DIY Gothic Arch Barn Pavilion Plans: 20x30 Timber Porch, Studio, PDF

DIY gothic arch barn plans for a 20x30 barn pavilion with laminated plywood rib trusses, an open timber porch and a studio. PDF plan with rib templates.

- Product: Wrenfield Gothic Arch Barn Pavilion 20' x 30' building plan
- Format: Digital PDF download
- Pages: 47
- Paper Size: US Letter
- Units: Imperial (feet-inches, 1/16" precision); cut list also shows mm
- Dimensions: 20' x 30' footprint, 600 sq ft, about 21' 2" tall at the peak
- Layout: 9' 8" open timber porch + one studio room 19' 5" x 19' 5" inside (about 375 sq ft)
- Roof: Pointed gothic arch on 16 laminated plywood rib trusses at 24" on center, with a 7/12 flared eave, architectural shingles and a ridge vent
- Ceiling: Exposed tie beams at 8' 1-1/8", with an optional gothic vault lined on the ribs up to about 20' 10"
- Style: Slate-blue board-and-batten barn with white curved rake bands, white trim and cedar-stained timbers
- Skill Level: Intermediate to Advanced (curved rib work)
- Includes: Floor plan, four elevations, arch truss section, gable framing, full rib templates, cutting templates, wall framing, shopping list, master cut list, cut diagrams, 17 steps, 7 renderings
- Best For: DIY builders who want a distinctive backyard barn pavilion with a covered porch and a studio room
- Delivery: Instant PDF download after purchase, no physical item shipped

## What's Included in This Gothic Arch Barn Pavilion Plan

This 20x30 gothic arch barn pavilion puts one pointed, curved roof over two spaces: an open timber porch at the front and a one-room studio at the back. The roof flares out at the eaves in a bell-cast line, and the exposed arch truss stays visible over the porch. The porch is framed with six 6x6 posts, built-up beams and knee braces.

The plan covers the whole build, from the slab to the trim:

- Floor plan with anchor bolt and post base layout
- Front, back and both side elevations with all key heights
- Gothic arch truss section with a full ordinate table for the curve
- Gable wall framing with stud lengths and top-cut angles for both gables
- Full-size rib templates with station-by-station layout data
- Cutting templates for ties, king and queen posts, knee braces and plywood gussets
- Wall framing drawings for the side walls and the 2x6 end walls
- Shopping list grouped by material, with an estimated material budget
- Master cut list with part IDs, cut diagrams and rib sheet layouts
- 17 illustrated step-by-step pages, from site layout to trim
- Finishing and care notes, plus 7 finished renderings

## How the Gothic Arch Trusses Are Built

Each half of the arch is a 296" radius curve that starts at 65 degrees at the wall and meets the other half at a 30 degree pointed peak. The ribs are two layers of 3/4" plywood laminated with staggered joints, cut from one master template, so all 16 trusses come out identical. A 2x6 tie, a king post and two queen posts complete each truss.

## File Format, Paper Size and Units

The plan is a 47-page PDF sized for US Letter paper. All dimensions are imperial, in inches and feet-inches to 1/16", measured from the top of the slab. The cut list adds a millimeter column, and part IDs match every drawing and step page.

## Who This Gothic Barn Plan Is For

This gothic barn plan suits intermediate to advanced DIY builders, because the curved ribs take careful layout. Plan on 2 to 3 people and about 9 to 11 weekends of work after the slab cures. The plan delivers a weather-tight shell; insulation, interior finishes, electrical and plumbing follow your local code.

## How to Use Your PDF Plan

1. Complete your purchase on the KRMPLANS store.
2. Download the PDF from the link on the confirmation page or in your email.
3. Print it on US Letter paper or open it on a tablet or computer.
4. Follow the shopping list, rib templates, cut list and 17 steps to build your barn.

## Digital Product Notice

This is a digital download. No physical item is shipped. The PDF is available to download right after purchase. Renderings show furniture and interior finishes for inspiration only; they are not part of the plan.

## Terms of Use

This plan is for personal use only. You may build the structure for yourself, but sharing, reselling or redistributing the PDF file is not allowed. The plan is a design guide, not a stamped engineering document, so check your local building codes before you build.

## Frequently Asked Questions

### How do you build a gothic arch roof?

In this plan you build a gothic arch roof from laminated plywood ribs traced off a full-size master template, then join each pair of ribs with a 2x6 tie, a king post and queen posts. The step pages walk through cutting, gluing and raising all 16 trusses.

### Can I use solid lumber instead of plywood for the gothic arch ribs?

Yes, you can cut the same gothic arch rib templates from 2x12 boards and join the two layers with the same stagger. The ribs are heavier, but there is no plywood waste.

### How much does it cost to build a 20x30 gothic arch barn pavilion?

The plan estimates materials for this 20x30 gothic arch barn pavilion at about $19,500 to $23,500 at typical US big-box prices. Tax, delivery and regional price changes are not included.

### Can I enclose the porch of this gothic barn later?

Yes, the porch beams of this gothic barn sit at the same height as the wall plates, so you can frame walls between the posts later. Check your permit before you enclose it.

### How do I download the PDF after purchase?

You can download the PDF right after purchase from the link on the order confirmation page or in your confirmation email. No physical item is shipped.

## More Building Plans from KRMPLANS

Browse the KRMPLANS store for more DIY building plans, including barn pavilions, cabins, coops and backyard structures. If you have a question about this gothic arch barn plan, send us a message and we will be happy to help.