Reconcile steel when offcuts can still be used

Illustrative example: from package start to 30 September, one subcontractor has received a cumulative 20 tonnes of steel, starting with no opening custody. Installed quantities cover that same period; offcuts and scrap are closing quantities. All figures use the agreed reconciliation basis. There have been no returns or transfers out, and no unused full lengths remain in this simplified example.

The residual is 20 − 17 − 1.5 − 0.8 = 0.7 tonne. That is 3.5% of the 20 tonnes issued, but the percentage alone does not tell you the cause or establish an allowable loss. The quantity may relate to an omitted return, a count error, a different measurement basis or an actual shortage.

Calling all 2.3 tonnes of remnants scrap would hide material that might serve later work. Calling all remnants reusable would overstate usable stock. Neither label changes the 0.7-tonne residual; classification and completeness are separate questions.

The bar bending schedule, or BBS, is an input controlled by the relevant engineering process. Record its identifier and revision, the work location and the measurement supporting the installed quantity. The qualified engineer supplies the approved technical basis; the reconciliation team checks which material movements and quantities relate to it.

When a schedule changes, identify which work used the earlier revision and which uses the later one. Replacing the whole period’s theoretical quantity with the latest schedule can create a false variance. Rework and changed scope also need explicit treatment, so steel removed from one location does not remain counted as permanently installed there.

Receipt weight and theoretical scheduled weight are not automatically interchangeable. Keep the original receipt evidence and the approved conversion or comparison method. If the project accepts a basis difference, explain it as a separate reconciliation line with approval, rather than burying it in scrap.

Create a small offcut register that the yard can maintain. Capture material identity or traceability group, grade, diameter or section, usable length, quantity or weight, condition, location and the person accepting the classification. The engineer determines suitability for a proposed use; the storekeeper determines whether the pieces can actually be found and issued.

The commercial treatment may depend on ownership. Client-owned remnants should remain in that owner’s account unless an authorised agreement changes their destination. A subcontractor holding a piece does not necessarily own it.

Avoid counting a proposed future use as consumption. Until the material is issued and supported by the relevant work record, it remains stock in custody. Review ageing offcuts so that “reusable” does not become a permanent parking category for unidentified material.

Keep a separate pending-assessment category for remnants whose identity or condition cannot yet be confirmed. Count them physically, but exclude them from usable stock until the engineer resolves the question. Moving a piece from reusable to pending or scrap changes its classification, not the total material accounted for. Record any later disposal as a separate movement so it cannot also remain in closing scrap stock.

Continue the illustrative example. In October, the engineer accepts a use for 0.6 tonne of the 1.5-tonne offcut stock. The yard issues that quantity to a different approved package. Remaining offcut stock becomes 0.9 tonne.

At the first package’s boundary, record an authorised transfer out. At the receiving package, record the corresponding transfer in. At the overall site boundary, there is no new purchase receipt and no increase in total steel. When installation is supported, the receiving package records the relevant consumption.

This is why a material-movement system needs identifiable transfers and locations. ERPNext’s stock-entry documentation provides a product example of those movement types. The technical decision to reuse a piece is separate from the system transaction.

If a transfer is entered at only one end, flag it as an outstanding handover. If the same piece is listed in both packages’ closing offcut stock, investigate the duplicate identity. The register should make these errors easier to find than a monthly total does.

Scrap classification, physical disposal and a financial recovery are three different decisions. Record the quantity and location when classified, the approval and evidence when disposed of, and the contractual basis if a recovery is proposed. Preserve sale or removal references under the project’s controls.

For public works covered by the Department of Expenditure manual, section 7.6.3 expressly includes scrap and offcut returns in material reconciliation. Keep those return records available for closeout. The project's executed contract determines the applicable recovery or allowance.

A joint review should include stores, the subcontractor representative, the QS and the relevant engineer. Finance becomes involved when quantities affect inventory value, disposal proceeds or recoveries. A dispute about rate should not prevent the parties from recording an agreed physical count.

Tracking every tiny piece individually may cost more effort than it provides. The engineer and stores owner should agree practical grouping rules while preserving the traceability required for the material and project. High-value or technically distinct remnants may need individual identity; homogeneous groups may be counted together under an approved method.

Measure how much offcut stock can be located and verified, how long it has remained unused, and how often transfers need correction. Reuse value should be based on actual approved use and a finance-approved valuation, not on the original purchase value of everything in the yard.

An offcut is useful only when its identity, condition and custody support an authorised use. Keeping that evidence alongside the material balance gives the next package a reliable starting point and makes the unresolved residual more meaningful.

1. Agree the installed-quantity basis and applicable BBS revisions.
2. Jointly count unused lengths, reusable offcuts and scrap.
3. Give reusable stock a location and sufficient technical identity.
4. Link every reuse transfer at both package boundaries.
5. Resolve the residual and approve commercial treatment separately, using the broader material reconciliation method.