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28×20 Timber Frame Saltbox

28x20 Saltbox Timber Frame Plan

This 28×20 timber frame saltbox is designed with common trusses and collar ties, making cutting and raising a bit easier for a good-size frame. The saltbox style creates a ceiling on one side that soars to 19’-6” if you leave the collar ties exposed, creating a wonderful high-volume space. The plan is designed with a loft over the other half of the floor space, creating an area you can use for a bedroom, office, or any number of uses.

The saltbox style of house is a strong and simple one that has been seen in this country since the 1,650s. 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 the back, creating a two-story structure on one side.

This 28×20 timber frame saltbox has 560 square feet on the ground floor and 280 square feet on the second floor, giving you 840 square feet of versatile space. Use this for a barn with a hay loft, a cabin in the woods, or a garage with a workshop loft!

  • Drawings include fully dimensioned plans, elevations, and sections, as well as detailed cut drawings of every timber in the structure.
  • Three-dimensional renderings to help you visualize the finished pieces.
  • Plan set consists of 35 pages of thoroughly detailed drawings, including a timber list and fastener schedule
  • Plans are formatted to 8 ½”x 11”, ready for instant PDF download
  • 100% Money Back Guarantee for 30-Days

Check out this plan in our shop: 28×20 Saltbox Plan.

28x20 Saltbox Plan Overview

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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.

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44 thoughts on “28×20 Timber Frame Saltbox”

  1. This website is a great resource! Glad I discovered it. Can you tell me the pitch of the saltbox plan, or if it is variable?


    –Bruce Gordon

  2. Hi Brice,

    I’m looking for a cabin plan and am comparing this with your 20×24 Queen Post Plan with Loft.
    Can you please give a rough estimate of differences in build cost and ease of building?
    I’m in Australia – have you had any experience using the eucalyptus timbers?
    Great website!


  3. I have no experience with the building cost in Australia or eucalyptus timbers. There is an article in the Timber Framing Journal Number 74 about a gentleman Rob Hadden that was building his own timber frame. I would search out any timber framers in your area (it may be a big area) and talk to them. I bet they are more than happy to share their knowledge.

  4. Hard to say exactly. Depends largely on the species of wood that you choose and where you get it from. Sorry to be vague but would need more info to help you out.

  5. Can you advise your concept for footing this plan and transferring the weight load of 9 posts to ground? Concrete footers to below frost line or…?

  6. I have a stock of 4×6 and 4×10 clear douglas fir in lengths up to 18 feet. Would these be usable in this plan?

  7. Do you have any photos of the cabin or timber frame finished out? I am a home builder in Oklahoma and am planning on building some cabins for rentals and wondering how the finish cabin looks . We would need to add a porch on one side for sure. Thanks Dale

  8. It’s always desirable to have some overhang to protect wood siding… How can it be added to this salt box frame?

  9. Looking for plans for a timber frame car port
    24×20 for storing my pontoon boat in during the winter months and useing it as a party pavilion in the summer/early fall .
    My thought is to build it near the lake and simply pull the pontoon in during the winter
    20 ft wide and 24 long with an unobstructed drive through
    Can you help
    Plans would be used for both building and acquiring building permits
    Mike Dagelen

  10. Graham Holland

    Can you please tell me what the height of the loft section floor to the rafter tie (effectively the ceiling height of the loft) and the loft section floor to the bottom of the plate on the taller side?

    Are the plans for traditional joinery or steel fixings?

    Many thanks, big fan here in the UK

  11. Katrina Williams

    Graham, it is 7′-1.5″ from the loft floor to the bottom of the rafter tie. It is 6′-1.5″ from the loft floor to the TOP of the plate (the plate is an 8×10). The plans are for traditional joinery. Thank you for your support!

  12. Do you have any “finished” pics of salt box design
    And are there multiple ways to anchor posts in your design plans?

  13. Ahoy!
    I am hoping to build in Kauai in an area that requires houses to be on stilts. Can this plan be built on an elevated “platform” to abide by local codes?

  14. I looking for a 13 x20, loft on house side and a hip on right side towards neighbors house , overhangs as long as possible work sidewalk all the way around , dormer for light on south side in open area, not loft side , and like to see former on both brands south side

  15. Im looking for a 24×30 plan small house with an upstairs loft … that looks similar to what you have here

  16. What is the first and loft ceiling heights at? Id like to modify the roof to allow for an overhang but dont want my overhang coming down too low and obstructing my views as I plan to use the 19’6″ side as my south facing window wall.

  17. Katrina Williams

    We do take on custom projects. Check out our page HERE describing what we offer and the process of our custom design services.

  18. Always admired timber frame steuctures and thinking of a mountain getaway constructed of timberframe.

  19. I am interested in the Saltbox design, but the space where I am considering it for is smaller. Would it be possible to scale this design back for a foot print of 20’x14′ ? Also depending on the height of the taller side, possibly altering that dimension as well.

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