PD 9514 - SAFETY MEASURES TABLE Flashcards
DIMENSIONS LANG
**STAIRS
Maximum stair rise height for a class A stair
0.19 mtr.
**STAIRS
Maximum height between landings for class A stair.
2.75 mts
**STAIRS
Minimum headroom for class A & B stairs
2.00 mts.
**STAIRS
Minimum number of risers in any one (1) flight of stairs
3
**STAIRS
Minimum dimension of landings in direction of travel for class A & B stairs
112 cms.
**STAIRS
Maximum height of a handrail
86.5 cms
**STAIRS
Minimum height of a handrail above the upper surface of the tread.
76 cms.
**STAIRS
Minimum clearance of a handrail from any wall.
38 mm.
**STAIRS
Minimum height of a guard rail.
91 cms
**STAIRS
Maximum height of a guard rail.
106 cms.
**STAIRS
Minimum inner radius of a monumental stair.
7.50 mts.
**STAIRS
Minimum width of a fire escape stair for existing stairs.
55.9 cms
**STAIRS
Minimum width of landing for a fire escape stair for existing stairs.
55.9 cms.
**STAIRS
Minimum tread for a fire escape stair for small buildings.
15.25 cms
**STAIRS
Maximum rise of fire escape stair for a small building
30.5 cms.
**STAIRS
Maximum rise of fire escape stair for existing stairs
22.9 cms.
**STAIRS
Maximum height between landings for a fire escape stair for existing stairs
3.66 mts.
**STAIRS
Minimum headroom clearance for a fire escape stair for existing stairs
2.13 mts.
**STAIRS
Standard inner radius of a curved stair in business occupancies
763 cms.
**STAIRS
Minimum headroom clearance for a fire escape stair for small buildings
1.98 mts.
**STAIRS
Maximum height of riser for Class ‘A’ stairs.
19 cms
**STAIRS
Maximum height of riser for Class ‘B’ Stairs.
20 cms.
**STAIRS
Minimum width of stair for Class ‘B’ stairs serving more than 50 persons.
112 cms
**STAIRS
Minimum width of stair for Class ‘B’ stairs serving 50 persons and below.
91 cms
**STAIRS
Maximum horizontal projection of a handrail over a stair
38 mm.
**STAIRS
Minimum width of a stair width for Class ‘A’ stairs
25 mm
**STAIRS
Maximum height between landings for
Class ‘B’ stairs.
3.70 mts.
**STAIRS
Minimum width of landings in direction of travel for Class ‘A / B’ stairs.
112 cms.
**STAIRS
Minimum width for fire escape for existing stairs.
55.9 cms.
**STAIRS
Minimum horizontal dimension of any landing of platform for existing stairs for fire escape.
55.9 cms.
**STAIRS
Maximum rise for a fire escape for very small buildings
30.5 cms.
**STAIRS
Maximum height between landings for fire escape for existing stairs.
3.66 mts
**STAIRS
Minimum tread for a fire escape stair for existing stairs
22.9 cms.
**STAIRS
Maximum reduction in width of a stair by a handrail
9 CM
**STAIRS
Minimum stair width for a class B stair serving an occupant load of less than 50
91 cms
**STAIRS
Length of a nosing or effective projection over the level immediately below it for tread below 25 cms in dimension
25 mm
**STAIRS
Maximum rise of any floor from the balcony floor to which an access door leads.
20.3 cms
**RAMPS
Minimum width of a class A ramp
112 cms
**RAMPS
Minimum width of Class ‘B’ ramp.
76 cms.
**RAMPS
Standard slope of Class ‘B’ ramp in percentage
10-17%
**RAMPS
Maximum height between landings for Class ‘A’ ramp.
NO LIMIT
**RAMPS
Maximum height between landings for Class ‘B’ ramp.
3.66 mts.
**RAMPS
Minimum width of ramps of 3 stories or more in height
1.20 mts