MARSHALL Premium has 70mm  (2-3/4″) thick wall logs.  The total footprint of this model is 26′ x 48′  (1248 sq’) on the main floor which includes the covered deck, plus 26′ x 22′ (572 sq’) on the upper level. This model features stairs with landings, and the upper level has an additional 4′ covered balcony.  The vaulted ceilings throughout provide a spacious open design.
 
Wall insulating kit: Add 10% to sale price, includes metal stud brackets with 3/4″ tongue & groove wall cover boards   
 
Energy efficiency:  2×4 or 2×6 studs are be used to install insulation of your choice. Our solid wood walls add an additional R 4.4 and have virtually no heat or cold transfer, increasing the overall thermal and comfort benefits.
Tip: Mineral wool  insulation is recommended for log construction. It’s impervious to moisture with a higher R-value per inch than fiberglass, reduces noise levels & is environmentally friendly
Insulating the roof: Apply locally supplied materials to add rafters over the tongue & groove roof boards. The build up depth is determined by the required R-value in the ceiling to meet local building codes. High density spray foam provides maximum benefits, highest R-value for thickness & is water proof. These added rafters also increase the roof load capacity
Assembly: The model can be assembled in approximately 10 days or less with 3 people
Tip: House wraps & vapor barriers are required in most regions when insulating. Vapor barriers are installed on the warm side of walls, interior of the studs for cold climates and exterior of studs for hot climates
Building Codes: Premium series homes & cabins are manufactured to meet all structural requirements for building codes including, California Title 24, earthquake, heavy snow load regions and hurricane zones
Kit Includes:
FREE SHIPPING some exceptions apply
no floor, ready to assemble on a concrete slab or wood foundation
pre-cut, numbered exterior walls
pre-cut, numbered interior walls
pre-cut, numbered gable components
vaulted, cathedral ceilings
pre-cut, 100mm x 200mm (4″x8″) numbered roof purlins, beams, spaced 558mm (22″) or less
pre-cut, numbered (18mm) 3/4″ tongue & groove roof boards
pre-cut, numbered fascia boards
pre-cut 100mm x 200mm (4″x8″) numbered floor beams, spaced 558mm (22″) or less
pre-cut loft floor boards 28mm (1-18″)
stairs, landings, railings as required by building codes
5 interior doors 900mm x 2040mm (36″x80″)
6 single wide wood windows 765mm x 990mm (30″x39″) 
6 double wide wood windows 1530mm x 990mm (60″x39″)
3 exterior doors 990mm x 2040mm (36″x80″) 1/2 glass tempered
adjustable posts
prebuilt deck railings with vertical balustrades
hardware for doors & windows
threaded steel storm rods for perimeter wall junctions
2 spare wall logs/spare roof boards
400 – 8″ log screws to connect first 2 rows,  gable components, purlins