This video series explains the basic method for calculating pipe cut lengths in an easy-to-understand format, divided into two parts.
You’re now watching Part 2: “T-branch connections” Edition.
A short excerpt version of the video is also available. Please note that some explanations have been omitted in the short version, so if you’d like a quick overview, feel free to check it out. The storyline is also slightly different, so if you find the short version interesting or want to learn more, we highly recommend watching the full video as well.
Part 1: Elbow Offset
- How to measure center-to-center distance
- What is “extra length”?
Part2: Tee Branching
- How to calculate vertical pipe lengths
- Using a plumb bob or laser for accurate measurement

In the latter part of both videos, we introduce an easy and accurate way to calculate pipe cut lengths using the “Haikan Pipit” app, which quickly determines dimensions based on the combination of fittings. Don’t miss it!
Full Video
This is the complete video for the second part: “T-Branch Connections”.
00:00 – Introduction to this video and overview of Part 1
00:16 – A common scene (measuring by placing fittings)
00:28 – Vertical piping
00:57 – How to measure using Haikan Pipit
01:10 – Case with reducing LT
01:35 – How to measure with Haikan Pipit (with reducer)
01:45 – Vertical piping from ceiling (using a plumb line for measurement)
02:11 – How to use a laser level
03:06 – Ending (recap of Part 1 and app introduction)
Short Video
This is a condensed and edited version of the full video. For more details, be sure to watch the full version.