H5 - Stairs - LT#1

Question 1

Describe a nosing return:

Answer 1

The exposed end of the tread is shaped in the same way as the front nosing with molding placed under the tread.

Question 2

Describe a filet:

Answer 2

Filet are shaped to fit between the balusters under the handrail & on top of the buttress cap

Question 3

Describe a buttress cap (Shoe rail, base rail)

Answer 3

Shoe rail/ base rail - USed under the balusters, shaped to take the end of the balusters used in railing at landing or on top of the stringers.

Question 4

Describe an angle newel:

Answer 4

Used at turns on a staircase.

Question 5

Describe a finished opening:

Answer 5

The horizontal distance from the edge of the nosing at the upper landing to the edge of the finish at the other end of the stairwell.

Question 6

What is the difference between a long L stair and a wide L stair?

Answer 6

Long L stairs have 2 or 3 treads at the bottom or the top at right angles to the treads.

Question 7

When is a landing required in a stairway?

Answer 7

At 3.7 m intervals.

Question 8

What is the difference between open stairs & closed stairs?

Answer 8

Open stairs - Have one or both sides open to a room

Closed stairs - Have both sides closed

Question 9

What is the minimum landing depth for an L-Shaped interior stair serving a dwelling unit?

Answer 9

900 mm

Question 10

What is molding?

Answer 10

Trim is used under the nosing to finish the stairs

Question 11

What is the balustrade?

Answer 11

A complete unit of the newel posts, handrail, balusters and buttress cap

Question 12

Balusters must be constructed so that they DON’T facilitate climbing, true or false?

Answer 12

True, they cannot facilitate climbing.

Question 13

Materials used as handrails must be continuously graspable except where:

Answer 13

Interrupted by newels at changes in direction.

Question 14

How much space is between the handrail and the wall?

Answer 14

50 mm

Question 15

When is a landing newel used in the Balustrade?

Answer 15

Used at the top end of a stair

Question 16

A starting newel needs what through the floor?

Answer 16

It should extend through the floor and be securely blocked to prevent any movement.

Question 17

What is a stringer support board?

Answer 17

Also known as a hanger board, 19 mm thick plywood nailed or screwed to the stringers & to the headers of the stairwell opening.

Question 18

What is the quality of all open stairs?

Answer 18

All contain a finished balustrade.
All open stairs have one or both sides open to a room or hallway.

Question 19

What is the quality of all closed stairs?

Answer 19

Closed on both sides of the stairway. Handrail attached to the Wall or one on both sides.

Question 20

What is a narrow U-stairs, and what is its advantage?

Answer 20

Two flights, running in opposite directions with a landing at the midway point.

Advantage: Compact

Question 20

What are Wide U Stairs?

Answer 20

Have THREE flights, separated by two landings. This type of stairway has an open center that allows light to penetrate to flights below.

Question 21

What are Long L stairs?

Answer 21

Long L stair consist of a straight flight, with two or three treads at the top or bottom, at right angle to the main stairs

Question 22

What are Wide L stairs?

Answer 22

Wide L stairs consist of two straight flights at right angles to each other. With landing or winders at the change of direction.

Question 23

What are double L stairs?

Answer 23

Double L stairs consist of a straight flight, with two or three treads at right angles to the main stairs at both the top & bottom. Landing or winders are used at the change of direction.

Question 24

What are quarter-turn stairs?

Answer 24

Stairs such as the wide L and the Long L are also known as quarter-turn stairs.

Quarter may use landing or have winders in the direction change.

Question 25

Winders are stairs with tapered treads at 45 degrees or

Answer 25

30 degrees

Question 26

What is the purpose of a landing?

Answer 26

Change directions or break the total rise into smaller figures.