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Release 2026-05-26 ~5 min read

v5.2.0 — International BOQ.
GAEB · BC3 · NRM · MasterFormat under one roof.

Epic I lands: native I/O for the four BOQ formats that cover roughly 70 % of the Tier-1 construction market — DACH, Spain, the UK and the US — plus one drag-and-drop import surface that ties them together.

v5.2

Most BOQ tools speak one regional dialect well and treat the others as “import via Excel.” Epic I refuses that compromise. v5.2.0 ships first-class round-trip parsers and writers for the four formats a mid-size international contractor actually needs, all driven by the same canonical BOQ model underneath. A DACH project can hand its GAEB X83 straight to a Spanish subcontractor as BC3; a UK NRM schedule can re-emerge as a US MasterFormat Excel without losing element traceability.

The four formats

DACH · GAEB X81 / X83 / X84

Hierarchical positions, GTU codes, FX-correct totals

The full GAEB DA XML triplet — Leistungsverzeichnis (X81), Angebot (X83), Nebenangebot (X84). Hierarchies survive round-trips. GTU codes preserved on import. Totals stay FX-correct under multi-currency.

Spain · BC3 (FIEBDC-3)

Capítulo / partida tree, mediciones, precios descompuestos

Native parser for the FIEBDC-3 line-by-line format the Spanish public sector tenders in. Full chapter-and-item tree, line measurements (mediciones) and decomposed unit prices retained on both import and export.

UK · NRM Excel

Work sections, NRM1 element codes, BCIS-compatible measurement

Schedule-of-rates Excel built to NRM 1/2 conventions: work-section structure, NRM1 element codes, measurement rules compatible with BCIS benchmarks. Export ready for a UK quantity surveyor to open without remapping.

US · MasterFormat Excel

Division / section structure, Procore-compatible export

CSI MasterFormat 2020 division and section tree, with the column shape a Procore or RSMeans-trained estimator expects. Import accepts the same shape back. Currency, units and crew rates flow through unchanged.

One import surface — Regional Exchange

A new /regional-exchange page ties the four parsers together. Drop in a file; the format is auto-detected (magic bytes plus extension); a preview shows positions, totals and the classification it landed on; one click pushes the result into a new or existing BOQ. Export is the same page in reverse: pick a BOQ, pick the target format, get a file your counterparty can open without coaching.

Why this matters

A construction firm bidding across borders typically pays for one BOQ tool per country, or pays its estimators to retype tenders into Excel. Both options are slow, both lose data, and both lock the firm into the vendor whose format is least painful to leave. With four native formats living next to one canonical model, OpenConstructionERP becomes the same tool from Munich to Madrid to Manchester to Minneapolis — and the cost data, classifications and resource catalogue travel with the project, not with the format.

What ships in the package

Upgrade

pip install --upgrade openconstructionerp && \
  alembic upgrade head && \
  systemctl restart openconstructionerp

Alembic head v3144. No data migration needed — the four format packs are pure I/O modules that read and write the existing canonical BOQ tables.

Try v5.2.0 today.

Live demo in your browser, or self-host in five minutes. AGPL-3.0, no signup required.