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Expanded Metal Stair Treads Provide Safe Footstep for Pedestrians

Expanded metal stair treads have excellent anti-skid performance and high load capacity, and are very suitable for moving stairs, stationary stairs and spiral stairs in project construction. We can provide expanded metal stair treads perfect match up with your application environments to provide safety protection for your construction workers.

Contact us, we can provide you with professional, custom stair tread solutions.

Expanded metal stair treads are used to built a multi-stage stair.

Features

Excellent anti-skid performance makes pedestrians free from falling risks arising from slipping.
Rigid structure offers high load capacity and strong, stable support.
Diamond openings help snow, water, grease and fluid to drain out.
Unique surface structure can effectively avoid dazzling feeling when people looking down from a high place.

Specification

Partial details of hexagonal expanded metal stair treads.

2.0 lb, 3.0 lb, 4.0 lb, 5.0 lb, 6.25 lb, 7.0 lb

Partial details of diamond expanded metal stair treads.

3.14 lb

Diamond expanded metal stair tread opening details

4.27 lb

Table 1: Carbon Steel Expanded Metal Stair Treads
Material	Weight (lbs./ft²)	Opening Size (Inch)		Strand (Inch)		Open Area
Material	Weight (lbs./ft²)	SWD	LWD	Width	Thickness	Open Area
Carbon steel	2.00	1.33	5.33	0.24	0.14	77%
	3.00	1.33	5.33	0.26	0.18	60%
	3.14	2.00	6.00	0.31	0.25	69%
	4.00	1.33	5.33	0.30	0.22	55%
	4.27	1.41	4.00	0.30	0.25	58%
	5.00	1.33	5.33	0.33	0.25	50%
	6.25	1.41	5.33	0.35	0.31	50%
	7.00	1.41	5.33	0.39	0.32	45%

Table 2: Stainless Steel Expanded Metal Stair Treads
Material	Weight (lbs./ft²)	Opening Size (Inch)		Strand (Inch)		Open Area
Material	Weight (lbs./ft²)	SWD	LWD	Width	Thickness	Open Area
Stainless steel	3.32	2.00	6.00	0.31	0.25	69%
Stainless steel	4.25	1.41	4.00	0.30	0.25	58%

Table 3: Aluminum Expanded Metal Stair Treads
Material	Weight (lbs./ft²)	Opening Size (Inch)		Strand (Inch)		Open Area
Material	Weight (lbs./ft²)	SWD	LWD	Width	Thickness	Open Area
Aluminum	2.00	1.33	5.33	0.39	0.25	48%

Load Capacity Diagram

The load capacity of expanded metal stair treads is mainly reflected in 2 aspects of transverse uniform load and concentrated load. Our expanded metal stair treads comply with EMMA 557-15 standard requirements.

Uniform load and deflection diagram

Concentrated load and deflection diagram

Table 4: Carbon Steel Expanded Metal Stair Tread Concentrated Load & Deflection Table
Style (lbs./ft²)	Concentrated Load C (lb./ft.) & Deflection D (in.)	24-Inch Span	36-Inch Span
3.0#	C	274	126
3.0#	D	0.25	0.25
3.14#	C	340	117
3.14#	D	0.25	0.25
4.0#	C	468	201
4.0#	D	0.25	0.25
4.27#	C	419	196
4.27#	D	0.25	0.25
Notes The allowable tolerance for weight per square foot is ±5%. Both ends of the tested expanded metal stair tread have been welded to a fixed metal frame.

Table 5: Aluminum Expanded Metal Stair Tread Concentrated Load & Deflection Table
Style (lbs./ft²)	Concentrated Load C (lb./ft.) & Deflection D (in.)	24-Inch Span	36-Inch Span
2.0#	C	320	136
2.0#	D	0.25	0.25
Notes The allowable tolerance for weight per square foot is ±5%. Both ends of the tested expanded metal stair tread have been welded to a fixed metal frame.

Gallery

Spiral stairs
Stationary stairs
Industrial platform stairs