Expanded Metal Stair Treads – Anti-Skid & High Load Capacity

White coated expanded metal for spiral stair treads)

Expanded metal spiral stair treads

Green coated expanded metal mesh for stair treads in scenic spot

Expanded metal stair treads in tourist area

Bronze colored expanded metal is used for the stair treads in the park

Expanded metal stair treads in the park

Stainless steel expanded mesh stair treads installed outdoors

Expanded mesh stair treads for outdoor

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 our expanded metal product consultant, we can provide you with professional, custom stair tread solutions.

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

Advantage

Protected against corrosion, compatible with harsh weather conditions.
Excellent anti-skid performance makes pedestrians free from falling risks arising from slipping.
Rigid structure offers high load capacity and strong, stable support.
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.
It has a modern structure that will adapt to any environment.

Specification

Material: carbon steel, stainless steel, aluminum.
Surface treatment: galvanized or powdered coated.
Color: black, white, silver, green, any color on require.
Hole Patterns: diamond, hexagon.
Thickness: 0.14–0.32 inch.
Open area: 45% – 77%.
SWD: 1.33–2 inch.
LWD: 4–6 inch.

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
Aluminium	2.00	1.33	5.33	0.39	0.25	48%

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: Aluminium 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.

Expanded Metal Stair Treads Provide Great Safety for Pedestrians Walking on the Stairs.

Load Capacity Diagram

Advantage

Specification

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