Crossover stairs, bridges, and platforms

Safely overcome conveyors, ductwork, conduit,
machinery, pipes, vents, tanks, and virtually any obstacle with OSHA-compliant crossover stair systems.

OSHA compliance

All of our crossover stair systems are designed to comply with the current OSHA regulations for general industry.

The regulations governing our industrial crossover stairs are covered in Standard 1910, Subpart D, Walking-Working Surfaces:

✔ 1910.22 - General requirements

✔ 1910.25 - Stairways

✔ 1910.28 - Duty to have fall protection

✔ 1910.29 - Fall protection systems

Types of industrial crossovers stairs and platforms

Generate a custom quote!

Crossover stairs, also called crossover bridges, are perfect for getting from point A to point B as safely and quickly as possible. While conveyor crossovers are a typical use, their ability to move people over ductwork, conduit, machinery, pipes, vents, tanks, and virtually any obstacle is invaluable. Lapeyre Stair's OSHA-compliant crossover stair systems are available with a choice of bolted access stairs or alternating tread stairs. Crossovers with bolted access stairs are available with steel platforms and stairs with a choice of options. Crossovers with alternating tread stairs are available with 68° stairs (with either steel or aluminum stairs and steel platforms) or 56° (with steel stairs and platforms) with a choice of options.

Standard crossover stairs
Crossovers with bolted access stairs
alternating tread crossover stairs
Crossovers with alternating tread stairs

Download a PDF of our crossover catalog with standard pricing:

How to choose the best type of crossover stair for your application

More space? Choose a crossover with bolted access stairs

Choose crossovers with bolted access stairs for applications without space restrictions. They have standard stairs that require more space to install than alternating tread stairs but they are also the most comfortable to use.

Less space? Choose a crossover with alternating tread stairs

For applications where space is limited, choose crossovers with alternating tread stairs. 68° alternating tread stairs require the least amount of space but the steeper angle is less comfortable to use. The less steep angle of 56° alternating tread stairs is more comfortable to use while also requiring less space.


DIMENSIONS OF
THE OBSTACLE YOU
NEED TO CLEAR
(HEIGHT X LENGTH)
OVERALL LENGTH OF THE CROSSOVER SYSTEMS
THAT MEET YOUR CLEARANCE REQUIREMENT
68° ALTERNATING
TREAD STAIR
56° ALTERNATING
TREAD STAIR
OSHA-COMPLIANT
STANDARD STAIR
42" X 24"
70"
90"
106"
42” X 48”
94"
114"
130"
48” X 24”
75"
98"
126"
48” X 48”
99"
122"
150"
54” X 24”
80"
106"
128"
54” X 48”
110"
136"
158"
60” X 24”
84"
113"
144"
60” X 48”
108"
137"
168"
66” X 24”
89"
122"
146"
66” X 48”
113"
146"
170"
72” X 24”
94"
130"
164"
72” X 48”
118"
154"
188"
78” X 24”
99"
138"
194"
84” X 36”
128"
170"
206"

NOTE: This chart is intended for illustrative purposes only; all measurements are rounded up to the nearest inch.

What does OSHA say about crossovers with alternating tread stairs?

OSHA classifies alternating tread stairs (alternating tread devices) as non-standard stairs and states they are acceptable to use in applications where it is not feasible to use standard stairs.

§1910.25(b)(8)

How to choose the best type of crossover stair for your application

More space? Choose a crossover with bolted access stairs

Choose crossovers with bolted access stairs for applications without space restrictions. They have standard stairs that require more space to install than alternating tread stairs but they are also the most comfortable to use.

Less space? Choose a crossover with alternating tread stairs

For applications where space is limited, choose crossovers with alternating tread stairs. 68° alternating tread stairs require the least amount of space but the steeper angle is less comfortable to use. The less steep angle of 56° alternating tread stairs is more comfortable to use while also requiring less space.

What does OSHA say?

OSHA classifies alternating tread stairs (alternating tread devices) as non-standard stairs and states they are acceptable to use in applications where it is not feasible to use standard stairs.

§1910.25(b)(8)


DIMENSIONS OF
THE OBSTACLE YOU
NEED TO CLEAR
(HEIGHT X LENGTH)
OVERALL LENGTH OF THE CROSSOVER SYSTEMS
THAT MEET YOUR CLEARANCE REQUIREMENT
68° ALTERNATING
TREAD STAIR
56° ALTERNATING
TREAD STAIR
OSHA-COMPLIANT
STANDARD STAIR
42" X 24"
70"
90"
106"
42” X 48”
94"
114"
130"
48” X 24”
75"
98"
126"
48” X 48”
99"
122"
150"
54” X 24”
80"
106"
128"
54” X 48”
110"
136"
158"
60” X 24”
84"
113"
144"
60” X 48”
108"
137"
168"
66” X 24”
89"
122"
146"
66” X 48”
113"
146"
170"
72” X 24”
94"
130"
164"
72” X 48”
118"
154"
188"
78” X 24”
99"
138"
194"
84” X 36”
128"
170"
206"

NOTE: This chart is intended for illustrative purposes only; all measurements are rounded up to the nearest inch.

How to choose the best type of crossover stair for your application

More space? Choose a crossover with bolted access stairs

Choose crossovers with bolted access stairs for applications without space restrictions. They have standard stairs that require more space to install than alternating tread stairs but they are also the most comfortable to use.

Less space? Choose a crossover with alternating tread stairs

For applications where space is limited, choose crossovers with alternating tread stairs. 68° alternating tread stairs require the least amount of space but the steeper angle is less comfortable to use. The less steep angle of 56° alternating tread stairs is more comfortable to use while also requiring less space.

What does OSHA say?

OSHA classifies alternating tread stairs (alternating tread devices) as non-standard stairs and states they are acceptable to use in applications where it is not feasible to use standard stairs.

§1910.25(b)(8)


DIMENSIONS OF
THE OBSTACLE YOU
NEED TO CLEAR
(HEIGHT X LENGTH)
OVERALL LENGTH OF THE CROSSOVER SYSTEMS
THAT MEET YOUR CLEARANCE REQUIREMENT
68° ALTERNATING
TREAD STAIR
56° ALTERNATING
TREAD STAIR
OSHA-COMPLIANT
STANDARD STAIR
42" X 24"
70"
90"
106"
42” X 48”
94"
114"
130"
48” X 24”
75"
98"
126"
48” X 48”
99"
122"
150"
54” X 24”
80"
106"
128"
54” X 48”
110"
136"
158"
60” X 24”
84"
113"
144"
60” X 48”
108"
137"
168"
66” X 24”
89"
122"
146"
66” X 48”
113"
146"
170"
72” X 24”
94"
130"
164"
72” X 48”
118"
154"
188"
78” X 24”
99"
138"
194"
84” X 36”
128"
170"
206"

NOTE: This chart is intended for illustrative purposes only; all measurements are rounded up to the nearest inch.



Product gallery

Crossover stairs

Conveyor crossover ladder

Crossover stairs and platforms

Galvanized steel crossover

Aluminum crossover stairs

Aluminum crossover stairs

Crossover platforms

OSHA crossover stairs

Industrial crossover platforms

Steel platform and stairs

Steel platforms and stairs

Industrial crossover platform

Crossover ladders

Crossover platform stairs

Crossover platform stairs

Crossover platforms

OSHA crossover stairs

Aluminum crossover

Crossover platform stairs

Custom crossover stairs

Aluminum crossover stairs

Conveyor crossover

Crossover ladders and platforms

OSHA crossover stairs

Crossover platforms

Roof access crossover

Crossover platform stair

Customer crossover stairs

Crossover bridge

Crossover ladders

Crossover ladder

Industrial crossover stairs

Steel crossover stairs

Steel platform and stairs

Crossover bridge

OSHA crossover stairs

Industrial crossover platforms

Industrial crossover platform

Crossover platform stairs

Crossover stairs

Crossovers with bolted access stairs

Generate a custom quote!

Stair SLOPE of 45° or less from the horizontal §1910.25(c)(1)

STAIR RISERS with a uniform height of no more than 9.5 inches and a uniform depth of at least 9.5 inches §1910.25(b)(3), §1910.25(c)(2), §1910.25(c)(3)

FALL PROTECTION system with less than 19 inches between horizontal mid-rails and vertical balusters 1910.29(b)(2)(i), §1910.29(b)(2)(iii), §1910.29(b)(2)(iv)

The overall dimensions of ❶ height, ❷ width and ❸ length must fit within the amount of space that is available to install the crossover system. Alternating tread stair crossover systems are OSHA-compliant if you do not have enough space to install a system with standard stairs.

The platform ❹ length and ❺ stair height are determined by the dimensions of the obstacle. These measurements are used to calculate the overall dimensions of the crossover system.

❻ List pricing is based on 36" wide treads
❼ OSHA-compliant 34" handrail height §1910.29(f)(1)(i)
❽ OSHA-compliant 42" guardrail height §1910.29(f)(1)(ii)(B)
❾ OSHA-compliant 2¼" handrail clearance §1910.29(f)(2)

Standard options for crossovers with standard stairs

✔ Carbon steel with safety yellow, iron gray, or gray primer powder coat finish
✔ 36 inch wide treads with open risers
✔ 3/16 inch diamond tread plate platform
✔ 11-gauge diamond tread plate treads
✔ OSHA-compliant guardrail system constructed of 1½ inch round tubing
✔ 3 inch square tubes legs (when required)
✔ All assembly hardware


Additional options are also available

✔ Carbon steel with custom powder coat colors
✔ Carbon steel with hot-dip galvanized finish
✔ 24, 30, 36, and 48 inch wide treads
✔ Additional tread types and tread back pans
✔ Additional platform decking materials
✔ Additional stair heights and platform sizes
✔ Varying stair heights
✔ Additional guardrail system materials
✔ Additional platform configurations

List prices for crossovers with bolted access stairs (standard stairs)

✔ The CLEARANCE WIDTH and OVERALL WIDTH for all standard stair systems is 41½"
✔ The PLATFORM SPAN is equal to the CLEARANCE SPAN on all standard stair systems less than 72" in height
✔ Legs are required for systems with heights of 72" and up
✔ The CLEARANCE SPAN for systems with legs is equal to the PLATFORM SPAN minus 11"

STAIR
HEIGHT		 CLEARANCE
HEIGHT		 OVERALL
HEIGHT		 PLATFORM
SPAN		 CLEARANCE
SPAN		 OVERALL
LENGTH		 LIST
PRICE
24” 23.8125” 66” 24” 72” $2,373.82
30” 78” $2,543.15
36” 84” $2,712.46
42” 90” $2,881.78
48” 96” $3,051.10
54” 102” $3,220.42
30” 29.8125” 72” 24” 87” $2,870.18
30” 93” $3,039.50
36” 99” $3,208.82
42” 105” $3,378.14
48” 111” $3,547.46
54” 117” $3,716.78
36” 35.8125” 78” 24” 87” $2,905.02
30” 93” $3,074.34
36” 99” $3,243.66
42” 105” $3,412.98
48” 111” $3,582.30
54” 117” $3,751.62
42” 41.8125” 84” 24” 106” $3,301.92
30” 112” $3,471.24
36” 118” $3,640.56
42” 124” $3,809.88
48” 130” $3,979.20
54” 136” $4,148.52
48” 47.8125” 90” 24” 126” $4,095.34
30” 132” $4,264.66
36” 138” $4,433.98
42” 144” $4,603.30
48” 150” $4,772.62
54” 156” $4,941.94
54” 53.8125” 96” 24” 128” $4,146.62
30” 134” $4,315.94
36” 140” $4,485.26
42” 146” $4,654.58
48” 152” $4,823.90
54” 158” $4,993.22
60” 59.8125” 102” 24” 144" $4,829.08
30” 150" $4,998.40
36” 156" $5,167.72
42” 162" $5,337.04
48” 168" $5,506.36
54” 174" $5,678.68
66” 65.8125” 108” 24” 146" $4,879.66
30” 152" $5,048.98
36” 158" $5,218.30
42” 164" $5,387.62
48” 170" $5,556.94
54” 176" $5,726.26
72” 71.8125” 114” 24” 164" $5,305.96
30” 170" $5,475.28
36” 176" $5,644.60
42” 182" $5,813.92
48” 188" $5,983.24
54” 194" $6,152.56
78” 77.8125” 120” 24” 13” 182" $6,734.60
30” 19” 188" $6,903.92
36” 25” 194" $7,073.24
42” 31” 200" $7,242.56
48” 37” 206" $7,411.88
54” 43” 212" $7,581.20
84” 83.8125” 126” 24” 13” 182" $6,836.66
30” 19” 188" $7,005.98
36” 25” 194" $7,175.30
42” 31” 200" $7,344.62
48” 37” 206" $7,513.94
54” 43” 212" $7,683.26

*All pricing information is presented in good faith and believed to be correct at the time of publishing. We reserve the right to change prices at any time without notice. List prices are all-inclusive based on standard options. Prices do not include installation hardware or shipping costs.

Crossovers with alternating tread stairs

Stair SLOPE of either 56° or 68° from the horizontal §1910.25(f)

TREADS are at least 8½ inches deep with open risers and at least 7 inches wide at the leading edge §1910.25(f)(3), §1910.25(f)(4), §1910.25(f)(5)

FALL PROTECTION system with less than 19 inches between horizontal mid-rails OSHA §1910.29(b)(2)

The overall dimensions of ❶ height, ❷ width and ❸ length must fit within the amount of space that is available to install the crossover system. If you have enough room to install a crossover system with standard stairs, that is the OSHA-preferred solution.

The platform ❹ length and ❺ stair height are determined by the dimensions of the obstacle. These measurements are used to calculate the overall dimensions of the crossover system.

Standard options for crossovers with alternating tread stairs

✔ Carbon steel with safety yellow, iron gray, or gray primer powder coat finish
✔ 56° or 68° degree alternating tread stairs
✔ Carbon steel with safety yellow, iron gray, or gray primer powder coat finish
✔ Diamond plate platform decking
✔ OSHA-compliant 42" high guardrails constructed of 1½ inch round tubing
✔ Crossover bracing kit
✔ All assembly hardware


Additional options are also available

✔ Carbon steel with custom powder coat colors
✔ Carbon steel with hot-dip galvanized finish
✔ Grade 304 stainless steel
✔ 68° aluminum alternating tread stairs
✔ Back pans for stairs
✔ Safety gates
✔ Additional stair heights and platform sizes
✔ Varying stair heights
✔ Additional platform decking and configurations


Crossover ladder
Crossover ladders and platforms
Aluminum crossover stairs

Crossover bracing kit

Crossovers with alternating tread stairs require bracing to prevent swaying. The bracing kit for these systems includes stainless steel brackets and hardware for the upper and lower connections plus custom tubing in the same material and finish as your crossover system.

We need the following information to calculate bracing specifications. Contact us for assistance with determining the optimal spread and brace angles for your system.

✔ Dimensions of obstacles surrounding the system
✔ Optimal spread angle (0° to 20° for 56° stairs; 0° to 10° for 68° stairs)
✔ Optimal brace angle (20° to 30° from the vertical plane)

The cost of the bracing kit is included in the list price for crossovers with alternating tread stairs. Subtract $328.22 from the list price if you will provide your own bracing for the system.

Optional accessories for crossovers with alternating tread stairs

Safety gates

Safety gates provide additional security at the top of alternating tread stairs. They attach to the platform rails with reversible hinges and provide a 180° gate swing.

$344.63/gate: Carbon steel with standard powder coat colors
$356.13/gate: Carbon steel with hot-dip galvanized finish
$648.22/gate: Grade 304 stainless steel with mill finish

Backpans

Minimize the risk of damage to workers and equipment beneath your crossover system by adding backpans to the alternating tread stairs. Backpans bolt under the stairs to form a solid barrier behind the treads that spans the height of the stair and provides protection from falling objects.

Pricing for backpans is based on the stair height.



List prices for crossovers with alternating tread stairs

  • The CLEARANCE WIDTH and OVERALL WIDTH for all alternating tread stair systems is 24"
  • The PLATFORM SPAN is equal to the CLEARANCE SPAN on all alternating tread stair systems
  • The OVERALL HEIGHT is the stair height plus 42"
  • The CLEARANCE HEIGHT is the stair height minus 3/16"
  • The minimum height for alternating tread stair systems with 56° stairs is 36"
  • The minimum height for steel alternating tread stair systems with 68° stairs is 42"
  • Aluminum alternating tread stair systems with 68° stairs are available in heights starting at 24"
56° STAIRS 68° STAIRS
STAIR
HEIGHT		 PLATFORM/
CLEARANCE SPAN		 OVERALL
LENGTH		 OVERALL
LENGTH		 LIST
PRICE
36” 24” 81.85” $2,932.02
30” 87.85” $3,050.03
36” 93.85” $3,168.03
42” 99.85” $3,286.03
48” 105.85” $3,404.03
54” 111.85” $3,522.01
42” 24” 90.214” 70.15” $3,165.06
30” 96.214” 76.15” $3,283.07
36” 102.214” 82.15” $3,401.07
42” 108.214” 88.15” $3,519.07
48” 114.214” 94.15” $3,637.07
54” 120.214” 100.15” $3,755.05
48” 24” 98.5” 75.322” $3,398.10
30” 104.5” 81.322” $3,516.11
36” 110.5” 87.322” $3,634.11
42” 116.5” 93.322” $3,752.11
48” 122.5” 99.322” $3,870.11
54” 128.5” 105.322” $3,988.09
54” 24” 106.74” 80.402” $3,631.14
30” 112.74” 86.402” $3,749.15
36” 118.74” 92.402” $3,867.15
42” 124.74” 98.402” $3,985..15
48” 130.74” 104.402” $4,103.15
54” 136.74” 110.402” $4,221.13
60” 24” 113.822” 84.556” $3,864.18
30” 119.822” 90.556” $3,982.19
36” 125.822” 96.556” $4,100.19
42” 131.822” 102.556” $4,218.19
48” 137.822” 108.556” $4,336.19
54” 143.822” 114.556” $4,454.17
66” 24” 122.14” 89.664” $4,097.22
30” 128.14” 95.664” $4,215.23
36” 134.14” 101.664” $4,333.23
42” 140.14” 107.664” $4,451.23
48” 146.14” 113.664” $4,569.23
54” 152.14” 119.664” $4,687.21
72” 24” 130.414” 94.716” $4,330.26
30” 136.414” 100.716” $4,448.27
36” 142.414” 106.716” $4,566.27
42” 148.414” 112.716” $4,684.27
48” 154.414” 118.716” $4,802.27
54” 160.414” 124.716” $4,920.25
78” 24” 138.656” 99.724” $4,563.30
30” 144.656” 105.724” $4,681.31
36” 150.656” 111.724” $4,799.31
42” 156.656” 117.724” $4,917.31
48” 162.656” 123.724” $5,035.31
54” 168.656” 129.724” $5,153.29
84” 24” 146.872” 104.088” $4,796.34
30” 152.872” 110.088” $4,914.36
36” 158.872” 116.088” $5,032.35
42” 164.872” 122.088” $5,150.35
48” 170.872” 128.088” $5,268.35
54” 176.872” 134.088” $5,386.33

List prices are for carbon steel alternating tread stairs with standard powder coat colors.

For a budgetary estimate on other options, increase the list price by the applicable percent*
+16%

CUSTOM COLOR
OR GALVANIZED
+89%

STAINLESS
STEEL
+25%

ALUMINUM
(68° ONLY)

*All pricing information is presented in good faith and believed to be correct at the time of publishing. We reserve the right to change prices at any time without notice. List prices are all-inclusive based on standard options. Prices do not include installation hardware or shipping costs. Calculations for additional options on alternating tread stair crossover systems are for budgetary purposes only; contact us for an exact quote.

Download a PDF of our crossover catalog with standard pricing:

Crossovers with bolted access stairs

Generate a custom quote!

Stair SLOPE of 45° or less from the horizontal §1910.25(c)(1)

STAIR RISERS with a uniform height of no more than 9.5 inches and a uniform depth of at least 9.5 inches §1910.25(b)(3), §1910.25(c)(2), §1910.25(c)(3)

FALL PROTECTION system with less than 19 inches between horizontal mid-rails and vertical balusters 1910.29(b)(2)(i), §1910.29(b)(2)(iii), §1910.29(b)(2)(iv)

The overall dimensions of ❶ height, ❷ width and ❸ length must fit within the amount of space that is available to install the crossover system. Alternating tread stair crossover systems are OSHA-compliant if you do not have enough space to install a system with standard stairs.

The platform ❹ length and ❺ stair height are determined by the dimensions of the obstacle. These measurements are used to calculate the overall dimensions of the crossover system.

❻ List pricing is based on 36" wide treads
❼ OSHA-compliant 34" handrail height §1910.29(f)(1)(i)
❽ OSHA-compliant 42" guardrail height §1910.29(f)(1)(ii)(B)
❾ OSHA-compliant 2¼" handrail clearance §1910.29(f)(2)

Standard options for crossovers with standard stairs

  • Carbon steel with safety yellow, iron gray, or gray primer powder coat finish
  • 36 inch wide treads with open risers
  • 3/16 inch diamond tread plate platform
  • 11-gauge diamond tread plate treads
  • OSHA-compliant guardrail system constructed of 1½ inch round tubing
  • 3 inch square tubes legs (when required)
  • All assembly hardware

Additional options are also available

  • Carbon steel with custom powder coat colors
  • Carbon steel with hot-dip galvanized finish
  • 24, 30, 36, and 48 inch wide treads
  • Additional tread types and tread back pans
  • Additional platform decking materials
  • Additional stair heights and platform sizes
  • Varying stair heights
  • Additional guardrail system materials
  • Additional platform configurations

List prices for crossovers with bolted access stairs (standard stairs)

  • The CLEARANCE WIDTH and OVERALL WIDTH for all standard stair systems is 41½"
  • The PLATFORM SPAN is equal to the CLEARANCE SPAN on all standard stair systems less than 72" in height
  • The OVERALL HEIGHT is the stair height plus 42"
  • The CLEARANCE HEIGHT is the stair height minus 3/16"
  • Legs are required for systems with heights of 72" and up; the CLEARANCE SPAN for these systems is the PLATFORM SPAN minus 11"
STAIR
HEIGHT		 PLATFORM
SPAN		 CLEARANCE
SPAN		 OVERALL
LENGTH		 LIST
PRICE
24” 24” 72” $2,004.50
30” 78” $2,192.85
36” 84” $2,381.20
42” 90” $2,569.56
48” 96” $2,757.91
54” 102” $2,946.26
30” 24” 87” $2,317.02
30” 93” $2,505.37
36” 99” $2,693.72
42” 105” $2,882.07
48” 111” $3,070.42
54” 117” $3,258.78
36” 24” 87” $2,348.37
30” 93” $2,536.72
36” 99” $2,725.07
42” 105” $2,913.42
48” 111” $3,101.77
54” 117” $3,290.12
42” 24” 106” $2,567.55
30” 112” $2,755.90
36” 118” $2,944.26
42” 124” $3,132.61
48” 130” $3,320.96
54” 136” $3,509.31
48” 24” 126” $3,124.55
30” 132” $3,312.91
36” 138” $3,501.26
42” 144” $3,689.61
48” 150” $3,877.96
54” 156” $4,066.31
54” 24” 128” $3,170.72
30” 134” $3,359.07
36” 140” $3,547.42
42” 146” $3,735.77
48” 152” $3,924.12
54” 158” $4,112.48
60” 24” 144" $3,627.78
30” 150" $3,816.13
36” 156" $4,004.48
42” 162" $4,192.84
48” 168" $4,381.19
54” 174" $4,569.54
66” 24” 146" $3,673.32
30” 152" $3,861.67
36” 158" $4,050.03
42” 164" $4,238.38
48” 170" $4,426.73
54” 176" $4,615.08
72” 24” 164" $3,918.96
30” 170" $4,107.31
36” 176" $4,295.67
42” 182" $4,484.02
48” 188" $4,672.37
54” 194" $4,860.72
78” 24” 13” 182" $5,062.51
30” 19” 188" $5,250.86
36” 25” 194" $5,439.21
42” 31” 200" $5,627.56
48” 37” 206" $5,815.92
54” 43” 212" $6,004.27
84” 24” 13” 182" $5,157.22
30” 19” 188" $5,345.57
36” 25” 194" $5,533.92
42” 31” 200" $5,722.27
48” 37” 206" $5,910.63
54” 43” 212" $6,098.98

*All pricing information is presented in good faith and believed to be correct at the time of publishing. We reserve the right to change prices at any time without notice. List prices are all-inclusive based on standard options. Prices do not include installation hardware or shipping costs.

Crossovers with alternating tread stairs

Stair SLOPE of either 56° or 68° from the horizontal §1910.25(f)

TREADS are at least 8½ inches deep with open risers and at least 7 inches wide at the leading edge §1910.25(f)(3), §1910.25(f)(4), §1910.25(f)(5)

FALL PROTECTION system with less than 19 inches between horizontal mid-rails OSHA §1910.29(b)(2)

The overall dimensions of ❶ height, ❷ width and ❸ length must fit within the amount of space that is available to install the crossover system. If you have enough room to install a crossover system with standard stairs, that is the OSHA-preferred solution.

The platform ❹ length and ❺ stair height are determined by the dimensions of the obstacle. These measurements are used to calculate the overall dimensions of the crossover system.

Standard options for crossovers with alternating tread stairs

  • Carbon steel with safety yellow, iron gray, or gray primer powder coat finish
  • 56° or 68° degree alternating tread stairs
  • Carbon steel with safety yellow, iron gray, or gray primer powder coat finish
  • Diamond plate platform decking
  • OSHA-compliant 42" high guardrails constructed of 1½ inch round tubing
  • Crossover bracing kit
  • All assembly hardware

Additional options are also available

  • Carbon steel with custom powder coat colors
  • Carbon steel with hot-dip galvanized finish
  • Grade 304 stainless steel
  • 68° aluminum alternating tread stairs
  • Back pans for stairs
  • Safety gates
  • Additional stair heights and platform sizes
  • Varying stair heights
  • Additional platform decking and configurations

Crossover ladder
Crossover ladders and platforms
Aluminum crossover stairs

Crossover bracing kit

Crossovers with alternating tread stairs require bracing to prevent swaying. The bracing kit for these systems includes stainless steel brackets and hardware for the upper and lower connections plus custom tubing in the same material and finish as your crossover system.

We need the following information to calculate bracing specifications. Contact us for assistance with determining the optimal spread and brace angles for your system.

  • Dimensions of obstacles surrounding the system
  • Optimal spread angle (0° to 20° for 56° stairs; 0° to 10° for 68° stairs)
  • Optimal brace angle (20° to 30° from the vertical plane)

The cost of the bracing kit is included in the list price for crossovers with alternating tread stairs. Subtract $328.22 from the list price if you will provide your own bracing for the system.

Optional accessories for crossovers with alternating tread stairs

Safety gates

Safety gates provide additional security at the top of alternating tread stairs. They attach to the platform rails with reversible hinges and provide a 180° gate swing.

$344.63/gate: Carbon steel with standard powder coat colors
$356.13/gate: Carbon steel with hot-dip galvanized finish
$648.22/gate: Grade 304 stainless steel with mill finish

Backpans

Minimize the risk of damage to workers and equipment beneath your crossover system by adding backpans to the alternating tread stairs. Backpans bolt under the stairs to form a solid barrier behind the treads that spans the height of the stair and provides protection from falling objects.

Pricing for backpans is based on the stair height.


List prices for crossovers with alternating tread stairs

  • The CLEARANCE WIDTH and OVERALL WIDTH for all alternating tread stair systems is 24"
  • The PLATFORM SPAN is equal to the CLEARANCE SPAN on all alternating tread stair systems
  • The OVERALL HEIGHT is the stair height plus 42"
  • The CLEARANCE HEIGHT is the stair height minus 3/16"
  • The minimum height for alternating tread stair systems with 56° stairs is 36"
  • The minimum height for steel alternating tread stair systems with 68° stairs is 42"
  • Aluminum alternating tread stair systems with 68° stairs are available in heights starting at 24"
56° STAIRS 68° STAIRS
STAIR
HEIGHT		 PLATFORM/
CLEARANCE SPAN		 OVERALL
LENGTH		 OVERALL
LENGTH		 LIST
PRICE
36” 24” 81.85” $2,932.02
30” 87.85” $3,050.03
36” 93.85” $3,168.03
42” 99.85” $3,286.03
48” 105.85” $3,404.03
54” 111.85” $3,522.01
42” 24” 90.214” 70.15” $3,165.06
30” 96.214” 76.15” $3,283.07
36” 102.214” 82.15” $3,401.07
42” 108.214” 88.15” $3,519.07
48” 114.214” 94.15” $3,637.07
54” 120.214” 100.15” $3,755.05
48” 24” 98.5” 75.322” $3,398.10
30” 104.5” 81.322” $3,516.11
36” 110.5” 87.322” $3,634.11
42” 116.5” 93.322” $3,752.11
48” 122.5” 99.322” $3,870.11
54” 128.5” 105.322” $3,988.09
54” 24” 106.74” 80.402” $3,631.14
30” 112.74” 86.402” $3,749.15
36” 118.74” 92.402” $3,867.15
42” 124.74” 98.402” $3,985..15
48” 130.74” 104.402” $4,103.15
54” 136.74” 110.402” $4,221.13
60” 24” 113.822” 84.556” $3,864.18
30” 119.822” 90.556” $3,982.19
36” 125.822” 96.556” $4,100.19
42” 131.822” 102.556” $4,218.19
48” 137.822” 108.556” $4,336.19
54” 143.822” 114.556” $4,454.17
66” 24” 122.14” 89.664” $4,097.22
30” 128.14” 95.664” $4,215.23
36” 134.14” 101.664” $4,333.23
42” 140.14” 107.664” $4,451.23
48” 146.14” 113.664” $4,569.23
54” 152.14” 119.664” $4,687.21
72” 24” 130.414” 94.716” $4,330.26
30” 136.414” 100.716” $4,448.27
36” 142.414” 106.716” $4,566.27
42” 148.414” 112.716” $4,684.27
48” 154.414” 118.716” $4,802.27
54” 160.414” 124.716” $4,920.25
78” 24” 138.656” 99.724” $4,563.30
30” 144.656” 105.724” $4,681.31
36” 150.656” 111.724” $4,799.31
42” 156.656” 117.724” $4,917.31
48” 162.656” 123.724” $5,035.31
54” 168.656” 129.724” $5,153.29
84” 24” 146.872” 104.088” $4,796.34
30” 152.872” 110.088” $4,914.36
36” 158.872” 116.088” $5,032.35
42” 164.872” 122.088” $5,150.35
48” 170.872” 128.088” $5,268.35
54” 176.872” 134.088” $5,386.33

List prices are for carbon steel alternating tread stairs with standard powder coat colors.

For a budgetary estimate on other options, increase the list price by the applicable percent*
+16%

CUSTOM COLOR
OR GALVANIZED
+89%

STAINLESS
STEEL
+25%

ALUMINUM
(68° ONLY)

*All pricing information is presented in good faith and believed to be correct at the time of publishing. We reserve the right to change prices at any time without notice. List prices are all-inclusive based on standard options. Prices do not include installation hardware or shipping costs. Calculations for additional options on alternating tread stair crossover systems are for budgetary purposes only; contact us for an exact quote.

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