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28x20 Saltbox Timber Frame Plan
28x20 Saltbox Timber Frame Plan
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28x20 Saltbox Plan Overview
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28x20 Saltbox Birdseye View
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28×20 Saltbox Plan


This 28×20 Saltbox plan reaches back in history to give you one amazing structure! The strong and simple saltbox style of house has been seen in this country since the 1650’s. It’s a design with two stories in front and one in back. The roof pitch is short and high in front, and long and low in back, creating a two-story structure on one side.

This timber frame is fashioned with common trusses and collar ties, which simplifies the cutting and raising process. The plan is designed with a loft over half of the floor space. So you can have a ceiling on one side that soars to 19’-6” if you leave the collar ties exposed, giving you a great feeling of open space. Over the other half of the space, the second-floor system creates an area you can use for a bedroom, office or any number of uses.

This 28×20 saltbox plan has 560 square feet on the ground floor and 280 square feet on the second floor, which gives you a total of 840 square feet to use as a small cabin, or spacious artist’s studio, or even a barn with hay loft!

The plan set consists of 35 pages of thoroughly detailed drawings. We include a timber list and fastener schedule (and you can purchase the fasteners right here at Timber Frame HQ!)  The drawings include fully dimensioned plans, elevations, and sections, as well as detailed cut drawings of every timber. We also include 3D renderings to help you visualize the finished product. And the plan set is formatted to 8 ½”x 11”, ready for instant download and printing from your home or neighborhood copy shop.

Important Information:

Timber Frame HQ provides plans for construction purposes but does not oversee the construction. The plan purchaser is responsible for assuring the plan meets local codes and regulations. It is the responsibility of the plan purchaser to obtain any and all structural analysis, engineering, and specifications that may be required in the municipality in which it is to be built. Plan purchaser is to verify all lot conditions and measurements before construction. Purchaser is responsible for additional expenses incurred in order to meet local code and engineering requirements.

Customer understands that the following conditions in your specific area may require additional engineering:

  1. Wind / hurricane / tornado
  2. Seismic / earthquake
  3. Heavy snow
  4. Flood potential
  5. Soil instability
  6. Timber Frame Engineering

Customer understands that HVAC, Plumbing & Electrical will not be included in all plans.

When you purchase a set of plans, you are purchasing a limited copyright license for a design giving you the right to build that structure one time at your location. Your copyright license was granted when you paid the purchase fee. You do not have the right to build the design a second time unless you have a signed agreement with Timber Frame HQ. Please note that copyright law protects “derivative works” the same as it protects the original design. That means that making some changes doesn’t make it a new design. We do not allow modifications of our designs by others, without permission. Your copyright license does not allow another professional to represent our design work as their own.

Timber Frame HQ retains all common law, statutory and other reserved rights, including the copyright. This applies even when you have participated in the development of the design to a significant degree.

Customer Reviews

Based on 2 reviews
john k
Clear and detailed framing plan

I needed a framing plan for an event space. The 20 x 28 salt box cabin was perfect. Thanks for the start.

Great plans

The plans are easy to understand and the website fills in the blank.

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