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20X20 HENNIN POST & BEAM OPEN PLAN KIT

The original Hennin Post & Beam. In 1973, Pat and Patsy designed and built this house with timbers hewn on site using traditional all-wood joinery. Since then we have seen this frame used for dry storage, a starter cottage on vacant land, workshop, bedroom addition, family room addition, two-horse barn, first home, two car garage with game room, or guest house (for the guest who you can tolerate for up to a week at a time). Expand this frame in 10-ft increments.

20X20 PRICING*

We have removed the detailed prices of SIPs because of the volatility of current market. We will provide prices on a per-project basis until the market stabilizes. Please don't hesitate to contact us with questions. 

Using a special “tusk” tenon, this frame features a 20’ clear span with no interior posts for maximum design flexibility. The kneewall on the second floor is two feet; the 12/12 roof pitch.                                                                                     

Each “bent” adds a 10’x20’ space. Dormers and shed additions are easy to add. The kneewall height is also adjustable based on your needs. The possibilites are endless. Estimate for adding an additional 10 foot bent is decribed below.

Our kits exceed the R-value requirements of the 2012 International Energy Conservation Code (IECC). The details of the structure as well as the insulation can be modified to meet your project, site and budget needs. Remember, most of the timber frames that we build are custom designed!

 
20x20 Pricing
 
20'x20'pre-cut kit
 
$25,200
 
kit raising
 
$3,800
 
SIP** Enclosure
 
$33,200
 
Install SIPs
 
9,800
 
20'x20' Subtotal
 
$72,000
       
 
Make this building longer by 10-ft increments
  additional bent   11,200
  bent raising   2,400
  SIP** Enclosure   $15,600
  Install SIPs   $4,200
  Add'l Bent Subtotal   $33,400
  20'x30' Subtotal   $105,400
NOTES

*All Pricing subject to change without notice. Prices are FOB Woolwich, ME; shipping is not included. Included, but not shown, are second floor boards: planed nominal 2-in V-match T&G with rough opening for stairs.

Timber Frame Specs: posts: up to 12-ft - knee wall: 2-ft - ceiling height: up to 10-ft - roof pitch: 12/12

**Panel Specs: 5-1/2-in R-25 wall, 11-1/4-in R-45 roof EPS foam-core panels

The Wood: We can build these frames with nearly any wood species. Prices above are for Eastern Hemlock or Eastern White Pine. Green timbers are planed, chamfered, and oiled to protect the surface, reduce checking, and slow the drying process. All timbers are planed full dimension unless otherwise specified.

Kits include all pegs and wedges, as well as nominal 2-inch tongue and groove decking on the second floor.

Curved or straight braces are available per your specification.