The bridge is used between the elbows. It is pre-shrunk in both ends, and designed to be cut.
The bridge is used between the elbows. It is pre-shrunk in both ends meaning these 3' sections are made to be cut. So one bridge gives you two pieces or bridges to work with. The pdf 'bridge lengths' is a support, and shows you roughly what lengths you will need. Measuring the distance between the elbows onsite is always the way to go. Remember to add 4" to the distance between the elbows before you cut.
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