Miami - Bespoke Pivot Oak Doors - Cumbrian Project

Standard Internal Door Sizes

Inches Standard Imperial Door Sizes (mm)
12x78 (1 3/8" thick) 306x1981x35
15x78 (1 3/8" thick) 381x1981x35
18x78 (1 3/8" thick) 457x1981x35
21x78 (1 3/8" thick) 533x1981x35
24x78 (1 3/8" thick) 610x1981x35
27x78 (1 3/8" thick) 686x1981x35
30x78 (1 3/8" thick) 762x1981x35
32x80 (1 3/8" thick) 813x2032x35
33x78 (1 3/8" thick) 838x1981x35
Inches Standard metric door sizes (mm)
20 45/64" x 80 1/4" (1 37/64" thick) 526x2040x40
24 5/8" x 80 1/4" (1 37/64" thick) 626x2040x40
28 5/8" x 80 1/4" (1 37/64" thick) 726x2040x40
32 1/2" x 80 1/4" (1 37/64" thick) 826x2040x40
36 7/15" x 80 1/4" (1 37/64" thick) 926x2040x40

Standard Internal Fire Door Sizes

Inches Standard Imperial Door Sizes (mm)
12x78 (1 3/8" thick) 306x1981x35
15x78 (1 3/8" thick) 381x1981x35
18x78 (1 3/8" thick) 457x1981x35
21x78 (1 3/8" thick) 533x1981x35
24x78 (1 3/8" thick) 610x1981x35
27x78 (1 3/8" thick) 686x1981x35
30x78 (1 3/8" thick) 762x1981x35
32x80 (1 3/8" thick) 813x2032x35
33x78 (1 3/8" thick) 838x1981x35
Inches FD30 Rated metric fire door sizes (mm)
20 45/64" x 80 1/4" (1 47/64" thick) 526x2040x45
24 5/8" x 80 1/4" (1 47/64" thick) 626x2040x45
28 5/8" x 80 1/4" (1 47/64" thick) 726x2040x45
32 1/2" x 80 1/4" (1 47/64" thick) 826x2040x45
36 7/15" x 80 1/4" (1 47/64" thick) 926x2040x45

Sizing for pre-hung door-sets

Doorsan are able to supply custom made door options of both door leaf only and as a complete pre-hung door-set system. For pre-hung door-sets, a simple calculation can be used to determine the size of the structural opening or to ascertain the size of door-set required for existing openings and wall thickness.

Internal Door Thickness

For those who prefer homes to feel a little more established, 45mm internal door thickness can be used throughout the interior. Doors that are 45mm thickness can also be FD30 fire-rated, but it doesn’t always have to be the case and sometimes the cost of materials used for these non-fire rated (NFR) doors can be reduced slightly, whilst still retaining the weight and acoustic properties.

Doorsan also produces doors in 35mm and 40mm thickness and these options are also very popular, especially for pocket doors, cloakrooms or oversized doors, where a marginally lighter door is a more  suitable option.

Door thickness illustration