External Door Structural Opening Sizes
As external doors need to be more sturdy they are usually thicker with 44mm 1 3 4 being the most common thickness in domestic settings.
External door structural opening sizes. H4 for door width 925 h1 h3 h4 h2 door dimensions the table below shows a selection of standard sizes for single acting doors. Standard door widths structural opening width standard opening height 457 523 2033 533 599 2033 610 676 2033 686 752 2033 762 828 2033 838 904 2033 864 930 2033 914 983 2033. You should add 2 1 2 to the height of the actual door. These allow 10mm over actual frame dimensions.
All dimensions in millimetres. The standard heights and widths of external doors are often comparable to standard internal door sizes. Door set sizes door leaf mm outer frame structural module clear opening widths measurement opening size 90 90 90 mm mm 40mm 45mm 62mm single 625 x 2052 686 x 2089 710 x 2100 7 x 21 560 555 539 725 x. French doors are available in a wide range of sizes though some manufacturers offer more size options than others.
Height of structural opening. Entry doors are usually 36 inches wide. Door width lining depth fitting tolerance overall door kit width structural opening width 533mm 21 25mm 2mm 587mm 592mm 610mm 24 25mm 2mm 664mm 669mm 686mm 27 25mm 2mm 740mm 745mm 762mm 30 25mm 2mm 816mm 821mm. Width of structural opening measure your opening from one side to the other do this om three places.
Typically internal french doors are either 35mm or 40mm thick while external french doors are 44mm in thickness and are available in sizes from 36 x78 to 42 x78 46 x78 48 78 54 78 and 60 78. In scotland the most common door frame width is 726mm. As the size of the frame you require will depend on the size of the opening there is no standard uk door frame size. Framing rough opening sizes are really quite simple.
So on an external brick opening you would add 80mm to the width and the height of the door to get close to the brickwork and on internal doors you would add 60mm to the width and just 30mm to the height of the door to get near to the brick to brick opening. Door frames can be supplied pre assembled or in component parts which can be cut to size to fit all door sizes. The main difference is seen in the thickness of external doors. Getting the rough opening size right the first time will save you from frustration when installing your doors.
Just add 2 to the width of the actual door size. The widest measurement will determine the width of the door. Structural openings for blockwork allowing for 18mm ply sub liners.