How Many 25mm Rebar Bars in a Tonne?

The Key Numbers for 25mm Rebar per Tonne

The calculation follows directly from the unit weight. For 25mm B500B reinforcing bar under DIN 488 and EN 10080:

• Weight per metre: 3.856 kg/m (formula: 25² × 0.00617)
• Cross-sectional area: 490.9 mm²
• Linear metres per tonne: 1,000 ÷ 3.856 = ≈ 259 m/tonne

Dividing total linear metres per tonne by the chosen bar length gives the number of individual bars per tonne. The table below covers the standard stock lengths available for German export supply:

As with all diameters, linear metres per tonne (≈ 259 m) remains constant regardless of bar length — only the piece count changes. Always confirm with your structural engineer whether the order is expressed in tonnes, linear metres, or piece count before placing an enquiry.

Bundle and Container Counts for 25mm Export Orders

Steel Rebar Germany ships 25mm B500B in seaworthy bundles of approximately 2 tonnes, banded and tagged per EN 10080 marking requirements. At 46.3 kg per 12 m bar, a 2-tonne bundle contains approximately 43 bars. Note that at this weight, individual bar handling on site requires mechanical assistance or a two-person lift with proper rigging.

A standard 20-foot container loaded to its structural weight limit (typically 20–24 tonnes for 12 m bars, subject to stacking configuration and port regulations) holds approximately 430–520 bars of 25mm B500B. For partial loads, LCL (less-than-container-load) groupage or break-bulk options are available. See our export and delivery page for full logistics detail.

Comparing 25mm Bars per Tonne Against Other Diameters

Understanding how bar count per tonne shifts across diameters is essential for procurement teams cross-checking quotes and planning unloading logistics:

The jump from 20mm (≈ 34 bars/tonne) to 25mm (≈ 22 bars/tonne) is substantial — roughly 35% fewer pieces per tonne. This affects unloading and distribution planning on site, particularly where bars are distributed by hand. For the 20mm comparison, see our guide on how many 20mm rebar bars are in a tonne.

Waste Allowance and Procurement Quantity

Structural drawings specify net quantities of reinforcement. Procurement must gross-up for real-world consumption:

• Cutting waste — off-cuts from bar end optimisation, typically 3–7% depending on bending schedule complexity
• Lap splices — for 25mm B500B, a standard lap length is approximately 35–50× bar diameter = 875–1,250 mm; where bars lap frequently, this adds meaningful tonnage
• Mechanical coupler zones — if couplers replace laps, waste drops but coupler and threading cost replaces it

A practical rule of thumb: add 5–8% to the net take-off quantity for standard reinforced concrete work. For heavily reinforced or geometrically complex elements, allow up to 10%. Apply this factor before converting to tonnes for your procurement order. Our rebar couplers page covers mechanical splice options that can reduce lap waste in congested sections.

How to Order 25mm Rebar from Steel Rebar Germany

When requesting a quote for 25mm B500B, provide the following information to receive an accurate commercial offer:

• Total tonnage or linear metres required
• Bar length (6 m / 12 m / 18 m, or a cut-and-bend schedule)
• Destination port or delivery address
• Documentation requirements: Mill Test Certificate EN 10204 3.1, Certificate of Origin, CE/Declaration of Performance
• Preferred Incoterms (FOB, CFR, CIF, DAP)
• Any coupler or accessory requirements alongside the bar supply

We respond with a complete commercial quotation covering unit price per tonne, freight options, estimated lead time, and documentation scope. For grade and mechanical property data — yield strength 500 MPa, Agt ≥ 5.0%, k ≥ 1.08 — see our B500B rebar product page. For the weight-per-metre data underpinning these calculations, see our companion guide: 25mm rebar weight per metre.