Metal stair treads are cut from our expanded metal lines which gives them unusual strength and light in weight. Our stair treads feature a slip resistant surface while distributing the load uniformly. They are ideal for an industrial slippery stair application and are economical to purchase.

Metal Stair Treads Materials

• Carbon Steel
• Aluminum
• Stainless Steel

Metal Stair Treads Features & Benefits

• Produced from steel plate with no welds or joints
• Large open area
• Available in various types and sizes to meet a wide variety of applications
• Can be fabricated with different nosings and materials

Metal Stair Treads Strengths

• Superior load characteristics
• Meets the deflection requirements of Federal Specification RR-G661b on clear spans up to 40 inches and less than 100 pounds per square foot uniform load

Metal Stair Treads Low Cost

• More economical to use stair treads with Expanded Metal Grating than other types of steel grating
• Savings of up to 50%

Metal Stair Treads Safety

• Provides a natural slip resistant walking surface
• Open area allows snow, water and oil to drain off easily, thus maintaining the slip resistant surface
• Allows excellent passage of heat and light

Metal Stair Treads Handling & Job Fabrication

• Convenient sheet sizes make for easy installation even though the structure has already been constructed
• Job fabrication and fitting is easy and can be done with one or two men using simple cutting and welding equipment

Carbon Steel – Grating

Style

Lbs. Per
100 Sq. Ft.

Standard
Sheet Size
(Feet)

Design
Size
(Inches)

Opening
Size
(Inches)

Size of
Strands
in Inches

Overall
Thickness
Inches

No. of
Designs
Per
Foot

Percent
Open
Area

Plain

Galv.
Wt.

Width
SWD

Length
LWD

SWD

LWD

SWD

LWD

Width

Thickness

SWD

LWD

3 lb.

300

3.15

4 & 6

8 & 10

1.330

5.330

0.940

3.440

0.264

0.183

0.540

9.0

2.250

60

3.14 lb.

314

3.30

4 & 6

8 & 10

2.000

6.000

1.625

4.880

0.312

0.250

0.656

6.0

2.000

69

4 lb.

400

4.18

4 & 6

8 & 10

1.330

5.330

0.940

3.440

0.300

0.215

0.618

9.0

2.250

55

4.27 lb.

427

4.46

4 & 6

8 & 10

1.410

4.000

1.000

2.880

0.300

0.250

0.625

8.5

3.000

58

5 lb.

500

5.20

4 & 6

8 & 10

1.330

5.330

0.813

3.380

0.331

0.250

0.655

9.0

2.250

50

6.25 lb.

625

6.47

4 & 6

8 & 10

1.410

5.330

0.813

3.380

0.350

0.312

0.715

8.5

2.250

50

7 lb.

700

7.25

4 & 6

8 & 10

1.410

5.330

0.813

3.380

0.391

0.312

0.740

8.5

2.250

45

Stainless 304 – Grating

Style

Lbs. Per
100 Sq. Ft.

Standard
Sheet Size
(Feet)

Design
Size
(Inches)

Opening
Size
(Inches)

Strand
Size
(Inches)

Overall
Thickness

No. of
Designs
Per Sq.
Foot

%
Open
Area

Plain

--

Width
SWD

Length
LWD

SWD

LWD

SWO

LWO

Width

Thickness
Gauge

SWD

LWD

3.3 lbs.

3.3

--

4

10

2.00

6.0

1.625

4.88

.312

.250

.656

6

2

69

4.5 lbs.

4.5

--

4

10

1.41

4.0

1.000

2.88

.300

.250

.625

8.5

3

58

Aluminum 5052 H-32 – Grating

Style

Lbs. Per
100 Sq. Ft.

Standard
Sheet Size
(Feet)

Design
Size
(Inches)

Opening
Size
(Inches)

Strand
Size
(Inches)

Overall
Thickness

No. of
Designs
Per Sq.
Foot

%
Open
Area

Plain

--

Width
SWD

Length
LWD

SWD

LWD

SWO

LWO

Width

Thickness

SWD

LWD

2.0 lbs.

2.0

--

4
5

8
10 & 12

1.33

5.33

.940

3.44

.387

.250

.730

9

2.25

48

SIZE

WT. LBS.

OVERALL
THICKNESS

LOAD CAP*

#4 UNITREAD

8-1/2" x 24"

4-1/2"

10.7#

2"

1000#

#4 UNITREAD

8-1/2" x 30"

4-1/2"

12.9#

2"

925#

#5 UNITREAD

9-3/4" x 30"

7"

16.2#

2"

925#

SIZE

WT. LBS.

OVERALL
THICKNESS

LOAD CAP*

#4 TREAD

8-1/2" x 24"

4-1/2"

12.8#

2-1/2"

1650#

#4 TREAD

8-1/2" x 30"

4-1/2"

15.6#

2-7/16"

1100#

#5 TREAD

9-3/4" x 30"

6"

18.6#

2-5/8"

1025#