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
