Carlson Capitol

Located in Rockford, Illinois, and was founded in 1945 under Capitol Tool & Die Works, Inc. In 1981, Capitol Tool & Die purchased the assets of W.G. Carlson & Sons. The lid support product line came with the purchase of W.G. Carlson. Our name was then changed to DBA Carlson Capitol Manufacturing Company.

Through the years, we have continued to produce quality metal stampings, and lid supports closures to meet the needs of our customers. As a result of the excellent standards of our stampings, we gradually developed the lid support system and found ready acceptance of this quality product. We are now recognized as having the most dependable closure of its kind in the world marketplace.

Carlson Capitol offers a wide variety of production equipment to produce delicate quality stampings from product print to a finished piece. Our facility includes a fully equipped tool room, press capacity from 10-100 tons, and equipment to handle steel coil stock.

Our Mission Statement

Carlson Capitol is a custom manufacturer of lid supports and metal stampings, dedicated to meeting our customers needs and expectations.


  • 703 Series Back Mounted Lid Support (Left and Right hand)
  • 702 Series Side Mounted Lid Supports (Left and Right hand)
  • 900 Series Lid Supports w/ stem, w/tab, & w/o stem or tab

Industries/Market Served:

  • Furniture Industry
  • School Desk Industry
  • Test Fixture Industry
  • Truck Industry
  • Computer Sound Cover Industry

Two basic designs…tailored to fit your needs

Series 700 self-balancing lid closure is available with either statuary bronze or black oxide finish. The standard closure features solid brass enclosed slide. It is also available with hardened moving parts and stainless steel rivets, vital for sound enclosures where they operate many times per hour. You may choose left or right-hand brackets, a variety of spring tensions to suit the application, and back side mounts or side mount hardware.

SPRING COLOR * Inch pounds
Low Limit High Limit
WHITE 110 140
ORANGE 95 125
YELLOW 65 95
BLACK 55 65
MAROON 45 55
GREEN 40 45
BLUE 35 40
GREY 20 35
* NOTE: To find inch-pounds, multiply one-half the distance from front to back times the weight of the lid.

The Series 900 closure is ideal for applications requiring remote lid support. Sturdy construction throughout, the options include a choice of statuary bronze or black oxide finishes and a variety of spring choices for different applications.

Series 900 hidden lid support.

SPRING COLOR * Inch pounds
Low Limit High Limit
RED 80 120
GREY 30 55
* NOTE: To find inch-pounds, multiply one-half the distance from front to back times the weight of the lid.
Two columns

Inch-Pound Calculator


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