The COBB total opening system combines Timely steel door frames and COBB doors into one factory-finished, ready-to-install kit.
COBB doors are premachined to Timely specifications, including hinge and hardware prep plus precise clearances and beveling.
Timely frames are stocked in almost every standard wall size, giving contractors flexibility from specification through installation, backed by T.M. Cobb’s fast delivery.
Timely prefinished steel door frames are built from 20-gauge cold rolled steel to ensure superior strength and impact resistance.
Timely frames gain extra strength at the corners, where patented corner pieces hold casings in place for perfect miters every time. A 14-gauge reinforcing plate adds hinge support at every opening.
The T.M. Cobb difference is our anchorage. Timely frames anchor solidly every 11 inches, directly into wood or metal studs, providing a level of structural integrity unmatched by conventional wooden or free-standing hollow metal door frames.
Once installed, the Timely frame becomes an integral, maintenance-free part of the wall structure.
Timely frames adapt to nearly any type of construction. They install into wood stud, steel stud, masonry, and drywall openings alike, including wood stud paired with stucco or brick, and masonry paired with a steel sub-frame.
That versatility carries across building types, too. Luxury hotels, high-rise commercial structures, hospitals, nursing homes, and multi-family and single-family residential developments all get the same performance and economy.
T.M. Cobb’s Basic Frame concept allows total design flexibility. Combine any painted or metal-finish frame with your choice of casing for an unlimited variety of colors and visual effects.
Our Basic Frame with aluminum snap-on casing (Timely II) offers the aesthetic beauty of aluminum with the integrity of steel. It also retains the full range of fire ratings up to 90 minutes, priced dramatically lower than an all-aluminum frame.
T.M. Cobb also offers an adjustable prefinished door frame with a 3 3/4″ to 9 1/8″ range to meet any odd wall condition.
Timely prefinished steel door frames install fast enough that almost any tradesman, regardless of door-hanging experience, can learn the process in minutes. The installation technique adapts equally well to wood stud, metal stud, solid gypsum, or demountable partition systems.
The Timely frame always installs with the door: the COBB door acts as a template, and the frame adjusts to fit it. A screwdriver or awl makes precise final adjustments through alignment slots in the frame, then the casing snaps on to conceal all fasteners. Aligning the frame to the door and securing the adjustable strike delivers a precise, rattle-free installation every time.
Independent tests comparing Timely frame anchorage to traditional steel frames are available upon request. They consistently show Timely frames outperforming hollow metal frames in supporting heavy doors.
Frame strength and precision fit are essential to a secured entry system. Pairing a Timely frame with a solid-core door and deadbolt meets the toughest entry-level security requirements, and frames and doors are easily prepped for special locks and other security devices.
Timely prefinished steel door frames and COBB premachined doors virtually eliminate costly jobsite labor.
Skilled tradesmen no longer need to fit the door or prepare it for hardware, and factory prefinishing cuts finishing costs substantially. Because the frame installs after the walls are finished, it also eliminates time-consuming trimming and cut-in.
A Timely prefinished steel door frame is a factory-finished, 20 gauge steel frame that installs without field painting. T.M. Cobb anchors it directly into wood or metal studs every 11 inches for a permanent, maintenance-free fit, and premachines its doors to match.
T.M. Cobb distributes Timely frames through its dealer network across California. Use the dealer locator to find the closest supplier.
Yes. The T.M. Cobb Timely Frames Interactive Catalog lists profiles, sizes, and finish options.
Door handing identifies which side the hinges are on and which way the door swings. To confirm handing and the correct rough opening size for your frame, check the T.M. Cobb Timely Frames Interactive Catalog or contact your T.M. Cobb dealer for exact specifications.
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