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Swing Doors

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Domestic swing doors commonly employ flush-mounted ‘mortise’ hinges that are designed to sit flush in the surface of a door frame insuring the edges of the door fit tightly into a frame allowing weather sealing along sill, lintel and doorstop. Lock and latch mechanisms are also designed to be flush mounted, with relatively deep channels for spring and dead bolts. This is a complication for use with aluminum profile framing as most components are intended to be retrofit frame elements. However, a simple solution may be available with heavier commercial doors fashioned as a set complete with matched alloy frame and door elements. This matching frame unit, often made of stainless steel for exterior doors, contains ready mounting for the door hardware and can be installed as a unit bolted directly between two Secondary frame elements and an added horizontal cross brace profile over the lintel. (forming an ‘H’ configuration) Common double-rabbet 5 7/8” jamb frames may approximate the thickness of 150mm Primary framing and common 3” single-rabbet may be suited to to 100mm framing. [additional study needed to identify several off-the-shelf door unit products]

Added specialized paneling is then fashioned to complete a surround filling the standard 1000x2400mm frame opening. This can additionally integrate lighting and small windows. Some off-the-shelf door frame systems feature ready-made transom and sidelight framing complimenting their door frames and which can be readily adapted to the creation of a complete flush-mounted doorway unit fitting the standard panel opening.

Some T-slot profile lines include ready-made door hardware including door sill and doorstop profiles designed to accommodate 40mm thick door panels in 40mm series profile frames. To accommodate the Utilihab 50mm series profiles a thin half-profile strips may be added to the door frame to reduce it to the 40mm thickness. Latch hardware designed for T-slot use employ the existing profile frame slots for dead bolts and spring bolts and can be installed either in milled T-slot door frames or wood door panels. Snap-in cover strips provide quick sill and side plates. This approach with well suited to simple light interior doors.

Where solid wood doors and wood-finished frames are desirable (often to match the trim of wall paneling finishing strips), milled pre-finished door frames can be simply fashioned to accommodate any off-the-shelf or custom made doors. These wood frame plates would integrate door stop and hardware recesses and can be made to most any thickness desired, given the amount of available space in the standard 1m wide panel opening. These are then simply screwed in place to T-nuts in the surrounding frame members, along with a sill plate, to attach to the available facing profile slots. This simpler approach is particularly well suited to light interior doors and can also be used as the basis of complete pre-fabricated flush-mounted doorway panel modules.

[Study is needed into a possible specialized profile series just for doorways and matched to standard framing profiles]

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