CAD (DWG/DXF) → layer mapping → normalized model → ETABS (.e2k)
Save your AutoCAD DWG as DXF, assign its layers, and let StructaCAD identify and normalize columns, beams, walls, slabs, foundations, grids, and levels before exporting to ETABS.
Start from the geometry your team already drafted instead of rebuilding the entire structural layout by hand.
DWG files are currently imported by first saving or exporting them as DXF.
Two useful starting points
The same import workflow works whether the drawing begins as an architectural coordination plan or a structural layout with dedicated layers.
Select which layers represent columns, beams, concrete or masonry walls, slabs, foundations, windows, and beam labels.
Import structural layers, preserve the plan orientation and grid spacing, and optionally apply a column schedule during the conversion.
DWG to ETABS process
StructaCAD converts drawing geometry into model objects, cleans their relationships, and prepares an export that can continue in ETABS.
Keep one plan view per level and save or export the file as DXF.
Map each layer to columns, beams, walls, slabs, foundations, windows or labels.
Align axes, straighten intended members, close small gaps and connect elements to structural supports.
Check levels, grids, sections, member names, slab boundaries and continuity between floors.
Download an .e2k starting model and complete the analysis setup inside ETABS.
Manual redraw vs StructaCAD
CAD linework is not an analytical model. The value of the conversion is recognizing structural intent and resolving the small drafting inconsistencies that would otherwise become disconnected ETABS objects.
The engineer redraws grids, columns, beams, walls and slabs level by level, then corrects offsets and connectivity after the first analysis check.
StructaCAD translates selected CAD layers into structural objects, applies normalization rules and gives the engineer a model that is easier to review before ETABS analysis.
Geometry normalization
Real drawings contain tiny offsets, duplicated rails, short gaps, slightly inclined lines and slab vertices that almost—but not exactly—touch their supports. StructaCAD resolves those conditions using structural context.
The importer keeps the real dimensions of the CAD file while correcting the small inconsistencies that prevent a clean analytical model.
Units, origin, axes, centerlines, supports, continuous members, slab boundaries and shared nodes.
Geometry cleanup
Members intended to be horizontal or vertical are straightened, nearby endpoints are connected and coordinates are rounded to the selected precision.
Open StructaCADMulti-level logic
For upper levels, you can filter columns and walls by continuity with the level below while retaining supported masonry walls, beams, slabs and foundations.
Generated model
After layer assignment and normalization, StructaCAD organizes the imported information as levels, grids, columns, beams, walls, slabs, foundations and roof planes that can be reviewed before the ETABS export.
Review the recognized members in plan, frame or 3D views so errors can be corrected before the model reaches ETABS.
Use the plan your team already coordinates in AutoCAD. Keep one floor plan per DXF so layers and levels can be assigned clearly.
Inspect columns, beams, walls, slabs and dimensions in a structural workspace before exporting the analytical starting model.
StructaCAD collects axis candidates, aligns nearby column centers and preserves the real spacing of the source drawing.
Beam and wall centerlines become support references for slab boundaries, intersections and shared nodes.
The reviewed geometry becomes a structured model with levels and structural objects rather than loose CAD linework.
Open the exported .e2k file in ETABS and finish materials, sections, diaphragms, loads, supports, analysis and design settings.
Who it is for
The workflow is especially useful when the architecture or preliminary structure already exists in AutoCAD, but the ETABS model has not been built yet.
Create the first ETABS geometry faster and spend more time checking structural behavior instead of tracing linework.
Turn coordinated CAD layers into a consistent structural model and reduce handoff errors.
Standardize how projects move from architectural plans into analysis across multiple engineers and offices.
Import unfamiliar plans with explicit layer mapping, units and origin controls before committing them to ETABS.
The modeling bottleneck
Lines that look connected on screen may be separated by a fraction of an inch. Columns can be slightly off-axis, beams can stop at a support face, and slab corners can miss the intended centerline.
StructaCAD uses the relationships between elements—not only the visible lines—to prepare cleaner model geometry.
What the importer resolves
The importer applies several passes because one correction can change another connection. It straightens, snaps, reconnects and rounds the model before finalizing slab boundaries and multi-level continuity.
Detect grid candidates, preserve their real spacing, move a selected intersection to the origin and round coordinates to the chosen precision.
Normalize compound columns, align nearby centers, merge continuous rails and extend beams or walls to the relevant support centerline.
Use layer and hatch evidence to distinguish reinforced-concrete and masonry walls while removing non-model cross-width markers.
Unify shared nodes, snap boundaries to supports, split flat hatch regions only at real beam or wall centerlines and reconstruct supported sloped roof planes.
FAQ
The current CAD importer reads DXF. Open the DWG in AutoCAD or another compatible CAD program and save or export it as DXF before uploading it.
Use one plan view per file. During import, choose the level, units, orientation, coordinate rounding and which layers represent each structural element.
The importer can build columns, beams, reinforced-concrete or masonry walls, slabs, foundations, windows, grids and supported roof planes from the assigned CAD information.
It corrects small drafting inconsistencies: nearby axis alignment, intentional straightening, centerline connections, coordinate rounding, continuous elements, slab support nodes and column or wall continuity between levels.
Yes. After reviewing the structural model, you can export it as an ETABS .e2k file.
Treat it as a structured starting model. Verify every member, connectivity, material, section, diaphragm, support, load, mass source, design preference and analysis assumption in ETABS before using results.
Yes. Import one plan per level. You can reuse existing levels and axes, create new levels and optionally keep only columns and walls that continue from the level below.
It suggests layer classifications from names and geometry, but you review and approve the mapping. Clean, consistently layered drawings produce the best starting model.
Start from the drawing you already have
Import one floor plan, review the normalized geometry and export an ETABS .e2k starting model from the same StructaCAD workspace.