Cantilever Ladders | McMaster-Carr

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27 Products

Extended-Reach Rolling Platform Ladders

With a work platform that extends beyond the base, these rolling ladders—also known as cantilever ladders—provide access to hard-to-reach areas, such as the top of large tanks and over conveyors. Wheel brakes keep these ladders stationary while in use. The number of steps listed includes the platform. Shipped assembled, except the handrails and base require assembly.

Note: All ladders meet OSHA and Cal/OSHA dimensional and construction standards. Check local, state, and federal codes, including OSHA, for safe set up and operating practices.

Powder-Coated Steel Ladders with Counterbalanced Base

Counterbalaned Base

Image of Attribute. Front orientation. Contains Annotated. Extended-Reach Rolling Platform Ladders, Powder-Coated Steel Ladders with Counterbalanced Base.

Image of Attribute. Front orientation. Contains Annotated, Border. Extended-Reach Rolling Platform Ladders.

Perforated Step

Serrated Step

Counterbalanced-base ladders use a counterweight to stay stable, so their base isn’t as long as an extended base. As a result, it’s easier to position these ladders over tanks and other equipment where there isn’t room to slide the base underneath. Place the counterweight near the first step before use.

Perforated Step—For regular indoor use, choose a perforated tread. It has raised holes to keep you from slipping.

Serrated Step—For dirty jobsites, choose a serrated tread so debris falls through the steps. It has a sharp, raised surface for the highest level of slip resistance. The surface also scrapes mud from your work boots as you climb. Without boots, you may be uncomfortable standing for long periods.

Conversion Kits—Conversion kits turn counterbalanced-base ladders into extended-base ladders, eliminating the need for a counterweight. Without a counterweight, these ladders are easier to move.

	Ladders																		Conversion Kits		Replacement Rigid Casters			Replacement Swivel Casters			Replacement Casters (Two Swivel and Two Rigid)
		Platform				Overall
	No. of Steps	Ht.	Wd. (E)	Dp. (F)	Max. Climbing Ht.	Ht.	Wd.	Dp.	Wt. Cap., lb.	Overhang Dp.	Ground Clearance Ht.	Color	Wheel Configuration	Brake Type	Assembly	Specs. Met		Each		Each	No. of Casters		Each	No. of Casters		Each		Each
Perforated Steps and Platform



		5	50"	24"	40"	50"	92"	30"	84"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N11	000000000	4250N21	0000000	1	4250N32	000000	1	4250N31	0000000	4250N37	0000000


		6	5 ft.	24"	40"	5 ft.	102"	30"	92"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N12	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
		7	70"	24"	40"	70"	112"	30"	101"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N13	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
		8	80"	24"	40"	80"	122"	30"	109"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N14	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
		9	90"	24"	40"	90"	11 ft.	30"	117"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N16	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
		10	99"	24"	42"	99"	138"	32"	113"	300	42"	6 3/4"	Gray	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N46	00000000	———	0	1	4250N35	00000	1	4250N36	00000	4250N33	000000
		11	110"	24"	42"	110"	148"	32"	119"	300	42"	6 3/4"	Gray	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N47	00000000	———	0	1	4250N35	00000	1	4250N36	00000	4250N33	000000
		12	10 ft.	24"	42"	10 ft.	159"	32"	126"	300	42"	6 3/4"	Gray	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N48	00000000	———	0	1	4250N35	00000	1	4250N36	00000	4250N33	000000


		Serrated Steps and Platform



				5	50"	24"	40"	50"	92"	30"	84"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N41	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000


				6	5 ft.	24"	40"	5 ft.	102"	30"	92"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N42	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
				7	70"	24"	40"	70"	112"	30"	101"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N43	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
				8	80"	24"	40"	80"	122"	30"	109"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N44	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000
				9	90"	24"	40"	90"	11 ft.	30"	117"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N45	00000000	4250N21	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000

Powder-Coated Steel Ladders with Extended Base

Extended Base

Image of Attribute. Front orientation. Contains Annotated. Extended-Reach Rolling Platform Ladders, Powder-Coated Steel Ladders with Extended Base.

Perforated Step

Extended-base ladders don’t have a counterweight, so they’re easier to push around than counterbalanced-base ladders. Their base is longer than a counterbalanced base—but it’s only 8 1/4" high, so it can be rolled underneath conveyors and other machinery.

Perforated Step—For regular indoor use, choose a perforated tread. It has raised holes to keep you from slipping.

Counterweights—Add a counterweight to turn these ladders into counterbalanced-base ladders. With a counterweight in place, you can remove the front base extension and install the front casters on the base section under the stairs.

	Ladders																		Counterweights		Replacement Rigid Casters			Replacement Swivel Casters			Replacement Casters (Two Swivel and Two Rigid)
		Platform				Overall
	No. of Steps	Ht.	Wd. (E)	Dp. (F)	Max. Climbing Ht.	Ht.	Wd.	Dp.	Wt. Cap., lb.	Overhang Dp.	Ground Clearance Ht.	Color	Wheel Configuration	Brake Type	Assembly	Specs. Met		Each		Each	No. of Casters		Each	No. of Casters		Each		Each
Perforated Steps and Platform



		5	50"	24"	40"	50"	92"	41"	84"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N51	000000000	4250N22	0000000	1	4250N32	000000	1	4250N31	0000000	4250N37	0000000


		9	90"	24"	40"	90"	11 ft.	41"	117"	300	40"	6 3/4"	Yellow	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N52	00000000	4250N22	000000	1	4250N32	00000	1	4250N31	000000	4250N37	000000

Powder-Coated Steel Adjustable-Height Ladders with Counterbalanced Base

Counterbalaned Base

Image of Attribute. Front orientation. Contains Annotated. Extended-Reach Rolling Platform Ladders, Powder-Coated Steel, Counterbalanced Base, Adjustable-Height Platform.

Serrated Step

Adjustable-height ladders can be raised or lowered within a 4 ft. range to give you the right height for each job. Use the included leveling jack foot to keep these ladders level on uneven surfaces.

	Ladders																		Replacement Leveling Jacks		Replacement Casters (Two Swivel and Two Rigid)
		Platform				Overall
	No. of Steps	Ht.	Wd. (E)	Dp. (F)	Max. Climbing Ht.	Ht.	Wd.	Dp.	Wt. Cap., lb.	Overhang Dp.	Ground Clearance Ht.	Color	Wheel Configuration	Brake Type	Assembly	Specs. Met		Each		Each		Each
Serrated Steps and Platform



		7	88" to 140"	24"	48"	140"	130" to 182"	69"	108"	300	48"	11"	Gray	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N53	000000000	4250N23	0000000	4250N34	0000000


		11	136" to 188"	24"	48"	188"	178" to 230"	69"	118"	300	48"	11"	Gray	Two Rigid Casters and Two Swivel Casters	Wheel Brake	Partially Assembled	ANSI-ASC A14.7, Cal/OSHA Compliant Title 8 Section 3626, OSHA Compliant 29 CFR 1910 Subpart D	4250N54	00000000	4250N23	000000	4250N34	000000