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The best way to cut long straight lines?

strongerFaster

New member
Joined
Jan 7, 2026
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I’m making pleated curtains and have to cut some massive rectangles (10 feet wide by 14 feet!). I need to trim about 12 inches off each side, but I don’t have someone to help me, and can't easily pull a thread to follow the grain
What’s the secret to keeping a cut that long perfectly straight?
I’m worried about ending up with wonky edges once they're hanging. should I be using a chalk line or a giant straight edge, or is there a better pro trick I should know?
 
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