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30×40 Post and Beam Barn

Big Space. Simple Joinery. Boundless Potential.

Whether you’re envisioning a barndominium, workshop, or a heritage-inspired barn, the 30x40 Post and Beam Barn offers the scale and structure to make it happen—without overcomplicating your build. With 2,400 square feet of enclosed space spread across two full floors, this frame is as versatile as it is impressive.

Structure Highlights:

  • Main Floor: 1,200 sq ft of open, flexible space
  • Second Floor: Another 1,200 sq ft with soaring ceilings and gable window potential
  • Total Enclosed Area: 2,400 sq ft
  • Ceiling Heights: Lower girt at over 9’, top plate 8’ above that, and second-floor ceilings climbing another 9’ for dramatic vertical volume
  • Gable End Window Ready: Queen post framing allows large apertures for natural light and stunning views
  • Open Stair Options: Floor system can be adapted for stairwell placement to suit your layout needs

Built with straightforward construction in mind, this barn uses post and beam techniques that skip the complexity of traditional mortise and tenon joinery. Instead, it’s framed using Timberlinx connectors and structural screws, along with shallow housings for knee braces and scarf joints for extended top plates—giving you authentic timber frame character without the learning curve.

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This plan provides detailed, easy-to-follow blueprints, perfect for anyone building their own timber frame.

Buy Plans $197

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What's Included

Design and Engineering

Timber Frame Design and Engineering Services

We take immense pride in our team of exceptionally skilled timber frame designers. Each member is not only equipped with the finest tools but also possesses a profound understanding of how different materials intricately come together to realize your vision. This deep expertise in both design and material synergy is crucial in crafting the ideal timber frame structure tailored just for you.

Our commitment to excellence extends to our engineering team, specialists in timber frame structures, many of whom hold doctorates in their field. Sharing your passion for timber framing, our engineers work closely with you, ensuring that every aspect of the frame's design is customized to suit your specific location. This collaborative process guarantees that you receive all necessary documentation for permits, including detailed engineered reaction diagrams, ensuring your construction proceeds smoothly and stays on schedule.

The culmination of this meticulous process is a comprehensive set of construction drawings. These detailed plans not only provide a clear guide for your kit's assembly but also include a complete list of timbers and fasteners, serving as an invaluable reference throughout the installation of your frame. Our goal is to ensure that every step, from initial design to final construction, is seamless, transparent, and perfectly aligned with your project's needs.

Timbers, Joinery and Connections

Timber Frame Joinery and Connections Offered

After we've collaboratively chosen the ideal wood type for your project, we proceed to source the highest quality timber through our network of trusted mills. Ensuring that every piece meets our exacting standards, we then transport the timber to one of our cutting facilities. There, the joinery is meticulously crafted using CNC machines. Every joint, drilling, mortise, and tenon is cut with precision, adhering to tight tolerances for impeccable quality and fit.

Following the cutting process, all timbers are systematically labeled according to the production numbers assigned during the creation of your model and plans. This meticulous process ensures that every component of your timber frame is prepared with the utmost attention to detail, ready for the next phase of your project.

Included with your package are all the pegs, fasteners, screws, and connectors you need to put your ready-to-raise frame together. You will also get a detailed list for you to refer to while raising your frame.

Shipping and Delivery

Ready To Raise™ Timber Frame Kit Delivery

We carefully package and securely transport your timber frame and all necessary hardware directly to your location. In sync with you, we'll coordinate the delivery schedule, ensuring that we agree on an approximate time on the designated date. To facilitate a smooth and safe unloading process, it's important to have equipment on hand capable of lifting up to 5,000 lbs. Once everything is delivered and in place, the exciting phase of bringing your project to life begins.

Project Support

Timber Frame Project Manager

At Timber Frame HQ, we embrace the philosophy of 'One Person, One Project.' This approach ensures that each client is paired with a dedicated Project Manager who will be your point of contact throughout the entire project. We believe in offering personalized, consistent support to make your journey with us as smooth and fulfilling as possible.

Our commitment extends beyond just providing exceptional timber frames. As your construction resource, we'll be by your side for the duration of your project, ready to offer expert advice, support, and answers to all your queries. Our goal is to make the process of raising your timber frame not just successful, but also a deeply rewarding experience.

We invite you to visit our '
About Us' page to learn more about our values, our team, and how we can bring your timber framing vision to life with a touch of personal care and professional excellence.

View Our Interactive 3d Model 

30x40 Post and Beam Barn Plan (53885) Interactive 3d Model

We understand that every project is unique, so we offer extensive customization options for our plans and kits. 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 plan that reflects your vision. 

Here's How You Can Get Started:

  • Phone: Call us at 888-552-9379 (9–5, M–F) to speak with one of our experts.
  • Email: Send your questions to projects@timberframehq.com, and we will respond within two business days
  • Online Form: Please complete the form below, and we will respond promptly.

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16 thoughts on “30×40 Post and Beam Barn”

  1. Could you raise the lower floor on this plan by 1-2’ without having to re-engineer structural integrity and wind ratings?

  2. On the 3D rendering I’m having a hard time understanding the location of the pegs, especially on the posts and lack thereof on the corner braces. Is that an inadvertent error that is different on the plans?

  3. Hey there. I’m interested in purchasing plans. But we live in Australia. Do you guys do these plans in metric as well?

  4. Ronda Sue Yeatman

    Spiral staircase, 1 bedroom upstairs with over looking inside balcony. Giant loft window 2 pane open outward on opposite with hoist,30×40 with barn style roof

  5. Sounds like you would like to customize this plans a little. We are happy to do that. We will reach-out to you directly via email about your project.

  6. Does this kit only include naked framing materials? Or is sheathing/roofing included to dry it in?

  7. We can include those other options for you. The pricing for the kit is just for the timber frame.

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