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.
T-Branches
T-branches are called Ts because the line enters the main line at 90 degrees—forming a 'T'—and are often used in positive systems where the air is being pushed.
Ts are not recommended for negative systems as they increase static pressure to the point where air can slide by the sideline and only pull from the straight end where the flow is "easier."
All branches are 18 gauge or heavier.
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