US Duct's Sept 2026 DuctQuote Update Accurate BOMs: Corrected counts for flanged pipes and four 3-inch 45-degree elbows. Smoother 3D Modeling: Fixed model loading, height stability, and locking, while cleaning up loading bugs and keeping movement handles active on "Place on Floor." Faster Management: Resolved search issues (including apostrophe searches) and sped up layout order loading.
Single and Double Branches
Single and Double Branches taper as the new line enters the mainline. This is because the new line is bringing in more air. The exit part of the branch (toward the fan) is bigger to accommodate the increase in air. The new line typically enters at 30 or 45 degrees so as to 'merge' into the airflow.
- All branches are 18 gauge or heavier
- Standard at 45°. Available in other degrees.
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