Manual of Purpose-Made Woodworking Joinery

102 Designing and making stairs to current building regulations

SITE MEASUREMENTS

Traditionally, accurate information required for the

production of wooden stairs was considered essen-

tial; measurements on working drawings produced

by others (and the newly- built stairwell) were not

assumed to be correct, unless checked on site by an

experienced, responsible person.

Advanced Craft joinery students made it and helped
me to install it in 1989. Note the listing of the various
regulations that are ticked as having been met.
Meticulous checks like this are essential at the design
stage.

Up

Bullnose

step

Metric scale 1:10

Ex 75 × 75 mm

Newel post

Bulkhead

position

above

Handrail

900 mm above

pitch line

2

1

3

4

5

6

7

8

9

10

11

12

1.670m

13

14

15

16 ‘B’

1.793 m

‘A’ or ‘B’ extended joists

to be taken into loft space

to achieve a degree of

cantileverage to landing

Extended

joists

Level

handrail

balustrade

900 mm above

landing

Form opening in stud

wall to attic area

‘A’

2.820m

Meeting the stair regulations

Total rise = 2950 ÷ 16 = 184.37 mm rise

Going on straight flight = 220 mm

2R+G on straight flight = 588.74 mm

2R+G on tapered steps = 603.74 mm

Pitch on straight flight = 40º

Pitch on tapered steps = 38º

ü ü ü ü ü ü

Ex 75 × 40 mm

half newel post

Figure 6.27

Staircase designed

and installed in an

actual loft conver-

sion.