it contains paint or lacquer (source: Schneidforum, July 2026).
  • The paint applied after blasting.

What to check on a quote

  • The cleanliness grade (Sa 2, Sa 2½ or Sa 3 under ISO 8501-1). According to QuoteBuddy, calling for Sa 3 where Sa 2½ would do roughly doubles the blasting line, and that call deserves a question to the customer (source: QuoteBuddy, September 2026).
  • The process: cabinet, blast room, on-site blasting or automatic shot blasting line. Plates and sections that go through an automatic line are treated at €2 to €6 per m² (source: QuoteBuddy, September 2026).
  • The surface area counted, in m², and the condition of the part on arrival (mill scale, rust, pitting).
  • The abrasive, expendable or recycled. RFQdecoder counts it as expendable, at the coal slag price. QuoteBuddy writes that in a cabinet the abrasive per part costs almost nothing and that the cost lies in the operator’s minutes (source: QuoteBuddy, September 2026). If the subcontractor recycles its abrasive, the abrasive line of the RFQdecoder quote is therefore higher than its actual spend (deduction).
  • The minimum order. QuoteBuddy points out that a single bracket worth €3 of blasting still occupies the whole installation (source: QuoteBuddy, September 2026). Grouping parts in one order avoids paying the minimum several times.
  • Masking, handling and waste: separate lines, or included in the price per m²?

Sources

Frequently asked questions

QuoteBuddy publishes for 2026: €8 to €15 per m² to Sa 2½ on clean new steel, €18 to €40 per m² on rusted or pitted steel, €2 to €6 per m² for automatic shot blasting of plates and sections. The German portal Schneidforum gives €15 to €30 per m². In the example on this page, RFQdecoder arrives at €13.89 to €17.12 per m², of which €9.59 is abrasive.

€40 to €70 per hour fully burdened in subcontracting according to QuoteBuddy (September 2026), against €60 to €100 per hour for a blast room with recovery and €80 to €140 per hour on site, plus travel. RFQdecoder costs nozzle time at the cabinet rate, €40 to €70 per hour.

According to QuoteBuddy, the fixed cost of a cycle is the same for one part or for forty, and the €50 to €150 minimum is that fixed block plus margin. When the order stays below €50, RFQdecoder raises the price to €50 and shows it on a “subcontractor minimum order” line.

The slowest, 1/4 inch: 100 square feet per hour (9.3 m²/h) according to F & S Surface Solutions, and the quote says so. With a 5/16-inch (14.9 m²/h) or 3/8-inch nozzle (21.4 m²/h), time drops accordingly; the abrasive, counted at 5 lb per square foot, stays the same.

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