Use the charts below to select the correct Bommer double acting spring hinge series, size, and quantity for your door. You'll need to know your door's weight, width, and thickness to find the right match.


Series 1

Bommer 3029 — Mortise Type

Available in 3"–8". Door flange mortised into edge of door. Jamb flange surface applied to jamb. For ¾" to 2" thick doors.

Model 2 Hinges — Weight 2 Hinges — Width 3 Hinges — Weight 3 Hinges — Width Door Thickness Min. Height
3029-3 35 lbs 2'-0" 39 lbs 2'-8" ¾" – 1" 5'-0"
3029-4 60 lbs 2'-4" 75 lbs 3'-0" ⅞" – 1¼" 6'-8"
3029-5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛" – 1½" 6'-8"
CL3029-5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛" – 1½" 6'-8"
3029-6 75 lbs 2'-8" 107 lbs 3'-0" 1¼" – 1¾" 7'-0"
CL3029-6 75 lbs 2'-8" 107 lbs 3'-0" 1¼" – 1¾" 7'-0"
3029-7 82 lbs 3'-0" 120 lbs 3'-6" 1⅜" – 2" 7'-0"
CL3029-7 82 lbs 3'-0" 120 lbs 3'-6" 1⅜" – 2" 7'-0"
3029-8 103 lbs 3'-6" 143 lbs 4'-0" 1½" – 2" 7'-0"

Note: Do not use on doors with a beveled hinge edge.


Series 2

Bommer 3029 — Templated Hollow Metal Doors

Available in 5", 6", and 8". Door flange mortised into edge of door. Jamb flange surface applied to jamb. For 1⅜" or 1¾" thick hollow metal doors.

Model 2 Hinges — Weight 2 Hinges — Width 3 Hinges — Weight 3 Hinges — Width Door Thickness Min. Height
3029-5x3.5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛" – 1½" 6'-8"
CL3029-5x3.5 65 lbs 2'-8" 93 lbs 3'-0" 1⅜" 6'-8"
3029-6x4.5 75 lbs 2'-8" 107 lbs 3'-0" 1¾" 7'-0"
CL3029-6x4.5 75 lbs 2'-8" 107 lbs 3'-0" 1¾" 7'-0"
3029-8x4.5 103 lbs 3'-6" 143 lbs 4'-0" 1¾" 7'-0"

Note: Do not use on doors with a beveled hinge edge. For 1¾" hollow metal doors with standard hinge locations, Bommer recommends the 3029-8x4.5 for maximum support.


Series 3

Bommer 3023 — Half Surface Type

Available in 3"–8". Door flange surface applied to face of door. Jamb flange surface applied to jamb. For ¾" to 2" thick doors.

Model 2 Hinges — Weight 2 Hinges — Width 3 Hinges — Weight 3 Hinges — Width Door Thickness Min. Height
3023-3 35 lbs 2'-0" 39 lbs 2'-8" ¾" – 1" 5'-0"
3023-4 60 lbs 2'-4" 75 lbs 3'-0" ⅞" – 1¼" 6'-8"
3023-5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛" – 1½" 6'-8"
CL3023-5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛" – 1½" 6'-8"
3023-6 75 lbs 2'-8" 107 lbs 3'-0" 1¼" – 1¾" 7'-0"
CL3023-6 75 lbs 2'-8" 107 lbs 3'-0" 1¼" – 1¾" 7'-0"
3023-7 82 lbs 3'-0" 120 lbs 3'-6" 1⅜" – 2" 7'-0"
CL3023-7 82 lbs 3'-0" 120 lbs 3'-6" 1⅜" – 2" 7'-0"
3023-8 103 lbs 3'-6" 143 lbs 4'-0" 1½" – 2" 7'-0"

Note: Do not use on doors with a beveled hinge edge.


Series 4

Bommer 3024 — Box Clamp Type

Available in 4"–8". Box clamp type double acting spring hinges. For ⅞" to 1⅞" thick doors. Box clamps are not adjustable.

Model 2 Hinges — Weight 2 Hinges — Width 3 Hinges — Weight 3 Hinges — Width Door Thickness Min. Height
3024-4 60 lbs 2'-4" 75 lbs 3'-0" ⅞", 1", 1⅛" 6'-8"
3024-5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛", 1¼" 6'-8"
CL3024-5 65 lbs 2'-8" 93 lbs 3'-0" 1⅛", 1¼" 6'-8"
3024-6 75 lbs 2'-8" 107 lbs 3'-0" 1¼", 1⅜", 1½" 7'-0"
CL3024-6 75 lbs 2'-8" 107 lbs 3'-0" 1¼", 1⅜", 1½" 7'-0"
3024-7 82 lbs 3'-0" 120 lbs 3'-6" 1⅜", 1½", 1⅝" 7'-0"
CL3024-7 82 lbs 3'-0" 120 lbs 3'-6" 1⅜", 1½", 1⅝" 7'-0"
3024-8 103 lbs 3'-6" 143 lbs 4'-0" 1½", 1⅝", 1¾", 1⅞" 7'-0"

Note: Box clamps are not adjustable.


Series 5

Bommer 3044-8 — Heavy Commercial Box Clamp

8" commercial box clamp double acting spring hinge. For 1¾" to 2½" thick doors. Minimum door height 7'-0". Box clamps are not adjustable. Note: as door width increases, maximum weight capacity decreases.

Model Door Width 2 Hinges — Weight 3 Hinges — Weight 4 Hinges — Weight
3044-8 3'-0" 265 lbs 400 lbs 560 lbs
3'-6" 245 lbs 360 lbs 500 lbs
4'-0" 225 lbs 320 lbs 440 lbs
4'-6" 185 lbs 280 lbs 380 lbs
5'-0" 165 lbs 240 lbs 320 lbs

Note: Box clamps are not adjustable.


Installation Instructions

Download Bommer installation PDFs


Need help choosing?

Not sure which Bommer series is right for your door? Contact us with your door weight, width, and thickness. Browse our full Bommer double acting spring hinge collection or return to the Help Center.