Phase 2: Intermediate Construction IntermediateHands-on

Building real structures

Phase 2 construction means real structures. The single best move here isn't a video or a book, it's a weekend natural building workshop. By every account I've read and heard, one afternoon of mixing cob with your feet changes your relationship to building materials in a way no video can. Timber framing, earthen plasters, and rubble trench foundations are all learnable with good guidance and a willingness to get dirty.

Start here

2025 Cob Workshops - Learn How to Build a Cob House

This Cob HouseWhat a hands-on cob workshop actually looks like, useful for knowing what you're signing up for before you book one.

Traditional Timber Framing Made Easy: The Mortise and Tenon Joint

Simon DunnLayout, cutting, and fitting the joint that timber construction is built on, demonstrated by hand.

Traditional Timber Framing Basics | Learn Square Rule & Hand-Cut Joinery

Square rule layout and hand-cut joinery on a tie beam, hand tools only. A good second sitting once the basic joint makes sense.

First project

Attend a natural building workshop

Find a hands-on cob, adobe, or rammed earth workshop, typically a weekend or week-long format; they run regularly across North America and Europe. Then come home and build something small in the same material: a garden bench, an outdoor oven, a wall section. The workshop gives you the feel for the material. The follow-up project proves you actually have it.

Cost: $200–800 for a workshop, materials usually includedTime: One weekend workshop + a follow-up project

Other ways in

Cob garden bench or outdoor pizza oven

A small freestanding cob object that gets full weather exposure year-round. A bench or pizza oven is the right scale here: enough mass to calibrate your mix proportions for your local subsoil, enough exterior surface to validate lime-plaster topcoats and drainage details, and a single full weather cycle to confirm both. The numbers and finishes you settle on become the spec sheet for the larger cob work that follows.

Cost: $80–250 in subsoil, sand, straw, and a barrel oven door if building an ovenTime: Two to three weekends

Hand-cut timber-frame sawhorses

Build a pair of timber-frame sawhorses using mortise-and-tenon joinery, by hand with chisel and mallet. The joints teach layout (reference faces, square rule vs. scribe rule), accurate paring, and how to fit a joint that does not rack under load. The sawhorses become shop infrastructure you use on every later build, and the joint itself is the same one that holds a timber-frame structure together. Direct skill transfer, finished tool at the end.

Cost: $40–80 for two 4×4s and joinery chisels you do not already ownTime: A weekend
Next

Phase 3 construction is leading a complete natural build, earthship, cob, or timber frame, and training others while you do it. See construction in phase 3

Go deeper

Building with Cob

Adam Weismann & Katy Bryce

Clear, practical, and well-photographed. Better organized than The Hand-Sculpted House if you're coming to natural building cold.

The Timber Framing Book

Stewart Elliott

The classic on timber joinery and frame design. Technical but readable, with good illustrations.

The Appropriate Technology Library

Village Earth

Hundreds of digitized how-to manuals on low-tech infrastructure: water, shelter, agriculture, energy. Searchable on archive.org alongside the related CD3WD collection.

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