Calqi
Calqi

FOR ARCHITECTS

Your specification
and measurement sheet
should never drift apart.

Your specification
and measurement sheet
should never drift apart.

Your specification
and measurement sheet
should never drift apart.

Create specifications, quantities, estimates and price requests on one project structure, then compare the offers that come back.

Specifications, quantities, estimates and price requests on one structure.

Everything a tender needs,
in the order you work.

Everything a tender needs,
in the order you work.

Everything a tender needs,
in the order you work.

Read it like a specification: numbered, in sequence, one subject per chapter.

01

01

One project structure.

One project structure.

Chapters, articles, automatic numbering, lots, measurement types (LSQ, EQ, LS, PM) and units. Move an article and the numbering follows.

Chapters, articles, automatic numbering, lots, measurement types (LSQ, EQ, LS, PM) and units. Move an article and the numbering follows.

02

02

Reuse what your office already knows.

Reuse what your office already knows.

Start from your office library or an earlier project instead of a blank page. Texts, standards and execution notes come along.

Start from your office library or an earlier project instead of a blank page. Texts, standards and execution notes come along.

03

03

Quantities with structure.

Quantities with structure.

Measurement lines with dimensions, coefficients and deductions for openings, grouped per article. The total is always the sum of its lines.

Measurement lines with dimensions, coefficients and deductions for openings, grouped per article. The total is always the sum of its lines.

04

04

Know the budget before you tender.

Know the budget before you tender.

Prepare an estimate, compare variants and follow received prices against it.

Prepare an estimate, compare variants and follow received prices against it.

05

05

Send each lot to the right contractors.

Send each lot to the right contractors.

Invite contractors per lot with the same articles, quantities and documents. See who was invited, who replied and who needs a reminder.

Invite contractors per lot with the same articles, quantities and documents. See who was invited, who replied and who needs a reminder.

06

06

Compare apples to apples.

Compare apples to apples.

Offers come back on the same structure. Totals line up against your estimate and abnormal prices are flagged per line.

Offers come back on the same structure. Totals line up against your estimate and abnormal prices are flagged per line.

07

07

Documents when you need them.

Documents when you need them.

Calqi is not a closed system. Export specifications and measurement sheets for the client, the permit file or the archive.

Calqi is not a closed system. Export specifications and measurement sheets for the client, the permit file or the archive.

PUBLIC TENDERS IN BELGIUM

Working to a standard specification?

Working to a standard specification?

Working to a standard specification?

Calqi can follow the structure of the Belgian standard specifications used in public tenders, so your project matches what the contracting authority expects.

Calqi can follow VMSW, BBW and CCTB structures.

BBW 2025
BBW 2025
Mar 2, 2026
Bouwtechnisch Bestek Woningbouw 2025, het standaardbestek voor woningbouw in Vlaanderen.
Vlaanderen
CCTB 01.13
CCTB 01.13
Apr 13, 2026
Nouvelle version du CCTB 01.13 publiée par la Région wallonne.
CD
Wallonie
Standaardbestek 250 - 5.0
Standaardbestek 250 - 5.0
Jan 7, 2026
Het ‘Standaardbestek 250 voor de wegenbouw’, versie 5.0.
Vlaanderen

200

200

architects

1,000+

1,000+

projects

ARCHITECT

“We write the specification once, and the offers come back on the same items. Comparing three roofers now takes an afternoon instead of a week.”

“We write the specification once, and the offers come back on the same items. Comparing three roofers now takes an afternoon instead of a week.”

“We write the specification once, and the offers come back on the same items. Comparing three roofers now takes an afternoon instead of a week.”

SC

Sofie Claes

Project architect · Studio Noord

Questions architects ask.

Questions architects ask.

Questions architects ask.

Pricing for architecture firms is on the pricing page.

See pricing for architects

You can start from your office library or an earlier Calqi project. Importing from Word or Excel is being confirmed.

You can start from your office library or an earlier Calqi project. Importing from Word or Excel is being confirmed.

Bring your next tender
into one structure.

Bring your next tender
into one structure.

Bring your next tender
into one structure.

FREE TRIAL

Calqi

From specification to priced offer.

Build Together

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