Welcome to cordwoodmasonry.com

The virtual home for Earthwood Building School, accenting Cordwood masonry, Earth-Sheltered Housing and Timber Framing for the Rest of Us! And it’s all under one roof: a Living Roof!

2021 was our final season of workshops at Earthwood Building School in West Chazy, NY. We will continue to provide books, videos, and plans through this website. Also, Rob and Jaki Roy are open to conducting cordwood workshops at other locations in North America and around the world by arrangement with organizers at least six months in advance of the desired workshop dates. Interested parties should email us at robandjaki(at)yahoo(dot)com.

In fact, we are scheduled to do a 3-day Cordwood Masonry Workshop in Montana in August. The basic details are that it will be held at the Artists’ Refuge at Thunderhead, Hughesville, Montana from Tuesday though Friday, August 1-3, 2023. The tuition is $475/person and includes three lunches and an end-of-workshop dinner. Camping is available at $15/night per site. Some cabins and RV hook-ups are available for a fee. There is free camping available nearby at the Lewis and Clark National Forest.

Do not register with Earthwood. To register – or for more information – contact Chris Komer at komerchristopher@gmail.com or call him at (646) 784-5017. The website is  www.thunderheadrefuge.com

See the poster here (clearer on www.thunderheadrefuge.com) :


Cordwood Masonry Masonry Building Workshop in Montana

Montana Cordwood Masonry Building Workshop


Also, we can do private 3-hour workshops for an individual or a couple at our – now – permanent home at Chateaugay Lake, New York.  We have a framed panel set up on site, where we teach students to build a cordwood wall.  You will learn to mix mortar, lay up the log-ends with insulation, finish the mortar with a pointing knife.  After three hours, you will be able to build a very nice cordwood panel.  You will also see our Mushwood home (the one on the cover of Cordwood Building) and three other small cordwood buildings. The tuition for either one or two people is $300.

Private workshops available at 'Mushwood'

Private workshops available at ‘Mushwood’



The Earthwood campus has a variety of cordwood masonry buildings which hundreds of students have helped to create. They include four guesthouses, a bookstore/library, sauna, mess hall and garage. All have living roofs.

Round Outbuildings

Round Outbuildings

Stoneview Guesthouse

Stoneview Guesthouse is an octagon.

In addition, various big stones have grown in numbers, some during Stone Circle Workshops. The stone circle has been a gathering place for workshop introductions and evening socials. A positive aspect of workshops has been the feeling of support from other like-minded students. Cordwood building draws a special group of people!


Solar panels at Earthwood with old technology in the foreground and modern in the background

Ancient and modern solar technology at Earthwood: a megalithic stone circle in the foreground and photovoltaics in the background.

Earthwood Building School is in the northeastern foothills of New York’s Adirondacks, close to the Canadian border. We’re an off-grid facility getting all of our electricity from solar energy. Over the years more photovoltaic panels have been added, the last in November 2016.

Because Earthwood is in a reclaimed gravel pit, the only viable option for a vegetable garden is raised bed gardening and we have found that ‘raised raised’ beds work really well for us. They help keep most animals out, and, most importantly, they’re great for your back! We have also experimented with hugelkultur, a mounded garden popular in Germany.

‘Raised Raised’ bed gardening

‘Raised Raised’ bed gardening

The Beauty of Cordwood Masonry

Cordwood masonry construction is an inexpensive, sustainable way that anyone can use to build beautiful homes and more.

Cordwood Masonry Construction Workshops

Children, grandmothers and beavers can all build cordwood homes and so can you. We teach in the U.S. and internationally.

Earth-sheltered Housing and Living Roofs

Increase sustainability using earth's constant temperature and insulation value, and to lessen displacement of habitat!


Took the week long class, add 5 1/2 yrs building and now mortgage free. Love the house everyday. The roundness makes me feel more secure than any square or rectangular house I have ever been in. Thanks Rob and Jaki!

Barbara Pryor

My wife and I had the wonderful opportunity of visiting Rob & Jaki Roy at their home in New York. They let us stay with them for an evening and it was wonderful. Their completed projects are a work of art and so are their books, which I had the pleasure of reading before meeting them! If you are looking for something different and inspirational for creative living, start here, you won't be disappointed!! 🙂

Erek Cyr

Rob and Jaki are both such friendly and knowledgeable people! I had the pleasure of doing the 5 day workshop and can't wait to start building my own cordwood cabin!

Carey Fiorello