Toilets Dimensions & Drawings | Dimensions.Guide

Toilets are bathroom fixtures used for the sanitary collection and disposal of human waste products such as urine and feces. Consisting of a bowl and seat, toilets provide hygienically safe and convenient facilities for relieving ourselves. Toilets come in a variety of disposal methods that range from common flush toilets, dry toilets, and vacuum toilets to pit latrines, portable toilets, and chemical toilets. Toilet bowls are made of ceramic (porcelain) but other disposal designs may be made from concrete, plastic or wood. Toilet manufacturers also offer diverse options for seat styles and bowl design along with new possibilities to integrate technology into the toilet that may improve your experiences. The most common toilet design variations are two-piece, one-piece, and wall-hung toilets.

Toilet Clearances

To front obstruction (minimum): 24” | 61 cm
To front obstruction (recommended): 36” | 91 cm
To side wall (from face): 12” | 30.5 cm min.
To side wall (from center): 22” | 56 cm min.
Toilet paper from floor: 30” | 76 cm
Toilet paper reach (from face): 12” | 30.5 cm

Toilet and water closets (WCs) clearances can be measured from the face of the fixture or from its center line. Minimum clearances between the face of the toilet fixture and the wall or nearest obstruction element are at least 24” | 61 cm* but are recommended to be 36” | 91 cm.

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Drawings of Toilet Clearances illustrated in side elevation and plan with dimensions

Toilet and water closets (WCs) clearances can be measured from the face of the fixture or from its center line. Minimum clearances between the face of the toilet fixture and the wall or nearest obstruction element are at least 24” | 61 cm* but are recommended to be 36” | 91 cm.

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Two-Piece Standard Toilet

Width: 19 1/2” | 494 mm
Depth: 28” | 710 mm
Height (Seat): 15 5/8” | 398 mm
Height (Tank): 28 1/2” | 724 mm

Two-Piece standard toilets are the most common household toilet based on the aesthetics and proportions of earlier toilets. Two-piece standard toilets are commonly sized at a depth of 28” | 710 mm, width of 19 1/2” | 494 mm, tank height at 28 1/2” | 724 mm, and seat height of 15 5/8” | 398 mm.

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Measured drawings of a Two-Piece Standard Toilet from the side, front, back and plan

Two-Piece standard toilets are the most common household toilet based on the aesthetics and proportions of earlier toilets. Two-piece standard toilets are commonly sized at a depth of 28” | 710 mm, width of 19 1/2” | 494 mm, tank height at 28 1/2” | 724 mm, and seat height of 15 5/8” | 398 mm.

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Two-Piece Low Back Toilet

Width: 15” | 382 mm
Depth: 28 1/2” | 724 mm
Height (Seat): 16 1/8” | 410 mm
Height (Tank): 30” | 761 mm

Two-piece low-back toilets are efficient common commercial toilets with lower tank heights for a more reduced presence. Two-piece low-back toilets have a typical depth of 28 1/2” | 724 mm, width of 15” | 382 mm, tank height at 30” | 761 mm, and seat at 16 1/8” | 410 mm.

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Dimensioned drawings of a Two-Piece Low Back Toilet showing the side, front, and plan

Two-piece low-back toilets are efficient common commercial toilets with lower tank heights for a more reduced presence. Two-piece low-back toilets have a typical depth of 28 1/2” | 724 mm, width of 15” | 382 mm, tank height at 30” | 761 mm, and seat at 16 1/8” | 410 mm.

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Two-Piece Modern Toilet

Width: 15 9/16” | 395 mm
Depth: 27 9/16” | 700 mm
Height (Seat): 15 9/16” | 395 mm
Height (Tank): 29 9/16” | 751 mm

Two-piece modern toilets are upgrades to the standard two piece toilet that are shaped more elegantly while also providing less surfaces for dirt to collect on. The two-piece modern toilet has a width of 15 9/16” | 395 mm, depth of 27 9/16” | 700 mm, and overall tank height of 29 9/16” | 751 mm.

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Measured drawings of a Two-Piece Modern Toilet with dimensions on the side, front, and plan

Two-piece modern toilets are upgrades to the standard two piece toilet that are shaped more elegantly while also providing less surfaces for dirt to collect on. The two-piece modern toilet has a width of 15 9/16” | 395 mm, depth of 27 9/16” | 700 mm, and overall tank height of 29 9/16” | 751 mm.

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One-Piece Standard Toilet

Width: 16 1/2” | 419 mm
Depth: 28 1/4” | 719 mm
Height (Seat): 16 1/8” | 410 mm
Height (Tank): 28 3/4” | 729 mm

One-piece standard toilets are streamlined common toilets that are smaller and easier to clean than similar two-piece standard toilets. One piece standard toilets have a typical depth of 28 1/4” | 719 mm, width of 16 1/2” | 419 mm, tank height at 28 3/4” | 729 mm, and seat at 16 1/8” | 410 mm.

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Multiple illustrations of a One-Piece Standard Toilet with dimensions documented on side, front, and plan views

One-piece standard toilets are streamlined common toilets that are smaller and easier to clean than similar two-piece standard toilets. One piece standard toilets have a typical depth of 28 1/4” | 719 mm, width of 16 1/2” | 419 mm, tank height at 28 3/4” | 729 mm, and seat at 16 1/8” | 410 mm.

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One-Piece Modern Toilet

Width: 15 13/16” | 402 mm
Depth: 28 7/16” | 722 mm
Height (Seat): 17 1/8” | 435 mm
Height (Tank): 27 15/16” | 709 mm

One-piece modern toilets are sleek contemporary fixtures with curves and forms designed to compliment a modern bathroom aesthetic. One-piece modern toilets have a typical depth of 28 7/16” | 722 mm, width of 15 13/16” | 402 mm, tank height of 27 15/16” | 709 mm, and seat height at 17 1/8” | 435 mm.

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Collection of drawings showing the front, side, and plan of a One-Piece Modern Toilet with included dimensions

One-piece modern toilets are sleek contemporary fixtures with curves and forms designed to compliment a modern bathroom aesthetic. One-piece modern toilets have a typical depth of 28 7/16” | 722 mm, width of 15 13/16” | 402 mm, tank height of 27 15/16” | 709 mm, and seat height at 17 1/8” | 435 mm.

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One-Piece Elliptical Toilet

Width: 18 7/16” | 468 mm
Depth (Overall): 31 1/2” | 800 mm
Depth (Base): 20 1/4” | 514 mm
Height (Seat): 17 5/16” | 440 mm
Height (Tank): 23” | 584 mm
Height (Open): 46 7/8” | 1.19 m

One-piece elliptical toilets are innovative luxury toilets with fully rounded counters that merge comfort and style. Using the latest smart toilet technologies, the one-piece elliptical toilet has a width of 18 7/16” | 468 mm, overall depth of 31 1/2” | 800 mm, and a tank height of 23” | 584 mm.

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Drawings of a One-Piece Elliptical Toilet with dimensions documented on the side, front, and plan views

One-piece elliptical toilets are innovative luxury toilets with fully rounded counters that merge comfort and style. Using the latest smart toilet technologies, the one-piece elliptical toilet has a width of 18 7/16” | 468 mm, overall depth of 31 1/2” | 800 mm, and a tank height of 23” | 584 mm.

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Wall Hung Round Toilet

Width: 14 3/16” | 360 mm
Depth: 21 1/16” | 535 mm
Height (Seat): 15-19” | 380-490 mm
Height (Overall): 18-22” | 457-559 mm

Wall hung round toilets are modern toilet fixtures that are wall-mounted to take up less floor space. Combining simple round curves with wall-mounted installation, the wall hung round toilet has a width of 14 3/16” | 360 mm, depth of 21 1/16” | 535 mm, and heights between 18-22” | 457-559 mm.

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Collection of measured drawings illustrating the dimensions of a Wall Hung Round toilet

Wall hung round toilets are modern toilet fixtures that are wall-mounted to take up less floor space. Combining simple round curves with wall-mounted installation, the wall hung round toilet has a width of 14 3/16” | 360 mm, depth of 21 1/16” | 535 mm, and heights between 18-22” | 457-559 mm.

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Wall Hung Square Toilet

Width: 14 3/16” | 360 mm
Depth: 22 7/16” | 570 mm
Height (Seat): 15-19” | 380-490 mm
Height (Overall): 16-20” | 406-508 mm

Wall hung square toilets are elegant and space saving solutions for modern bathrooms. With integrated and concealed wall-hung installation details, wall hung square toilets have crisp edges with a width of 14 3/16” | 360 mm, depth of 22 7/16” | 570 mm, and hung between 16-20” | 406-508 mm.

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Dimensioned drawings of multiple profiles of a wall hung square toilet from side, front, and plan

Wall hung square toilets are elegant and space saving solutions for modern bathrooms. With integrated and concealed wall-hung installation details, wall hung square toilets have crisp edges with a width of 14 3/16” | 360 mm, depth of 22 7/16” | 570 mm, and hung between 16-20” | 406-508 mm.

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