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Published byBrooke Gardner Modified over 9 years ago
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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
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