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Chapter 39. Stair Construction Layout. 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. Stair Terminology. Basic terms: Run Rise Tread Riser
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Chapter 39 Stair Construction Layout
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
Stair Terminology • Basic terms: • Run • Rise • Tread • Riser • Stringer or stair jack • Kickblock or kicker • Headroom • Handrail • Guardrail
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
Straight Stair Layout • Includes: • Drawing the stairs with finished-quality lines • Dimensioning and notes
Open Stairway Layout • Major difference • No risers between treads
U-Shaped Stairs • Often used in residential design • Introduces a landing • Usually at midpoint of run • Can be offset • Open or enclosed
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
Exterior Stairs • Concrete and wood stairs are common • Both laid out following straight-run stair procedure • Finish materials have major differences
Section–Stair Checklist • Refer to the text for a complete stair checklist, including: • Plot • Drawing • Annotation • Dimensions