20×20 Pavilion Plan


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This 20×20 King Post Truss Pavilion Plan is a medium-sized frame that has just the right  dimensions for a carport, workshop, or guest cabin. With only two bays, its 400 square feet  is completely open with no center post.  You’ll be proud to show off the spline joints, haunched king posts and pegged mortise and tenons to your friends and family.

  • Truss and purlin system will make a beautiful ceiling in your finished frame.

  • Tie beams stand over 9’ tall, and the ceiling rises up from there to over 17 feet to the top of the kingpost.

  • Generous 2 food overhangs all around for protection from sun and precipitation.

As soon as you make your purchase we will email you links to download the plan set PDFs. The 10 page construction set has all the information you need for a successful project.  We include  several 3D images of the frame, both constructed and disassembled. There are  post and roof plans, and section and detail drawings. The 12-page  piece drawing set has 2D and 3D drawings of all of the timbers, with each cut fully dimensioned.  And we include connector and timber lists so there is no guesswork in buying your materials.

For more information about this plan please visit its shop page at 20×20 King Post Truss Pavilion.  This plan is included in our Plan Bundle.

20x20 Kingpost Truss Pavilion Plan (53423) Interactive 3d Model20x20 King Post Truss Pavilion Plan (53423) - Plan Overview20x20 King Post Truss Pavilion Plan (53423) - Piece Overview

Frequently Asked Questions

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Do you offer the whole kit?

Yes we do! Just fill out the form HERE and will will be in touch soon with more information and pricing.

Can  you modify this plan for me?

Yes, we can modify our plans to the size you need on a custom basis. For more information on the services that we offer and how the process works check out the page HERE.

If that is something that would interest you, fill out the  brief questionnaire HERE or click Get Started Today on the main Design Page from above.

As soon as we get your information and give it a quick review we’ll contact you to schedule a phone meeting.  Please allow a few days for our team to respond.

Before our discussion, we urge you to buy the set of plans that most resembles the alteration that you seek. This will allow you to study the plans thoroughly, think through any other changes or design aspects that you want.

Are your plans engineered?

The plans we offer on our website are not stamped by an engineer. People build our frames all over the country, and in each location, there are different requirements.  Timber species, design loads and values needed are just some of the factors engineers need to take into account in each case.

We do offer engineering services as an add-on to our standard plans. If this is something you are interested in, head HERE and fill out the brief questionnaire.  Armed with that information, we can get our heads into your project before we speak.  That way we are best prepared to answer all of your questions.

As soon as we get your information and give it a quick review we’ll contact you to schedule a meeting.

Have a question for us?

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100% Money Back Guarantee for 30-Days

Purchase With Confidence…It’s Risk Free!

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:

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.

Plan Licensing Agreement:

PLAN PURCHASES AND GRANT OF LICENSEThis Copyright License Agreement (herein “Agreement”) governs your license with regard to the plans provided to you by Timber Frame HQ (“Timber Frame”). Grant of License. Subject to the terms of this Agreement, Timber Frame grants you a non-exclusive, non-sub-licensable and non-transferable license to use the plans purchased from the Timber Frame website or otherwise provided to you by Timber Frame (the “License”). This License is personal to you only. You may not use the License for any other purpose except for personal purposes. Commercial use of the License is strictly prohibited. Provided you abide by the terms of this Agreement, the term of the License will continue in full force and effect. If you are in default or in breach of your obligations under this Agreement this License automatically terminates. Use of License. Only you may use the License, and such use shall be limited as stated above. While Timber Frame HQ provides plans under the License for construction purposes, Timber Frame does not oversee the construction. Your are responsible for assuring the plan meets local codes and regulations. It is your responsibility to obtain any and all structural analysis, engineering, and specifications that may be required in the municipality in which it is to be built. You are to verify all lot conditions and measurements before construction. You are responsible for additional expenses incurred in order to meet local code and engineering requirements. 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 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.Ownership. 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 terms of this Agreement. Fees. The fee for the license granted under this Agreement is the price paid when you purchase the plans (the “License Fee”). Termination of LicenseThis Agreement and the License granted hereunder will terminate immediately upon:(a)Violation. The violation or breach of any term of this Agreement by you or any other person you allow to use your License. (b)Attempted Assignment. Your attempted assignment, sublicense, or transfer of this Agreement or any license granted under this Agreement.Upon the termination or expiration of this you must immediately cease using the plans. Termination will not entitle you to any refund of the License Fees. You will remain liable for your violations or breaches of this Agreement that occurred before the termination of this Agreement. No Derivative Works. No Reproduction. No Modification. 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. You may not modify the plans. Your License does not allow others to represent our design work as their own. Any commercial use of the plans is strictly prohibited. Reservation of Rights. 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.DISCLAIMER OF WARRANTIES. EXCEPT FOR TIMBER FRAME HQ’S WARRANTIES THAT TIMBER FRAME HQ POSSESSES THE RIGHT TO LICENSE THE PLANS TO THE YOU AND THAT THE PLANS WILL NOT INFRINGE UPON ANY OTHER PERSON’S INTELLECTUAL PROPERTY RIGHTS IN EXISTENCE AS OF THE DATE OF THE EFFECTIVE DATE OF THIS AGREEMENT, WHICH IS THE LATER DATE SHOWN BELOW, TIMBER FRAME HQ IS PROVIDING THE PLANS “AS IS” WITHOUT ANY WARRANTY OR CONDITION OF ANY KIND, EXPRESS OR IMPLIED, AND TIMBER FRAME HQ EXPRESSLY DISCLAIMS ALL WARRANTIES, INCLUDING ANY WARRANTY OF DESIGN, FITNESS FOR A PARTICULAR PURPOSE, OR MERCHANTABILITY. IN ADDITION, TIMBER FRAME HQ SPECIFICALLY DISCLAIMS ANY WARRANTY THAT THE PLANS WILL BE ERROR FREE AND TIMBER FRAME WILL NOT BE RESPONSIBLE FOR ANY LOSS SUFFERED BY YOU BECAUSE OF THE PLANS OR OTHERWISE.



  • 20’ wide by 20’ long outside of post to outside of post
  • 2’ overhangs on all four sides
  • Height to Top of Collar 11’-7 7/16” 
  • Height to Top of  Ridge  17-10 5/8” with 8:12  Roof Pitch


  • Posts –8×8
  • Chords – 8×10
  • Ridge –8×10
  • Tie Beams – 8×8
  • Braces – 4×8
  • Total of 3168.1 Board Feet


  • 24 pages total
  • Construction Drawings – 10 pages (11×17)
  • Detailed Piece Drawings – 12 pages (11×17)
  • Materials Lists – 2 pages (8 1/2×11)

30-Day Guarantee

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

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

Return Policy

Our money-back guarantee gives you 30 days to decide whether this plan is everything you hoped for. If for some reason it’s not working out, you can return it for a full refund. 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 whatsoever with your plan, even if you’re not sure you want to return it, please get in touch with 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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