40×42 Timber Frame Horse Barn Plan


SKU: 54885 Category: Tags: , , ,

Introducing our 40x42 Timber Frame Horse Barn—a perfect blend of old-world craftsmanship and modern functionality. Crafted in the classic Monitor Barn style, the barn features traditional mortise and tenon joinery that is both visually stunning and structurally sound. This barn is specifically designed to fit a true 40x42 foundation and is optimized to accommodate 6" walls, ensuring durability and insulation.

The first level of the barn, detailed in our comprehensive architectural drawings, boasts five spacious horse stalls and a well-appointed tack room. These designs provide an efficient, secure environment for both your horses and your equipment. Ascend to the second level, and you'll find a generous storage loft that can also function as an office space or a rustic cabin. This upper floor allows for unparalleled versatility, tailoring the barn to your individual needs.

  • Structural Dimensions: Plates stand at heights of 9'-6" and 19'-7 1/16", with the top of the frame at the center aisle reaching 24'-10 5/16". This offers abundant vertical space, serving diverse functions from stabling to lofted amenities.
  • Roofing Details: The barn features a 4:12 roof pitch on the shed wings and an 8:12 pitch on the center aisle, marrying aesthetics with functional drainage and snow shedding capabilities.
  • Tailored for SIP Roofing: Notably, the barn is designed without overhangs, making it ideal for construction with Structural Insulated Panel (SIP) roofing for superior insulation and energy-efficiency.

Our 40x42 Timber Frame Horse Barn stands as a testament to the harmonious union of style and practicality, setting a new standard for barn construction that will elevate any property.

For more information about this plan please visit its page at 40x42 Timber Frame Horse Barn.  This plan is included in our Plan Bundle.

40x42 Monitor Barn House Plan Interactive 3D Model
40x42 Timber Frame Horse Barn (54885) - Arch Overview
40x42 Timber Frame Horse Barn (54885) - Plan Overview
40x42 Timber Frame Horse Barn (54885) - Piece Overview

40x42 Timber Frame Horse Barn (54885) - Piece Overview

100% Money Back Guarantee for 30-Days

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If, for any reason, you don't like this plan, you can get a full refund anytime within 30 days after your purchase. If you have any issues, just get in touch with our support team and they'll either help you out until you get the results you need or give you a swift refund.

Important Information and Plan Licensing Agreement:

  • 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 measurements before construction.
  • Timber Frame HQ grants you a non-exclusive, non-sub-licensable and non-transferable license to use the plans purchased from the Timber Frame HQ website.
  • This License is personal to you only. You may not use the License for any other purpose except for personal purposes.
  • 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.  Only you may use the License, and such use shall be limited as stated above.
  • All materials provided under this License are owned by Timber Frame HQ. Any License granted under this Agreement shall only convey a non-exclusive, non-sub-licensable, and non-transferable right to use the plans in accordance with the full terms of this Agreement.
  • You are expressly prohibited from creating any derivative works in the plans or permit any other person to create any such derivative works. You are further expressly prohibited from reproducing* the plans in any fashion on any medium, except printing the plans directly from the PDF's you will receive. You may not modify the plans. Your License does not allow others to represent our design work as their own.
    *Please note:  You or someone else can print the plans for planning and construction use.
  • Your License does not allow others to represent our design work as their own.
  • Timber Frame HQ specifically disclaims and warranty that the plans will be error free and will not be responsible for any loss suffered by you because of the plans or otherwise.
  • Any commercial use of the plans is strictly prohibited.


  • 38’-11 ¾” x 40’-11 ¾” wide by xx long from outside of post to outside of post
  • No overhangs on all four sides (intended to be part of SIPs roof)
  • Height to Top of Lower Plate 13’-3 15/16”, upper plate 19’-7 1/16”
  • Height to Peak of Roof 24’-10 15/16” with 4:12 and 8:12 Roof Pitch
  • (5) large stalls and a tack room on the first floor
  • Large loft throughout the second floor of the center aisle
  • 1680 square feet first floor, 680 square feet second floor for a total of 2360 s/f
  • Posts – 8×8
  • Girts – 8×10, 8×12
  • Plates- 6×8, 6×10, 8×10
  • Rafters – 8×10, 8×14
  • Braces – 4×8
  • 66 pages total
  • Construction Drawings – 13 pages (11×17)
  • Architectural Drawings – 5 pages (11×17)
  • Detailed Piece Drawings – 46(11×17)
  • Materials Lists – 2 pages (8 ½ x 11)


We understand every barn is unique, so we offer extensive customization options for our barn kits and plans. Choose from various sizes, roof styles, and finishes to match your style and landscape. Our design team is dedicated to helping you create the perfect pavilion that reflects your vision.  Please fill out the form below to get started.

Timber Kit

30-Day Guarantee

We are so confident you’ll love the plan that we stand behind it 100% with our 30-Day Money-Back Guarantee. You have 30 days to initiate a return with us for any reason.

It’s the best Return and Warranty Policy of any company. You can buy from us with full confidence that we’ll be here to help if something goes wrong or the plan doesn’t work out for you.

Return Policy

Our money-back guarantee gives you 30 days to decide whether this plan is everything you hoped for. You can return it for a full refund if it’s not working out. Here’s how that works:

Email us within 30 days of placing your order. We will refund you the full purchase price of this plan.

And remember, if you have any issues with your plan, even if you’re not sure you want to return it, please contact us personally. We want you and every other Timber Frame HQ customer to have the best possible experience with us.

Please note the 30-day Guarantee is for individual plan purchases and not for our Timber Frame Plan Bundle or other plan bundles for which we do not offer refunds due to the nature of the product.

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