DELO SOFA

DELO SOFA

How is the size of a sofa calculated?

2025 04/25

Sofa Size: An International Standard
Internationally, sofa size is defined by its width, depth, and height, measured in millimeters (mm), a convention distinct from length-based descriptions.
 
Width: Often perceived as the "length," width denotes the maximum span between the outer edges of the two armrests. The crucial seat width, however, excludes the armrests:
 
Seat Width = Width - (Armrest Width * 2)
Single, double, and triple sofas are categorized based on their overall width and, more importantly, their seat width, as these dimensions dictate the seating capacity. Consider the variety of styles, from a compact Modern Sofa to more expansive designs.
 
Depth: Commonly referred to as the "width," depth is the maximum front-to-back distance of the sofa, including the backrest. Seat depth is measured without the backrest:
 
Seat Depth = Depth - Backrest Thickness
A typical sofa depth ranges from 800 to 1000 mm, with a seat depth of 550 to 700 mm considered standard. While some prefer deeper sofas for enhanced relaxation, excessive depth poses challenges:
 
1.It must align with the sofa's overall style. A Wood Sofa, for instance, might have a different depth profile than a plush Fabric Sofa.
2.Too much depth can hinder proper back support.
3.If the sofa's edge falls mid-calf, it can compromise comfort.
 
Height: Height is the maximum vertical distance from the floor to the sofa's highest point. Seat height is the distance from the floor to the seating surface. European and American sofas often feature a seat height between 430 and 470 mm. For Asian builds, a seat height of 400-450 mm is generally suitable. The total height should complement the sofa's design; arbitrary changes are not advisable. The choice of material, such as a sleek Leather Sofa, can also influence perceived height.
modular sofa
General Dimensions: Given the diverse styles and designs, absolute size standards are elusive. However, some common dimensions exist:
Armrest Height: Typically 560-600 mm.
Single-person sofa: Width (length): 800-950 mm, Depth (width): 850-900 mm; Seat Height: 350-420 mm; Back Height: 700-900 mm.
Double-person sofa: Width (length): 1260-1500 mm; Depth (width): 800-900 mm.
Three-person sofa: Width (length): 1750-1960 mm; Depth (width): 800-900 mm.
Four-person sofa: Width (length): 2320-2520 mm; Depth (width): 800-900 mm.
It's important to note that imported, European, classical, and American sofas tend to be more spacious. Placing them in smaller living rooms can sometimes make the space feel more constricted.
modular togo sofa