Model #4 Colonial Mill House | 36x48

Model #4 Colonial Mill House | 36x48

Model #4 Colonial Mill House

36x48 | 3,456 square feet
Starting at $99,476

This Colonial Mill House timber frame barn kit is a beautiful showpiece of craftsmanship and classic design. With its impressive 36×48-foot footprint and full 100% 36×48 loft, this structure offers exceptional space and versatility—perfect for everything from a spacious workshop or event venue to a working barn or guest retreat.

The full loft can easily be customized to suit your needs, or reduced to create a breathtaking cathedral area that showcases the soaring beauty of exposed beams and natural wood.

Every Colonial Mill House embodies the timeless strength and elegance of traditional timber framing, combining old-world charm with modern flexibility. Whether you’re envisioning a heritage-style barn, a creative workspace, or a multi-purpose outbuilding, this design delivers both function and architectural grace—crafted to stand proudly for generations.

Quoted in full dimension rough sawn hemlock timbers.

HOW DO YOU IMAGINE USING YOUR BARN?

Smaller Barns

Garden or Potting Shed
Tool Shed
Maple Sugar Shack
Smoke House
Out House
Wendy House
Firewood Shelter
Fort
Pool Cabana

Larger Barns

Barn Home Garage / Tractor Barn
Workshop
Horse Barn
Hunting Cabin / Cabin
Studio
Accessory Building
Garage & Apartment
Guest House

WE SOURCE OUR TIMBER IN THE USA

$

Rough Sawn Hemlock

$

Planed Hemlock

$$

Rough Sawn Pine

$$

Planed Pine

$$$

Rough Sawn Douglas Fir

$$$

Planed Douglas Fir

$$$$

Rough Sawn Red Oak

$$$$

Planed White Oak

See options below so you can make this barn your own.

Lean-To’s
• Open Air (partially or completely)
• Enclosed (partially or completely)

Length of Barn
Add or subtract a “Bay or Bent”

Roof Overhangs
• Increase or decrease the size
• Straight Cut or Plumb Cut

Barn Doors
• Sliding Barn Doors
• Swinging Barn Doors
• We will make any size you like

Cupolas
• Decorative
• Functional

Timber Frame Accents
• Add a hood over your man door
• Add a rain guard over your garage doors

Gable Peaks
Widow’s Peak / triangular or boxed

Removal of undesired mid-floor posts
Create a structural Truss
• Hammer Beam Truss
• Scissor Truss
• King Post Truss

Insulation
Any of our kits can be insulated without taking away from the frame’s beauty

Raise or lower the wall heights

Loft Area
• Decrease or increase your loft area size
• Create a catwalk

Change your Timber Species
Hemlock, Pine or Douglas Fir

Change your roof pitch
Steeper or shallower

Flexibility is what Harvest Moon does best; please make sure you get exactly what you want.

Typical Kit Inclusions & Exclusions

What's Included

Included in All Kits
  • Design Plans
    • Architectural elevations & section drawings
    • Joinery detail
    • Foundation plans
    • Engineered and wet-stamped shop drawings including designed foundation / all 50 states
  • Pre-Cut Timber Frame 
    • Species
      • Eastern Hemlock / Eastern White Pine / Douglas Fir / Oak
      • Rough Sawn / full dimension or planed smooth / nominal dimension (1/2” under)
    • Traditional wood joinery with hardwood pegging / no visible metal fasteners
    • Posts / typically 8×8’s
    • Tie Beams / typically 6×8, 8×8, 8×10 depending on span
    • Plate Beams / 8×10, 8×12, 8×14, 8×16 > 8×20 for longer spans
    • Ridge Beams / 8×10, 8×12, 8×14, 8×16 > 8×20 for longer spans
    • Siding Nailers / 4×4’s these are cut on site
    • Knee Braces / typically 4×6 or 4×8 if curved
    • Roof System
      • Traditional Rafter system
        • Rafters / typically 4×10 48” on center or 3×10’s 36” on center
    • Traditional Timber Bent System
      • Bent rafters / typically 8×12’s at each post location with 6×8 or 6×10 cross purlins
  • Fasteners 
    • Hardwood pegs
    • Lag screws
    • Turnbuckles for hammerbeam trusses & scissor trusses (if needed)
  • Siding / optional inclusion can be removed if preferred by the customer 
    • 1×8 (.75” x 6.75”) Eastern White Pine ship-lap boards / kiln dried / random length
    • Cut to fit on site
  • Roof Decking Boards / optional inclusion, and can be removed if preferred by the customer 
    • 2×8 (1.5” x 6.75”) Southern Yellow Pine tongue & groove boards with decorative v-groove edge / kiln dried / application pattern supplied / cut to fit on site
  • Construction Support 
    • Specific builder recommendations provided if desired
    • Pre-building conversations with customers selected builder
    • Phone support prior and during construction
  • Pre-Cut Timber Frame 
    • Loft Support Girders / 8×10, 8×12, 8×14, 8×16 > 8×20 for longer spans 
    • Band Joists / typically 8×8 or 8×10, equally spaced depending on spans 
    • Loft Joists / typically 6×8’s or 6×10’s, depending on spans 
    • Stair Kit / 3×12 stringer & tread material 
  • Loft Flooring Boards / optional inclusion, and can be removed if preferred by the customer 
    • 2×8 (1.5” x 6.75”) Southern Yellow Pine tongue & groove boards with decorative v-groove edge / kiln dried / application pattern supplied / cut to fit on site
  • Site prep, foundation & pressure-treated sill plate
  • Doors & windows typically / A supplier will be recommended so the customer receives exactly what they would like
  • Final roofing material (asphalt, metal, etc.)
  • Mechanicals / HVAC, electric, plumbing, etc.
  • Nails for siding, roof decking, and loft flooring if applicable
  • Interior separation walls
  • Installation of kit
Explore Design Options
All prices shown are for general reference only. Because every timber frame project is custom, final costs may vary based on design, materials, options, location, and site-specific requirements. Please contact us for a detailed quote tailored to your project.
Experienced in Tradition

Hand-Cut Details

Your Dream Barn Starts Here!

Every barn kit we craft is the start of something bigger—family memories, thriving farms, bustling workshops, or joyful venues. Whatever you’re dreaming of, we’ll help you create it, one timber at a time. 
Contact Us to Get Started