Drop-In Spring Unit
A coil spring assembly (much like a mattress coil unit) used in upholstery to simulate an eight-way-hand-tied feel and support.
Related Links
Spring Unit Drop Seat Cushions – How To Reupholster/Fix Original Spring Cushion
Rigid Bar Drop-In Construction
How Your Leather Sofa Is Made-Leathershoppes.com
Drop-In Seat – Spring Creek
Related Videos
Traditional Drop In Seat Part 1
How To Apply Leather To A Drop In Seat
Traditional Drop In Seat Part 2
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Traditional Drop In Seat Part 1
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How To Apply Leather To A Drop In Seat
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Traditional Drop In Seat Part 2