Finishing the Modular Cabin On-site Connection
![Finishing the Modular Cabin On-site Connection](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/featured-trim_landings.jpg?fit=810%2C431&ssl=1)
The carpenter finished the area where the cabin is attached to the foundation. This is the part of the process I have had the most questions about, so I’m telling you everything I’ve seen.
![](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/sill_plate_detail.jpg?resize=500%2C350&ssl=1)
OSB Filler
Decorative Trim
The cabin is attached to the foundation and has passed another inspection, so we can move on and cover the work.
![](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/insulated_trim-c.jpg?resize=500%2C375&ssl=1)
The carpenter added PT (pressure treated) wood between the rails so that there is an even surface to nail to.
![](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/insulated_trim.jpg?resize=500%2C375&ssl=1)
Next the plan calls for OSB Filler to attach to the perimeter rail and sill plate.
OSB is Oriented Strand Board or Particle Board, engineered wood manufactured from waterproof heat-cured adhesives and wood strands that are arranged in cross-oriented layers.
![](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/insulated_trim-d.jpg?resize=500%2C375&ssl=1)
Taylor (Fowler Excavating) used ZIP System OSB. It adds insulation.
ZIP System R-sheathing is the simple all-in-one structural panel with built-in exterior insulation. Featuring integrated moisture, air and thermal protection, ZIP System R-sheathing completely reimagines traditional wall assemblies by streamlining exterior water, air and thermal management.
![](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/trim_insulation.jpg?resize=500%2C375&ssl=1)
The carpenter built landings for the front and back doors. We plan to have a porch and a carport, but this will be enough (once the steps are done) to pass inspection and get a CO.
Then 1 x 12 Pressure Treated Decorative Trim Boards covers it all. Westwood Cabins provided the trim. It was already pre-primed and ready for paint.
![](https://i0.wp.com/www.projectsmallhouse.com/blog/wp-content/uploads/2024/03/trim_painted-b.jpg?resize=500%2C380&ssl=1)
We saved some money by painting it ourselves later.