The solution

Answering more tenders, concretely.

Four steps, in one tool: modelling, EC3 calculation, costing, then export and follow-up. Here is each one in detail.

01 / Modelling

This building took under 6 minutes.

Dimensions are entered once, in the grid: lines in plan, levels in height. Columns and rafters sit on their intersections, with no length or angle to type. Draw one portal frame, stretch it along the length: the bays follow. Purlins, girts and posts are never drawn: a roof pitch, a facade, a count, and they are generated. The client wants one more metre to the eaves? Change one level, the whole building follows.

Dimensions live in the grid: X lines, Y lines, levels
One portal frame drawn, the bays in a single gesture
Purlins, girts and posts generated per pitch and per facade

Capture · 3D modeler. Two-pitch portal building with a lean-to, wall girts and a sectional door, modelled in under 6 minutes

02 / EC3

Pre-sizing is automatic.

Pre-sizing per EC0, EC1, and EC3: recommended sections, utilisation ratio τ = Ed/Rd, grade optimisation across S235, S275, S355, French and Belgian national annexes.

Recommended sections and utilisation ratios
Grade optimisation across S235, S275, S355
French (NF EN) and Belgian (NBN EN) national annexes

app.structade.fr / calculationPreview · EC3 calculation

Elements

Full frame
Portal frames
Gable framing
Purlins and roof
Bracing

Element	Section	Grade	Qty	Length (m)	kg/m	kg
Column	IPE 550	S275JR	10	7.00	106.0	8,029
Rafter	IPE 500	S275JR	10	7.75	90.7	7,606
Haunch	PRS 10008/30020	S355JR	10	0.78	157.0	1,317
Gable post	IPE 220	S275JR	8	8.00	26.2	1,814
Purlin stay	UPE 180	S275JR	4	7.75	20.2	678
Bracing	L 50*5	S235JR	4	12.00	3.8	196

The sections selected, member by member

03 / Costing

From take-off to a quote ready to submit.

Automatic take-off by family, margins per line, INSEE BT07 and BT08 indexing. At the end of design, the project moves to pricing: the estimator works on read-only geometry, and prices and margins stay invisible to the designer.

Margins managed internally, per line
Automatic monthly price indexing
Separation of duties, prices protected

app.structade.fr / pricingPreview · Pricing

Code	Item	kg	kg/m²
Oss1	Main frame	18,638	23.18
PR	Crane runway	6,393	7.95
Oss2	Secondary framing	3,798	4.72
CVT	Bracing	2,587	3.22
PRS	Plate girder	1,317	1.64
	Total steelwork	32,733	40.71

The take-off by item, in kg and kg/m²

Who owns design and who sees prices and margins, by role.
Role	Design	Prices and margins
Designer	Owner	Hidden
Estimator	Read	Owner
Manager	Read	Read
Administrator	Full	Full

Margins are never exported: only sale prices appear in client documents.

04 / Export and follow-up

The quote goes out, and the tender is tracked.

The deliverable comes out as professional PDF and Excel, sale prices only, with the IFC model. The pipeline then reads column by column, from design to archive: each card carries the client, the deadline, and the status.

PDF, Excel, and IFC in your brand
Project cards with revisions and variants
Columns filtered by your role

Design3

Atelier CLM

2d ago

Hangar Duval

5d ago

Entrepôt Logipro

9d ago

Costing / Offer1

Serre BioVert

3d ago

Validation0

No tenders

Tracking1

Extension SudMetal

14d ago

Revision

Won1

Entrepôt Moreau

21d ago

Won

Lost / Cancelled1

Halle Vasseur

30d ago

Lost

The tender pipeline, column by column

Scope

Your building, not our example.

What Structade covers at launch, what the calculation assumes, and what stays out of scope. If your tender fits this frame, the tool carries it end to end.

What Structade covers

What Structade covers	Detail
Building types	Symmetric or asymmetric two-pitch portal frames, single-pitch, multi-bay halls with intermediate columns.
Dimensions	Spans up to 30 m per bay, up to 10 m at the eaves, unlimited length.
Sections and grades	Rolled IPE, HEA, HEB sections and tapered-web PRS. Grades S235, S275, S355, with optimisation.
Envelope	Purlins, girts, and façade openings: sectional doors, pedestrian doors, windows.
Bracing	Placed by you in the modeler, sized by Structade.
Loads	Snow and wind determined from the address (EC1 zones, French or Belgian national annex), simplified method suited to pre-sizing.
Checks	EC3: section resistance (ULS), deflections (SLS), instabilities (buckling, lateral-torsional buckling). Automatic EC0 combinations.
What comes out	Sections and utilisation ratios, base reactions at column feet, take-off, PDF and Excel quote, IFC model, calculation note.

The assumptions

Every degree of freedom has exactly one driver: a value, an expression, or a derivation.
Levels drive the heights; slopes and ridges are derived from them.
Every member end anchors to a grid point: the model is correct by construction.
National annexes are injected, never hardcoded.

Out of scope at launch

Extending an existing building.
Seismic design (EC8).
Connection design (end plates, bolts, welds): stays with the execution study.
Fire resistance.
Concrete columns and composite structures: steel only.

Your calculation software keeps the execution study. Structade stops where it begins.

What's next

What is coming next.

soonAI extraction from an email or a PDF
soonTransport and assembly costs
soonGerman national annex

Early access

Be among the first to quote with Structade.

Launching in H1 2027 · limited beta seats. Leave your email and we will write the moment access opens.