© 2006 itt educational services inc. cd230 architectural design & drafting: unit 8 slide 1 unit...

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting: Unit 8 Slide 1

Unit 8

Fireplace and Stair Details

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 8 Slide 2

Fireplace Details

• Complete working drawing must be included to ensure correct construction


Masonry Fireplace


Fireplace Openings

• Small rooms should have small openings• Large rooms should have larges ones


Terms

• Ash Pit Space below the fireplace where the ashes are

stored

• Firebox Area in which the combustion of the fuel occurs

• Lintel Reinforced masonry or steel angle that supports

the fireplace face


Terms

• Throat Opening at the top of the firebox that opens into

the chimney At least 8” above the fireplace opening Minimum of 4” in depth

• Damper Across the throat to prevent heat from leaving

when there is no fire


Terms

• Smoke Chamber Acts as a funnel between firebox and chimney

• Smoke Shelf Prevents downdrafts from the chimney into the

firebox

• Chimney Upper extension used to carry off the smoke from

the fire


Terms

• Flue Opening inside the chimney Required to be 1/8th or 1/10th of the opening

• Chimney Liner Built into the chimney to provide a smooth surface

to the flue wall and reduce width of the chimney wall


Terms

• Chimney Cap Sloping surface at the top of the chimney to

prevent water from entering the flue

• Chimney Hood Covering placed over the flue to protect the flue

from the elements

• Spark Arrester Screen placed at the top of the flue to prevent

combustibles from leaving


Typical Dimensions


Minimum Chimney Height


Fireplace Construction


Prefab Fireplace Details


Mill Made Stairs


On-the-job Stair Construction


Terms

• Landing A platform between flights of stairs or at the

termination of stairs.

• Rise The vertical height of stairs.

• Run The horizontal distance of a flight of stairs


Terms

• Stringer The inclined member supporting the risers and

treads

• Riser The vertical face of the step

• Tread The horizontal surface member of each step


Stair Framing- I-beams


Stair Framing- Steel


Stair Layout


Determining Rise and Run

• Total Rise = Floor to ceiling height + floor joist + depth of floor

covering

• Number of risers = Divide total rise by maximum rise (7 3/4”)

• Number of treads = Number of risers - 1

• Total run = Tread width x number of treads


Stair Details

© 2006 itt educational services inc. cd230 architectural design & drafting: unit 8 slide 1 unit...

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