Can you make a window using a hollowed out log and plexiglass?  Of course you can if you follow the method that Pelle Henriksson used in his sauna.  All pictures are courtesy of Pelle Henriksson and are used with permission.  Pelle window log 31.  First you clean out and sand the hollowed out log.  Pelle window log 7

2. Once clean it must be routed with a hand router so that the window can be cut and fit to the opening.  Pelle window log 63.   Make a template with a piece of heavy duty paper and a scissors or sharp knife. Pelle window log 5 Did a paper trace and then googled how to cut glass.4.  Cut the piece of plexiglass (available in hardware stores and building supply stores) to match the template. Pelle window log 45. Then use silicone caulk to attach the glass securely to the routed edge.  Pelle window log 36.  Note that the glass portion goes to the outside of the cordwood wall and the inside is more like a shelf.  This would not be advisable for a house in a very cold climate as it would have a very low thermal resistance (R-value).  This application is on a sauna.   Pelle window log 2

7.  Pelle caulked his window on the outside and painted it before inserting it into his cordwood sauna wall. Pelle window log 1Want to see how Pelle’s built his sauna?  Click on the link below:

Should you wish to learn how to build a cordwood cottage, cabin or home, please visit   While you are there, click on the pictures, read the brief articles, check out the latest workshops and newsletter and if you are interested click on the Online Bookstore to see all the cordwood literature available in print and ebook format.Cordwood Construction Best Practices Front_Cover_-_CC_Best_Practices small pixelsIf you have questions that aren’t answered on the website you can email me at  

Readers have requested a brief bio, so here goes:

Richard & Becky Flatau built their mortgage-free cordwood home in 1979 in Merrill, Wisconsin. Since then, they have written books, conducted workshops, facilitated the 2005,  2011 and 2015 Cordwood Conferences and provided consultation for thousands of cordwood builders.  Cordwood Construction: Best Practices DVD,  Cordwood Construction Best Practices (print) and Cordwood Conference Papers 2015 are the newest publications available from their online cordwood bookstore.

Here is a picture of the Cordwood Workshop Video cover, featuring the Cordwood Education Center.

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For more information on Cordwood Construction, click on the picture or visit   Below is the 30 item Video menu. 

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