hot dip galvanized or painting metal grating staircase

1, quality durable, easy installation, bearing capacity 2, easy clean and anti- corrosion, suitable for all kinds of application

1) stair treads can be made of any type of steel gratings, and its dimensions may be assigned according to customer's requirement.

2) It is suggested that the length, width, front nosing and side plate recommended by us should be adopted as much as you can from the economical angle.

T1 welding fixing, stair tread without front plate nosing.

T2 bolt fastening, stair tread without front plate nosing

T3 welding fixing, stair tread with front checkered plate nosing

T4 bolt fastening, stair tread with front checkered plate nosing

Recommend stair tread width:

T1,T2,T3,T4 Bearing bar pitch 30mm	95	125	155	185	215	245	275
T1,T2 Bearing bar pitch 40mm		125	165		205	245	285
T3,T4 Bearing bar pitch 40mm		115	155		195	235	275
Screw hole pitch(mm)	45		75		100		150

Stair tread max-length:

Steel flat size Steel grating standards	25×3	25×5	32×5
Bearing bar pitch 30 mm	550	900	1300
Bearing bar pitch 40 mm	450	750	1200

 

hot dip galvanized or painting metal grating staircase