This 30' x 42' 1-1/2 Story Barn is a spacious and versatile timber frame structure, offering more room than our 24' x 36' version while maintaining the same classic design. With simple mortise and tenon joinery, it’s easy to cut and assemble using just a few common tools.

The first floor features three garage bays at the front, with a convenient man door on the right side. A four-foot knee wall allows for a full second story with generous ceiling heights, providing endless possibilities for storage, a workshop, living space, or more.

This barn is built using 8x8 posts, 8x12 plate beams, 3x14 ridge beams, 8x14 girders, 6x10 and 3x10 joists, 8x10 band joists, 4x10 rafters, 4x6 knee braces, 3x8 sill plate covers, and 4x4 siding nailers, ensuring both strength and durability.

Our comprehensive plan set includes everything you need to start your build with confidence, including 3D renderings, architectural elevations, window and door schedules, floor plans, foundation layout, cross-sections with construction details, material lists, post layouts, wall layouts, girder/joist layout, rafter/plate layout, fastening details, and single beam drawings.

Get started today with this expertly designed plan and bring your dream barn to life

Building Specifications:

Size: 30' x 42'

First Floor Square Footage: 1,260

Second Floor Square Footage: 752

Total Square Footage: 2,012

Frame Specifications:

Joinery: Mortise and Tenon

Posts: 8x8

Plate Beams: 8x12

Girders: 8x14

Rafters: 4x10

Band Joists: 8x10

Joists: 6x10 and 3x10

Knee Braces: 4x6

Siding Nailers: 4x4

Ridge Plate: 3x14

Sill Plate Covers: 3x8

Roof Pitch: 8

1st Floor Wall Height: 12'-1"

2nd Floor Wall Height: 4' Knee Wall               

Plan Cost: $300