(A)
the top rail, vertical supporting posts and intermediate rail shall be constructed of at least 50 mm × 100 mm No. 2 grade or better SPF, these measures being nominal, and
(B)
shall not be painted other than by a transparent protective coating,
(ii)
if made of metal pipe,
(A)
the top rail and vertical supporting posts shall be at least 40 mm in diameter, and
(B)
the intermediate rail shall be at least 25 mm diameter,
(iii)
if made of angle iron,
(A)
the top rail and vertical supporting posts shall be at least 40 mm × 40 mm by 5 mm, and
(B)
the intermediate rail shall be at least 32 mm × 32 mm × 3 mm, or
(iv)
if made of wire rope,
(A)
the vertical supporting posts shall be made of steel of at least 40 mm in diameter or of a material of equivalent strength, and
(B)
the top rail and intermediate rail shall be at least 10 mm in diameter, be attached to a welded fastening on the vertical supporting posts with metal clips to prevent unnecessary sagging and be easily distinguishable from the background; or
(b)
be pre-engineered.
97(2)A guardrail shall
(a)
have a height of not less than 900 mm or more than 1.07 m from the floor level,
(b)
have a toeboard which
(i)
is at least 127 mm high,
(ii)
is fastened to the inside of the vertical supporting posts, and
(iii)
has a space of not more than 6 mm between the bottom of the toeboard and the floor,
(c)
have vertical supporting posts not more than 2.4 m apart along its entire length unless otherwise specified in manufacturer’s specifications, and
(d)
have vertical supporting posts not more than 3 m apart along its entire length if the guardrail is used on scaffolding.
97(3)The vertical supporting posts referred to in paragraphs 2(c) and (d) shall be adequately fastened to the structure to support the loads imposed upon it.
97(4)Unless the guardrail is a pre-engineered guardrail, the top rail shall be fastened to the top or inside of the vertical supporting posts and the intermediate rail shall be fastened to the inside of the vertical supporting posts midway between the top rail and the floor level.
97(5)A guardrail shall be made of materials with sufficient strength and rigidity to support loads with the following minimums:
(a)
675 N in any direction, at any point along the top rail;
(b)
450 N in any direction, at any point along the intermediate rail; and
(c)
900 N in any direction, at any point along the top rail, intermediate rail and toeboard if the guardrail is used on a surface that is sloped more than 3 in 12 and less than 6 in 12.
(A)
the top rail, vertical supporting posts and intermediate rail shall be constructed of at least 50 mm × 100 mm No. 2 grade or better SPF, these measures being nominal, and
(B)
shall not be painted other than by a transparent protective coating,
(ii)
if made of metal pipe,
(A)
the top rail and vertical supporting posts shall be at least 40 mm in diameter, and
(B)
the intermediate rail shall be at least 25 mm diameter,
(iii)
if made of angle iron,
(A)
the top rail and vertical supporting posts shall be at least 40 mm × 40 mm by 5 mm, and
(B)
the intermediate rail shall be at least 32 mm × 32 mm × 3 mm, or
(iv)
if made of wire rope,
(A)
the vertical supporting posts shall be made of steel of at least 40 mm in diameter or of a material of equivalent strength, and
(B)
the top rail and intermediate rail shall be at least 10 mm in diameter, be attached to a welded fastening on the vertical supporting posts with metal clips to prevent unnecessary sagging and be easily distinguishable from the background; or
(b)
be pre-engineered.
97(2)A guardrail shall
(a)
have a height of not less than 900 mm or more than 1.07 m from the floor level,
(b)
have a toeboard which
(i)
is at least 127 mm high,
(ii)
is fastened to the inside of the vertical supporting posts, and
(iii)
has a space of not more than 6 mm between the bottom of the toeboard and the floor,
(c)
have vertical supporting posts not more than 2.4 m apart along its entire length unless otherwise specified in manufacturer’s specifications, and
(d)
have vertical supporting posts not more than 3 m apart along its entire length if the guardrail is used on scaffolding.
97(3)The vertical supporting posts referred to in paragraphs 2(c) and (d) shall be adequately fastened to the structure to support the loads imposed upon it.
97(4)Unless the guardrail is a pre-engineered guardrail, the top rail shall be fastened to the top or inside of the vertical supporting posts and the intermediate rail shall be fastened to the inside of the vertical supporting posts midway between the top rail and the floor level.
97(5)A guardrail shall be made of materials with sufficient strength and rigidity to support loads with the following minimums:
(a)
675 N in any direction, at any point along the top rail;
(b)
450 N in any direction, at any point along the intermediate rail; and
(c)
900 N in any direction, at any point along the top rail, intermediate rail and toeboard if the guardrail is used on a surface that is sloped more than 3 in 12 and less than 6 in 12.
97(1)A guardrail shall be made of a material prescribed in subsection (2) and shall
(a)
be of sufficient strength and rigidity to support loads which may be imposed on it,
(b)
have a height of not less than 900 mm or more than 1.07 m from the floor level,
(c)
have vertical supporting posts not more than 2.4 m apart along its entire length,
(d)
have a top rail with an intermediate rail between the top rail and the floor level and have the top rail fastened to the top or inside of the vertical supporting posts and the intermediate rail fastened to the inside of the vertical supporting posts midway between the top rail and the floor level, and
(e)
have a toeboard
(i)
at least 127 mm high,
(ii)
fastened to the inside of the vertical supporting posts, and
(iii)
with a space not more than 6 mm between the bottom of the toeboard and the floor.
97(2)A guardrail shall be made of wood, metal pipe, angle iron or wire rope and
(a)
if made of wood, the top rail, vertical supporting posts and intermediate rail shall be constructed of at least 50 mm × 100 mm No. 1 grade or better spruce or fir;
(b)
if made of metal pipe,
(i)
the top rail and vertical supporting posts shall be at least 40 mm in diameter, and
(ii)
the intermediate rail shall be at least 25 mm in diameter;
(c)
if made of angle iron,
(i)
the top rail and vertical supporting posts shall be at least 40 mm × 40 mm × 5 mm, and
(ii)
the intermediate rail shall be at least 32 mm × 32 mm × 3 mm; or
(d)
if made of wire rope,
(i)
the vertical supporting posts shall be made of steel at least 40 mm in diameter or of a material of equivalent strength, and
(ii)
the top rail and intermediate rail shall be at least 10 mm in diameter, be attached to a welded fastening on the vertical supporting posts with metal clips to prevent unnecessary sagging and be easily distinguishable from the background.
97(3)Measurements of lumber in paragraph (2)(a) are nominal.