Holmes One-Piece Springs

Holmes One-Piece Springs have been manufactured since 1920. Order authentic Holmes One-Piece Springs and accessories for your one-piece garage doors from IDC Spring. Holmes One-Piece Springs are the most trusted brand of one-piece garage door springs in the industry. Our knowledgeable staff can help you with all of your one-piece garage door questions. We carry many one-piece replacement springs for garage doors.

Available Wire Type:

Black Coated

Additional Services:

Custom Labels

Available Wire Sizes :

.148 – .331

Available Outside Diameters:

1 ¼” 1 5/16″ / 1 5/8″ / 2″ / 2 ½” / 2 ¾”

Standard Applications:

One-Piece Tilt Up Garage Doors

Special Applications:

Toy Haulers
- Common Sizes: P728, P528
Specialty Gate Operators:
- Common Sizes: P732, P728, P532, P528, P332, P328

Available End Types

Understanding Part Numbers

Part numbers for one-piece door springs use these codes to indicate End Types, Wire Size, Spring Length and whether a Connector is included.

PART NUMBER	END TYPE	WIRE SIZE	LENGTH	CONNECTOR INCLUDED
P928C	P	9	28"	C
SL728C	SL	7	28"	C
C328C	C	3	28"	C

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