Carpentrybook Mod 4 Blueprints

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elevation view

a drawing providing a view from the front or side of a structure

plan view

a drawing represents a view looking down an object.

easement

a legal right of way provision on another person's property ( for example, the right of a neighbor to build a road or a public utility to install water and gas lines on the property). A property owner cannot build on an area where an easement has been identified.

benchmark

a point established by the surveyor on or close to the building site. its is used as a reference for determining elevations during the construction of a building

rising diagram

a schematic drawing tha tdepicts the layout, components, and connections of a piping system.

stair indicator line

a short line with an arrowhead that shows the ascent or descent of a stairway on a floor plan

title sheet

acts an index to the rest of the drawings usually has a list of abbreviations and their meanings

topographical survey

an accurate and detailed drawing of a place or region tha depicts all the natural and man made physical features, showing their relative positions and elevations.

nominal size

approximate or rough size (commercial size) by which lumber, CMU, etc., is commonly known and sold, normally slightly larger than the actual size (for example, 2*4s)

contour lines

contour lines are drawn on a site plan and topographical survey to show the changes in elevation and contour of the land

object line

heavy line used to show the main outline of a structure, including exterior walls, interior partitions, porches, patios, sidewalks, parking lots, and driveways.

contour lines

imaginary lines on a site plan that connect pints of the same elevation. Contour lines never cross each other.

dimension and extensions lines

lightweight lines used to provide the dimensions of an object. an extension line is extended from an object at both ends of the object to be measured. Extension lines should not touch the object lines. A dimension line is drawn at right angles between the extension lines and number placed above, below, or to the side of it to indicate the length of the object being measured. Sometimes a gap is provided in the dimension line and the dimension is shown in the gap.

monuments

physical structures that mark the location of a survey point

architectural drawings

plan views, elevation views, sections, details, schedules Structural drawings...foundation plans Mechanical plans...HVAC plans; Sprinkler plans Electrical plans Plumbing plans

front setback

the distance from the property line to the front of the building

property lines

the recorded legal boundaries of a piece of property

drawings set

title sheets, title blocks, and revision blocks

leader line

used to connect a note or dimension to a related part of the drawing. leader lines are usually curved or at an angle from the feature being distinguished to avoid confusion with dimensions and other lines

center line

used to designate the center of an area or object and to provide a reference point for dimensioning. Center lines are typically used to indicate the centers of objects such as columns, posts, footings, and door openings.

phantom line

used to indicate alternative positions of moving parts, such as damper's swing or adjacent positions of moving parts. it may also be used to represent repeated details.

cutting plane line

used to indicate an area that is being cut away and shown in a section view so that the interior features can be seen. the arrows at the ends of the cutting plane line indicate the direction in which the section is viewed. Letters identify the section view of that specific part of the structure. more elaborate methods of labeling are used in larger sets of plans where many sections are being used. the section view may be on the same page as the cutting plane line or another page

hidden line

used to indicate an outline that is invisible to an observer because it is covered by another surface or object that is closer to the observer

break line

used to indicate that an object or area is not being shown in its entirety

engineer's scale

uses multiples of 10 and uses decimals. 1 inch = 10 feet

revision block

usually in the upper or lower right corner of the title block records any changes that have been made to the drawings

title block

usually located in the lower right hand corner or along the right edge of the sheet contains the name of the firm owner's name the address and the name of the project date sheet was prepared, the scale and the initials or names of the people who prepared and checked the drawings


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