What’s on the Cantilevers poster
The rule, 3 worked examples, and the mistake everyone makes.
- A cantilever needs far more depth than the same span supported at both ends, plus a b…
- backspan at least 2 to 3 x the cantilever
- 2 m cantilever = 4 to 6 m backspan
- Depth for 3 m = about 3000 / 9 = 330 mm
- Same span, propped = about 3000 / 20 = 150 mm
- Common mistake: Cantilevering the slab straight out → Break the slab and use a therma…
Educational reference. Uplift, deflection and vibration all need checking by an engineer before the drawing is fixed.
Questions about the Cantilevers poster
- What’s on the Cantilevers poster?
- The rule, 3 worked examples, and the mistake everyone makes. A cantilever needs far more depth than the same span supported at both ends, plus a b…; backspan at least 2 to 3 x the cantilever; 2 m cantilever = 4 to 6 m backspan; Depth for 3 m = about 3000 / 9 = 330 mm; Same span, propped = about 3000 / 20 = 150 mm; Common mistake: Cantilevering the slab straight out → Break the slab and use a therma…. Educational reference. Uplift, deflection and vibration all need checking by an engineer before the drawing is fixed.
- Who is the Cantilevers poster for?
- Cantilevers belongs to the Architecture section rather than to a school year, because design is not something one grade owns. Anyone learning structure can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Cantilevers poster?
- Use it before you draw a dramatic overhang. The invisible half is usually the problem. A wall chart earns its place by being glanceable from where the work is happening, so Cantilevers belongs on the wall where that design work actually happens, within glancing distance, rather than filed away.
- What other posters go with Cantilevers?
- Arches, Vaults and Domes, How a Beam Works and Compression and Tension sit alongside Cantilevers in the Architecture section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Arches, Vaults and DomesHow a Beam WorksCompression and Tension
- Is the Cantilevers poster free to download and print?
- Yes. Cantilevers downloads as a free PDF with no account, no email and no watermark, like everything else in the Architecture section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Cantilevers poster print at?
- Cantilevers is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Cantilevers loses nothing.Printing guide
Related posters
Charts that sit alongside Cantilevers on the same wall.
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