Questions about the Soil Classification poster

What’s on the Soil Classification poster?

A 6-row table: Group · What it is · Behaviour. Unified Soil Classification. Letters describe grading and plasticity. GW · GP — Clean gravel — Free draining, strong; SW · SP — Clean sand — Free draining, strong; SM · SC — Silty or clayey sand — Drainage falls with fines; ML · MH — Silt — Frost and erosion prone; CL · CH — Clay, low then high LL — Low permeability, shrinks; OL · OH · Pt — Organic soil and peat — Compressible, avoid loading. Educational reference. Classification sets expectations only. Design values come from testing and a qualified engineer.

Who is the Soil Classification poster for?

Soil Classification belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning geotechnical can pin it up — a beginner, a student mid-course, or someone revising years later.

When should you use the Soil Classification poster?

Reading a borehole log, or sanity-checking what a contractor has dug up. A wall chart earns its place by being glanceable from where the work is happening, so Soil Classification belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.

What other posters go with Soil Classification?

Atterberg Limits, Bearing Capacity and Compaction Control sit alongside Soil Classification in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Atterberg LimitsBearing CapacityCompaction Control

Is the Soil Classification poster free to download and print?

Yes. Soil Classification downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering 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 Soil Classification poster print at?

Soil Classification 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 Soil Classification loses nothing.Printing guide