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Chapter 39
Stair Construction Layout
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Introduction• Stairs can provide an elegant focal point
– Step-by-step instructions will be given for drawing:
• Straight run stair layouts• Open stair layouts• U-shaped stair layouts
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Stair Terminology• Basic terms:
– Run– Rise– Tread– Riser– Stringer or stair jack
– Kickblock or kicker– Headroom– Handrail– Guardrail
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Determining Rise and Run• Building codes dictate maximum rise
– Total height from floor to floor must be known– Total rise is found by adding floor-to-ceiling
height, floor joist depth, and floor covering depth
• Total rise is divided by maximum allowable rise to determine the number of steps
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Straight Stair Layout• Includes:
– Drawing the stairs with finished-quality lines– Dimensioning and notes
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Open Stairway Layout• Major difference
– No risers between treads
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U-Shaped Stairs• Often used in residential design
– Introduces a landing• Usually at midpoint of run• Can be offset
– Open or enclosed
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L-Shaped Stairs• Major differences from U-shaped stairs:
– Landing can be placed at any point of stair run– A portion of stair will be shown in elevation,
and a portion will be shown in section
• Cutting plane placement determines views
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Exterior Stairs• Concrete and wood stairs are common
– Both laid out following straight-run stair procedure
– Finish materials have major differences
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Section–Stair Checklist• Refer to the text for a complete stair
checklist, including:– Plot– Drawing– Annotation– Dimensions