How To Read Floor Plans Dimensions
Dimensions in blueprints represent the size of an object in two or three dimensional space. Below the room label is the room dimensions.
Floor plans are presented as a view from above looking down at the floor.
How to read floor plans dimensions. Construction plans blueprints are scaled down representations of the final project at a ratio of the actual size. Typically the upper area of two story rooms foyers family rooms isn t counted as part of the floor plan. More detailed floor plans with dimensions include dimension strings to locate windows doors walls and other architectural elements.
On plans drawn to a one quarter of an inch scale for instance two inches equal eight feet of true space. Dimension strings are drawn parallel to the element with 45º hash marks at each end of the dimension string indicating where the measurement starts and ends. Some measurements such as room dimensions will be labeled directly on the blueprints with their actual size.
Floor plans normally feature a written ratio e g. As a rule architectural plans are drawn to a scale. Sometimes the scale can be written out while other times a graphic scale such as shown here is provided.
You ll probably never see the volume of a house plan listed on a house plan website but the number representing the area of a floor plan often depends on how the volume is counted. Doors and windows are two of the most important elements shown on a floor plan. The legend should also include the scale 1 4 inch equals 1 foot.
Scale 1 100 to demonstrate scale as well as a block or granulated scale which helps give a visual indication of sizes and distances. Likewise stairs are only counted once. Measurements are almost always provided in millimetres the exception being that metres are sometimes used to give a general idea of room sizes.
It is assumed that the plan is cut at about 48 above the floor. Use the dimension scale where measurements are not provided. Each door and window is given a location and size.
For example 1 8 1 one eighth inch equals one foot. Each page of the drawings should be labeled to indicate what size scale the architect or home designer used when drafting the plans. When construction plans are scaled it helps to put the part into a print size drawing that is easily read by the crew.
It is listed in feet and inches with the width first and the length second. The primary goal of the floor plan is to provide information about the location and relationship of the spaces you want to be built. An example would be 1 inch 2 5 cm equals 10 feet 1 10 so measuring between to walls on the plan sheet means for each inch the distance is 10 feet 3 0 m.
For example a dimension of a rectangular room on a blueprint 14 11 x 13 10 equates to a room size of 14 feet 11 inches wide by 13 feet 10 inches long. 1 8 inch equals 1 foot etc at which the floor plan is drawn. Every plan should include a legend that indicates what the project is and what floor the plan is of.
Dimensions are expressed as width by length by height or depth in three dimensional space.