Type IAA Step Stools | McMaster-Carr

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20 Products

Step Stools


Style 1	Style 4

Style 7

Get a secure and stable step up.

Aluminum and plastic stools are lighter than steel or fiberglass stools, which makes them easy to move between work areas. Perforated, coated, and ribbed steps provide good slip resistance while being easy on your shoes.

Note: Stools that have OSHA or Cal/OSHA specifications listed meet dimensional and construction standards. Check local, state, and federal codes, including OSHA, for safe set up and operating practices.

Powder-Coated Steel—Powder-coated steel stools are durable and withstand heavy use. Their powder coating helps prevent rust.

Fiberglass—Fiberglass stools are nonconductive, so they’re ideal for electrical work.

304 Stainless Steel—304 stainless steel stools stand up to repeated washdowns and resist damage from grease and chemicals.

With Perforated Steps—Perforated steps also allow liquids and debris to pass through.

Nonskid Feet—Stools with nonskid pads have wider feet than other stools. They’re less likely to get stuck on bar grating and other small openings.

					Overall			Top Step
	Style	No. of Steps	Wt. Cap., lb.	Ladder Duty Rating	Ht. (A)	Wd. (B)	Dp. (C)	Ht.	Wd.	Dp.	Ground Clearance Ht.	Assembly	Color	Features	Specs. Met		Each
Powder-Coated Steel







				With Perforated Steps

				1	1	375	Type IAA	11"	19"	17"	10"	16"	14"	3 1/4"	Assembled	Gray	Nonskid Feet	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1910.23	80135T46	0000000




						With Vinyl-Coated Steps

						1	1	375	Type IAA	11"	19"	17"	10"	16"	14"	3 1/4"	Assembled	Gray	Nonskid Feet	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1910.23	80135T48	000000


						Aluminum







										With Ribbed Steps

										4	1	375	Type IAA	13"	15"	16"	13"	14"	9 1/4"	—	Assembled	—	Nonskid Feet	OSHA Compliant 29 CFR 1926.1053	8122T509	000000


										Fiberglass







														With Ribbed Steps

														4	1	375	Type IAA	13"	15"	16"	13"	14"	9 1/4"	—	Assembled	Orange	Nonskid Feet	OSHA Compliant 29 CFR 1910.23	79945T13	000000


														304 Stainless Steel







																		With Vinyl-Coated Steps

																		7	1	375	Type IAA	8"	14 1/2"	11 1/2"	7"	14"	10"	—	Assembled	—	Nonskid Feet	OSHA Compliant 29 CFR 1910.23	7927T69	000000


																		7	1	375	Type IAA	8"	18"	14"	7"	18"	12"	—	Assembled	—	Nonskid Feet	OSHA Compliant 29 CFR 1910.23	7927T61	000000
																		7	1	375	Type IAA	8"	31"	14"	7"	30"	12"	—	Assembled	—	Nonskid Feet	OSHA Compliant 29 CFR 1910.23	7927T63	000000

Replacement Feet

	Pkg. Qty.		Pkg.
Replacement Rubber Nonskid Feet for Style 7 Step Stools	4	7927T51	000000

Foldable Step Stools

Style 4

Fold for easy transport and storage.

Note: Step stools that meet OSHA or Cal/OSHA specifications adhere to dimensional and construction standards. Check local, state, and federal codes, including OSHA, for safe set up and operating practices.

Style 4

Style 4 stools have additional bracing for higher capacities than Style 3, so they’re a more common choice for industrial applications.

Aluminum—Aluminum stools are lighter weight than steel and fiberglass, making them easier to move between work areas.

Fiberglass—Fiberglass stools are nonconductive for use in electrical work.

With Ribbed Steps—Stools with ribbed steps have good slip resistance and are gentle on your footwear.

Type IAA—Type IAA stools are tested to hold up to 375 lbs.

				Overall			Top Step			Middle Step		Bottom Step
	No. of Steps	Wt. Cap., lb.	Ladder Duty Rating	Ht. (A)	Wd. (B)	Dp. (C)	Ht.	Wd.	Dp.	Wd.	Dp.	Wd.	Dp.	Assembly	Color	Specs. Met		Each
Aluminum







				With Ribbed Steps

				2	375	Type IAA	23"	18"	21"	23"	14"	9 1/4"	—	—	17 1/4"	6"	Assembled	—	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1926.1053 ANSI-ASC A14.2	8122T585	0000000


				3	375	Type IAA	33"	20"	27"	33"	14"	9 1/4"	19 3/4"	6"	19 3/4"	6"	Assembled	—	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1926.1053 ANSI-ASC A14.2	8122T673	000000


				Fiberglass







								With Ribbed Steps

								2	375	Type IAA	23"	18"	21"	23"	14"	9 1/4"	—	—	17 1/4"	6"	Assembled	Orange	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1926.1053 ANSI-ASC A14.2	79945T166	000000


								3	375	Type IAA	33"	20"	27"	33"	14"	9 1/4"	19 3/4"	6"	19 3/4"	6"	Assembled	Orange	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1926.1053 ANSI-ASC A14.2	79945T362	000000

Foldable Step Stools with Handrail


Style 1	Style 2	Style 3

Grab the handrail for stability. These stools fold for easy transport and storage.

Perforated, rubber-coated, and ribbed steps provide good slip resistance and are gentle on your footwear.

Powder-Coated Steel—Powder-coated steel stools are rust-resistant and durable for regular use.

Aluminum—Aluminum stools are lighter than steel and fiberglass, making them easier to move between work areas.

Fiberglass—Fiberglass stools are nonconductive for use in electrical work.

With Perforated Steps—Perforated steps also allow liquids to drain and debris to fall through.

Style 1—Style 1 stools have a flat back and can be positioned flush against your shelving or workspace.

Two Rigid Casters—Stools with casters can be moved by tilting them. They remain stationary when upright.

					Overall			Top Step			Middle Step		Bottom Step
	Style	No. of Steps	Wt. Cap., lb.	Ladder Duty Rating	Ht. (A)	Wd. (B)	Dp. (C)	Ht. (D)	Wd.	Dp.	Wd.	Dp.	Wd.	Dp.	Assembly	Wheel Configuration	Color	Features	Includes	Specs. Met		Each
Powder-Coated Steel







				With Perforated Steps

				1	2	450	Type IAA	44"	21"	20"	20"	16"	10"	—	—	16"	7"	Unassembled	Two Rigid Casters	Gray	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.2	9754T75	0000000


				1	3	450	Type IAA	54"	21"	27"	30"	16"	10"	16"	7"	16"	7"	Unassembled	Two Rigid Casters	Gray	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.2	9754T76	000000
				1	4	450	Type IAA	64"	21"	34"	40"	16"	10"	16"	7"	16"	7"	Unassembled	Two Rigid Casters	Gray	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.2	9754T77	000000


				Aluminum







								With Ribbed Steps

								3	2	375	Type IAA	53"	18"	21"	23"	14"	9 1/4"	—	—	17 1/4"	6"	Assembled	Two Rigid Casters	—	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.11	8122T754	000000


								3	3	375	Type IAA	64"	20"	27"	34"	14"	9 1/4"	19 3/4"	6"	19 3/4"	6"	Assembled	Two Rigid Casters	—	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.11	8122T833	000000


								Fiberglass







												With Ribbed Steps

												2	3	375	Type IAA	42"	21"	33"	26"	13 3/4"	8 1/2"	14"	9"	14"	9"	Assembled	—	Green	Handrail, Nonskid Feet	Handrail-Mounted Tool Tray	Cal/OSHA Compliant Title 8 Section 3276 OSHA Compliant 29 CFR 1910.23 OSHA Compliant 29 CFR 1926.1053 ANSI-ASC A14.5	79945T201	000000


												3	2	375	Type IAA	53"	18"	21"	23"	14"	9 1/4"	—	—	17 1/4"	6"	Assembled	Two Rigid Casters	Orange	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.11	79945T601	000000
												3	3	375	Type IAA	64"	20"	27"	34"	14"	9 1/4"	19 3/4"	6"	19 3/4"	6"	Assembled	Two Rigid Casters	Orange	Handrail, Nonskid Feet	—	OSHA Compliant 29 CFR 1910.23 ANSI-ASC A14.11	79945T697	000000