40×42 Monitor Barn House

If you’re dreaming of a spacious, head‑turning structure that blends heritage style with modern functionality, this 40 × 42 Monitor Barn‑House Plan delivers. True to classic monitor design, it features a soaring center aisle flanked by shed wings and capped with a lofty second level—perfect for dramatic vaulted ceilings or an oversized loft. Built on a 40 × 42 foundation (after adding 5 ½‑inch studs and furring for drywall), the frame can be fully enclosed for maximum living area or left partially open to create a generous wrap‑around porch.

Roomy Layout & Time‑Honored Joinery
From post‑to‑post, the timber frame measures 38′‑11¾″ × 40′‑11¾″ and yields roughly 1,680 sq ft on the main floor plus 650 sq ft upstairs. An 8:12 roof pitch crowns the center aisle (24′‑10″ to the peak), while the wings sit at a 4:12 pitch (13′‑3″ high). Built with over 9,000 board feet of heavy timbers, the design showcases abundant mortise‑and‑tenon, spline, and scarf joints—an ideal canvas for showing off serious woodworking skills.

Ready‑to‑Raise Kits for Effortless Assembly
Save weeks of layout and cutting with our Ready‑to‑Raise Kit. Every timber arrives pre‑cut, pre‑drilled, and clearly labeled, so your crew can lift, peg, and tighten the frame with confidence. Detailed instructions and full hardware packages are included—meaning less time on the sawhorses and more time enjoying your new barn home.

Custom Design Services—Tailored to You
Want different dormers, a bigger mudroom, or an entirely open wing for equipment storage? Our in‑house designers can modify any element—from window placement to floor‑plan tweaks—to match your site, climate, and lifestyle. We even supply an architectural set finished out as a four‑bedroom home with vaulted living areas, an expansive kitchen, and a dedicated mudroom, giving you a turnkey starting point that’s easy to personalize.

Why Choose This Monitor Barn Plan?

• Iconic profile with central clerestory light and optional wrap‑around porch

• Flexible interior: enclose both wings or leave one open for outdoor living

• Showcase joinery: traditional splines, scarfs, and pegs throughout

• Ready‑to‑Raise convenience: faster build, precise fit, lower labor costs

• Custom design support: adapt finishes, layout, or structural details to your vision

Bring timeless barn architecture and modern livability together in one unforgettable structure—backed by the convenience of a precision‑cut kit and the freedom of fully customized design.