20×30 Gambrel Barn Plans
with 10×20 lean-to

These 20×30 Gambrel Barn Plans are a great choice for the homesteader or farmer who wants a little more room in the loft for feed and tool storage. This barn would also be a great choice for a barn home or barndominum, with an optional lean-to for a covered porch.

There are 4 bents and 3 bays in this barn. With 19′ of clear span there is ample room to move around and work. There is 1200 square feet including the loft and it will only take up 600 square feet of space on your property, making this a perfect barn for a small acreage farm or a beautiful garage to house your tractors or classic cars.

This gambrel barn is the right size for a few cows or a small herd of goats or sheep. There is ample room for a milking stand, feed storage, and bedding.

This barn is also the perfect size and style for a wedding barn. Can you imagine what this barn might look like with fairy lights strung across its beams? The upper loft is perfect for bride and groom changing rooms or even a honeymoon suite.

Check out the video below for a photo tour of this barn after construction! Can you picture this barn on your property?

Want to see what barns are being built right now? Check our our facebook group to see real people with stories building from our plans!

Looking for a different style? Check out the 20×30 sugar shack barn plans!

Like the style but need more space? Check out the 40×60 Gambrel barn plans!

Check out what a similar sized king post pavvillion might look like here.

What’s Included With Your Barn Plans?

When you purchase this barn design, you’re not just getting a set of blueprints – you’re getting a complete barn-building system designed to save you time, money, and frustration. Here’s everything included with your plans:

Complete Construction Plans

These are full construction plans that you can build this barn from – not simplified sketches or concept drawings. Your high-resolution PDF plans include 10 or more detailed pages featuring:

• Cover page with complete load specifications and design details
• Foundation layout showing pier locations and dimensions
• Bent details (2-3 pages) – the major framework that forms the skeleton of your barn
• Material cut lists so you know EXACTLY what size timbers you need and how many of each timber to buy – no wasted trips to the lumberyard, and no guessing if you got the right stuff!
• Assembly diagrams with step-by-step visual guides
• Hardware specifications detailing every plate, bracket, and fastener required

Interactive 3D CAD Models

Visualize your barn before you build! CAD-designed 3D models help you see what your barn will look like already built. Get close-up details of your project that no 2D paper plans can possibly duplicate. Rotate, zoom, and explore every angle to understand how your barn comes together.

Complete Construction E-Guide: “How to Build Your Post and Beam Barn”

This comprehensive ebook takes you through the whole construction process step by step, including:

• Sourcing local timbers and finding affordable lumber in your area
• Site preparation and foundation requirements
• Finding the right contractors (if you need professional help for specific tasks)
• Tool requirements and equipment you’ll need
• Assembly techniques for post and beam construction
• Installing girts and purlins for structural integrity
• Board and batten siding installation methods
• Loft decking and roof sheathing best practices
• Finishing touches including painting or sealing your barn

Exclusive BarnGeeks Community Access

Join our private Facebook group where you’ll get advice from those who have already finished their barns. Ask questions from members who have been exactly where you are now, and when the time comes, give advice to those just starting their barn-building journey. This community is invaluable for troubleshooting, sharing tips, and staying motivated throughout your project.

Step-by-Step Video Tutorials

Access our members-only video library featuring secret tricks to save you time, frustration, and most importantly, money! These hands-on demonstrations show you exactly how to tackle each phase of construction with confidence.

Email Support

Get personalized answers to your specific questions. Whether you’re troubleshooting a construction challenge or need clarification on the plans, we’re here to help ensure your project succeeds.

Designed for Local Lumber & DIY Construction

These post and beam barn plans are specifically designed to utilize full-size rough cut lumber from your local sawmill or even timber from your own property. Unlike conventional plans that require expensive, standardized materials, these designs:

• Work with non-standard lumber dimensions
• Accommodate locally sourced timber species
• Feature simple joinery using modern timber framing screws and steel plates
• Require only basic tools: skill saw, drill, auger bit, and wrench

If you can cut simple angles with a skill saw, drill holes with an auger bit, and twist a wrench, you can build your own post and beam barn with these plans.

Print As Many Copies As You Need

Your digital plans can be printed as many times as necessary. Print a set for yourself, your builder, your building inspector, and whoever else needs a copy – no additional fees or restrictions.

Traditional Design Meets Modern Engineering

These barn plans blend the timeless beauty of traditional barn architecture with modern structural engineering. You get the classic look of barns built centuries ago, with the strength and reliability of contemporary construction methods.

Why Post and Beam Construction?

Post and beam barns are FAR superior to conventional pole barns in every way:

• Stronger structure with heavy timber framework
• More usable space with full lofts that pole barns can’t offer
• Flexible layout – no load-bearing walls to work around
• Timeless beauty that increases property value
• Built to last – timber frame buildings have been in use for over 1,000 years!

Money-Saving Guarantee

Architects typically charge $2,000-$5,000 for custom barn plans. Our plans give you professional-quality designs at a fraction of that cost, saving you thousands before you even break ground.

Ready to start building your dream barn? Select the option below to get instant access to your complete barn plan package and join hundreds of satisfied builders who’ve successfully completed their projects using our plans.

Become a Member to Download These Plans now!

Hardware Pricing

Read More about Post and Beam Barn Kits below.

How to build the 20x30 sugar Shack for under $12k!