Architectural Dimensioning Part 2 Masonry/Concrete Construction Interior Dimensioning

Review

Floor-Plan Dimensions Dimensioning system Aligned dimensioning--dimensions are placed in line with the dimension lines and are read from the bottom or right side of the drawing sheet Dimension lines are solid (Thin) and not broken Dimensions are placed above dimension lines approximately 1/16” above line All dimensions are 1/8” high, use guidelines

Aligned Dimensioning Example Note: Dimensions readable from the bottom of sheet and right side of sheet above the dimension line

Writing the Actual Dimension Feet and Inch/fractions: 6’-7 1/2” Even feet no inches: 4’- 0” Feet and zero inches/fractions: 8’- 0 3/4”

Writing the Actual Dimension No feet only inches: 10” No feet only inches/fractions: 8 1/2” Only fractions of an inch: 3/4”

General Rules to Follow for Placing Dimensions Place exterior dimensions outside the floor plan, starting with the smallest first, then subtotals and finally overall totals Place interior dimensions inside the floor plan in string fashion. Several strings may be required both horizontally and vertically

Spacing of Dimensioning Lines First string of dimensions are usually placed about 3/8” to 1” from the object depending upon the amount of space available Second string of dimensions are placed 3/8” to 1/2” from the first string of dimensions Additional strings of dimensions are spaced like the second string of dimensions

Arrows or Terminators For class project use diagonal lines for all dimensioning terminators Use arrows for all leaders and callouts

Making Arrows for Leaders Arrows for dimensions and leader lines should be the same Arrows usually have a set proportion and have a slender look to them 1/8” to 3/16” 1/32” to 1/16”

Making Tick Marks for Terminators Commonly 1/8” long at 45 degree Usually done freehand A thick slash is common on manual and CADD drawings Freehand slash all in the same direction

Dimension Procedures 2) Brick or stone veneer over frame Dimensions are placed on the drawing are dependant upon the type of material the walls are constructed of: 1) Frame or wood studs 2) Brick or stone veneer over frame 3) Solid masonry and cast concrete Discussion today includes 3 and Interior dimensioning

Solid Masonry and Cast Concrete Common wall thickness for cast concrete: 6”, 8”, 9”, 10”, and 12” Typical residential practice for concrete wall thickness: for frame walls use 8” concrete foundation for veneer/frame walls use 10” concrete foundation Solid masonry walls will vary to the actual structural need of materials used Project Sizes

Solid Masonry and Cast Concrete The procedure with this type of construction: dimension to outside surfaces and to openings in the construction

Foundation Plan Dimensioning Example Notice: 1) Door openings Column/Beam representation Footings (Dash) Notes on DWG. Edge of Concrete

Interior Walls & Partitions Typical interior walls are drafted 5” but are actually 4 1/2” When dimensioning to interior walls the common practice is to locate the center of the wall Generally the placement of interior dimensions is along a string of dimensions going the full length or width of house

Interior Dimensioning Assumed locations of features without dimensions given Standard features dimensioned with a note

Dimensioning the Interior of the Plan Locate the center of interior partitions with short extension line Place short extension line at exterior face of stud (exterior walls only) Place string of dimensions locating these features

Interior Wall Dimensioning Example Face of Stud Center of Wall To actual Opening Face of Stud

Dimension Exercise #2 Follow all rules as they apply: #1—Dimension exterior horizontal only of the concrete floor plan #2--Dimension interior horizontally and vertical then Dimension exterior horizontal 2

Example of Dimension Exercise Remember: Place dimensions in string fashion Face of stud exterior walls Center of interior walls Add extension lines and tick marks

Lab Time First--Work on Dimensioning Exercise Second—Work on Project Floor Plan