Need More Headroom? How Raised Cord Trusses Solve RV Storage Issues

This video from Attica Lumber showcases a popular 24x40x12 pole barn build, highlighting specific design choices and materials used for a customer who needed storage for an RV. https://www.atticalumber.com

Key Features & Construction Details:

Dimensions: The pole barn is 24 feet wide by 40 feet long with 12-foot eaves [01:42].

Roofing & Moisture Control:

The roof uses “drip stop metal” which comes with a pre-applied, fuzzy felt-like material [00:24].
This material has a 20-year warranty and prevents condensation, eliminating the need for traditional felt paper rolls [00:30].
The roof color is a light pattern gray [00:52].

Truss Design for Headroom:

To accommodate the owner’s RV, the builder used “raised cord” or scissor trusses for the first few sections [02:02].
These trusses feature a 2×6 bottom cord and a 2×4 top cord, engineered in Chicago, to provide extra interior height [02:13].
The back section of the barn switches to a standard pitch truss [02:29].

Framing & Structural Support:

Posts: The build utilizes 4×6 intermediate posts spaced 8 feet on center [02:42]. Stronger 6×6 posts are used on the corners for added stability and strength [02:52].
Headers: A yellow pine double top beam header supports the trusses [00:14], which are spaced 4 feet on center [03:15].
Wall Girts: 2×4 wall girts made of 1650 MSR lumber are used for horizontal framing [02:35].
Bracing: 2×6 boards are run diagonally to prevent the building from racking [03:04].

Doors & Windows:

A large 12×12 overhead door will be installed on the gable side [00:46].
Anderson Silverline windows are placed high on the sidewall (around 7 feet up) to provide privacy while still allowing light in [01:20].