ParaCrux01 / WRITE
One file per size.
Each section becomes a SOLIDWORKS weldment profile under ParaCrux EN\<type>\<size>.sldlfp, with its designation, standard and area as custom properties.
Features · Structural profiles
Search a section. Build with it in SOLIDWORKS.
283 standard steel sections, reconciled against their standards. Find one by designation, then send the whole library to SOLIDWORKS as weldment profiles. Each one is checked there before it is kept. Beams and columns carry their root radii, so masses match the tables.
Profile search and the SOLIDWORKS export both ship in the desktop app today.
UB 203
- UB 203x102x23
- UB 203x133x25
- UB 203x133x30
3 of 283 · BS 4-1 / EN 10365
- Area
- 3,196.82 mm²
- SOLIDWORKS mass
- 25.1 kg/m
- Tabulated
- 25.1 kg/m ✓
- 283 sections in 6 families
- 283 / 283 checked as SOLIDWORKS members
- 137 beams and columns with root radii
- ≤ 0.5 % from tabulated kg/m
A mezzanine, straight from the library.
4 × 3 m at 2,700 mm, with a handrail on two sides and the stair opening on the third. Every member is a ParaCrux EN profile.
Members, as they go in
- COLUMNS4 × UC 152×152×23
- MAIN BEAMS2 × UB 254×146×31
- END BEAMS2 × UB 203×133×25
- JOISTS3 × UB 152×89×16
- BRACING4 × L 60×60×6
- HANDRAIL POSTS7 × SHS 50×50×4.0
- HANDRAILS4 × SHS 50×50×4.0
- TOE PLATES2 × FB 100×10
28 members, 1,067 kg of steel.
Cut list
| Member | Section | Qty | Length, mm | kg/m | Mass, kg |
|---|---|---|---|---|---|
| Columns | UC 152×152×23 | 4 | 2,700 | 22.96 | 247.9 |
| Main beams | UB 254×146×31 | 2 | 4,000 | 31.15 | 249.2 |
| End beams | UB 203×133×25 | 2 | 3,000 | 25.10 | 150.6 |
| Joists | UB 152×89×16 | 3 | 3,000 | 15.99 | 143.9 |
| Bracing | L 60×60×6 | 4 | 4,826 / 4,036 | 5.37 | 95.2 |
| Handrail posts | SHS 50×50×4.0 | 7 | 1,100 | 5.78 | 44.5 |
| Handrails | SHS 50×50×4.0 | 4 | 4,000 / 3,000 | 5.78 | 80.9 |
| Toe plates | FB 100×10 | 2 | 4,000 / 3,000 | 7.85 | 55.0 |
| Total | 28 | 1,067.1 |
An illustrative layout, not a structural design. Lengths are centreline lengths before end trims. Masses are the library's section areas at 7,850 kg/m³, the same areas SOLIDWORKS measures from the exported profiles.
Into SOLIDWORKS, checked there.
One button in Home → Profiles. SOLIDWORKS writes the files itself, and each one has to pass before it is kept.
02 / CHECK
Built as a member first.
SOLIDWORKS builds every new file as a 1 m structural member. If the member's area doesn't match the library, the file isn't kept.
03 / REGISTER
Pick ParaCrux EN.
The folder is added to SOLIDWORKS' weldment-profile locations, so Structural Member offers Standard “ParaCrux EN”. Later exports rewrite only what changed.
What we checked in SOLIDWORKS 2026
30 September 2026, SOLIDWORKS 2026 (34.4.1), through the desktop's own export path.
| Check | Result |
|---|---|
| Write all 283 sizes through SOLIDWORKS | 283 written, 0 failed, in 27 minutes. Each was built as a 1 m structural member before it was kept, and the member's area matched the library to 1 part in 10⁶. |
| Register the folder | Added to SOLIDWORKS' weldment-profile locations, after the folder that was already there. |
| Export again with the same library | 0 rewritten, 283 unchanged, in under a second. |
| UB 203×133×25 with its r 7.6 root radii | 3,196.8 mm² member: 25.1 kg/m at 7,850 kg/m³, against 25.1 kg/m tabulated. |
Reconciled against the standard.
Ask the Agent for "a 50 by 30 RHS" or "the lightest 203 UB" and it searches this catalogue.
| Family | Standard | Sizes |
|---|---|---|
| Universal beams and columns | BS 4-1 / EN 10365 | 137 |
| Equal angles | EN 10056-1 | 93 |
| Square hollow sections | EN 10210-2 / EN 10219-2 | 15 |
| Rectangular hollow sections | EN 10210-2 / EN 10219-2 | 14 |
| Circular hollow sections | EN 10210-2 / EN 10219-2 | 12 |
| Flat bar | EN 10058 | 12 |
- Every beam and column row is checked against its own designated mass per metre.
- We researched 374 rows from a 2023 steel producer's sales programme. 199 passed our checks and went in. The rest were held back, not guessed.
- Every size is generated from its dimensions and pinned by hash, so it builds the same on every machine.
- Angles and hollow sections have sharp corners: their corner radii aren't in the library data yet, and we don't invent them.
What ships today, and what's in the lab.
We would rather under-claim. If it isn't in the first column, you can't use it in the Agent yet.
Available In the Agent today
- Search the structural profile catalogue: 283 sections in six families
- Section dimensions and source standard for every size
- All 283 sections as SOLIDWORKS weldment profiles, each checked as a member
- Root radii on beams and columns, so masses match the tables
- Later exports rewrite only the sizes that changed
Lab Not yet for sale
- Frames in the ParaCrux editor: members, mitres, plates, welds and a cut list
- Corner radii for angles and hollow sections, once they can be cited
Missing a section you use?
Tell us the standard and designation. We add it when we can cite it, and we'll tell you if we can't.