Chapter 39 Stair Construction Layout Introduction Stairs can

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Chapter 39 Stair Construction Layout

Chapter 39 Stair Construction Layout

Introduction • Stairs can provide an elegant focal point – Step-by-step instructions will be

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 –

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

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

Straight Stair Layout • Includes: – Drawing the stairs with finished-quality lines – Dimensioning and notes

Open Stairway Layout • Major difference – No risers between treads

Open Stairway Layout • Major difference – No risers between treads

U-Shaped Stairs • Often used in residential design – Introduces a landing • Usually

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

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

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: –

Section–Stair Checklist • Refer to the text for a complete stair checklist, including: – Plot – Drawing – Annotation – Dimensions

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