Steel: Properties, Sections, Connections
Strong, slender and unforgiving.
Steel rewards those who know it.
Build real fluency with the frame beneath modern architecture — sections, connections and character — and design in steel with the ease of an old friend.
Steel sections and joints will speak your language.
- Read section shapes — know your beams and columns and what each profile does best
- Grasp every connection — see how bolts and welds turn loose pieces into structures
- Exploit the slenderness — use steel's strength to make structure almost disappear
- Protect the frame — handle fire and corrosion so steel lasts as promised
- Detail with precision — draw steelwork that fabricators can price and build cleanly
- Express the structure — celebrate the frame when it deserves to be seen
Built by one of the most-read architecture platforms in the world.
RTF | Rethinking The Future has spent over a decade publishing the ideas, projects and voices shaping architecture — and now brings that depth to learning. Every course is researched, written and produced by the RTF team.
Fluency in steel never goes soft.
A clear path. Five steps.
Everything unlocks instantly with membership · learn at your own pace
If you see yourself here, start today.
A few hours from now, you could already see differently.
Steel sections were an alphabet soup I ordered from without understanding. The course connected properties, section shapes and connection types into a coherent logic. I now sketch realistic steel details and my conversations with fabricators have improved beyond recognition.
Simple by design.
Watch
Short, focused video lessons — each one a single idea, clearly explained.
Apply
End every lesson with a small task that pushes your real project forward.
Transform
Watch your work develop a point of view that is unmistakably yours.
Answered simply.
Do I need to calculate steel sizes to benefit from this?
No — the course gives you the working vocabulary of sections, spans and connections so you can sketch believable steel and talk fluently with engineers.
Will I understand why connections matter so much?
Yes — connections are where steel design is really decided, and reading them is the skill that separates informed architects from spectators.
Do I need any prior experience?
No. Every course starts from where you are and builds up step by step, in plain language.
Is this software training?
No — software changes yearly. The thinking you learn here lasts a career.
How does it work?
Short video lessons with a small practice task after each. Any device, your pace.
What does membership include?
One membership unlocks every course on RTF Academy — all 450+, nothing sold separately. And you stay in control: cancel anytime in one click, and you will never be charged again.
Ready to see your work change?
Your next project could be the one that feels truly yours.
- 5 Sections
- 25 Lessons
- 4 Hours
- 1. What It Does and How It Fails5
- 2. The Options Compared5
- 3. The Detail5
- 4. Performance5
- 5. Specifying and Building It5
Reviews
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Steel sections were an alphabet soup I ordered from without understanding. The course connected properties, section shapes and connection types into a coherent logic. I now sketch realistic steel details and my conversations with fabricators have improved beyond recognition.
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