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Products > Climbing-Equipment > Stepladders > P400 Series > P412 12 ft Type IA Aluminum Platform Ladder > P412

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P412 12 ft Type IA Aluminum Platform Ladder

Performance Overview

StyleSizeReach HeightLoad Capacity
Platform12 ft18 ft300 lbs

The P412 Aluminum 12 ft Platform Ladder has a duty rating of 300 pounds and features a safety guard rail to encourage proper use. The large platform provides a secure and comfortable work area, and the slip-resistant TRACTION-TRED® steps are double riveted and knee braced. A full set of rear horizontals are spaced one foot apart. The 4 ft, 6 ft and 8 ft models have a duty rating of 375 pounds. These ladders are lightweight and easy to transport.


  • Safety guard rail
  • Large platform provides secure and comfortable work area
  • Shoulder bolt and lock nut on top hinge; 4 solid aluminum rivets attach top to each rail
  • Slip-resistant TRACTION-TRED® steps are double riveted and knee-braced
  • Full set of rear horizontals are spaced one per foot
  • Heavy duty aluminum foot bracket with slip-resistant foot pad
  • Heavy duty internal spreaders
  • Internal spreaders on 8 ft and above


FeatureSize / Details
Size12 ft
Height to Platform12 ft
Reach Height18 ft
Max. Standing Height11 ft 6 in
Load Capacity300 lbs
Approx. Product Width38-3/4 in
CertificationsANSI A14.2 (2007); OSHA
Approx. Spread91-11/16 in
Approx. Overall Ladder Length (Closed)14 ft
Approx. Shipping Weight Lbs.66
Approx. Cu. Ft. Per Unit25.2
Description of Top FeaturesCan Hook
Performance Rating

Package Contents

Part NumberQtyDescription


Front Rails Dimension3-1/8 in
Front Flange Dimension1-1/8 in
Rear Rails Dimension1-3/4 in
Rear Flange Dimension1 in
Steps Dimension3 in

Additional P400 Series Models

Model No.SizeHeight to PlatformReach HeightMax. Standing HeightLoad CapacityApprox. Product WidthBuy Online
P4044 ft4 ft10 ft3 ft 10 in375 lbs24-3/4 in
P4066 ft6 ft12 ft5 ft 9 in375 lbs28-1/4 in
P4088 ft8 ft14 ft7 ft 8 in375 lbs31-3/4 in
P41010 ft10 ft16 ft9 ft 7 in300 lbs35-1/4 in
P41212 ft12 ft18 ft11 ft 6 in300 lbs38-3/4 in
P41414 ft14 ft20 ft13 ft 5 in300 lbs42-1/4 in

What is the weight of the P412 ladder itself?

Asked by: Robert
This ladder weighs 66lbs.
Answered by: Werner Customer Care
Date published: 2015-01-05

Is the platform at a fixed height or can it be poisitoned as work height dictates?

Asked by: Fred W.
The platform ladders have a fixed platform that folds open with the ladder. The platform is at a fixed height, and cannot be adjusted.
Answered by: Werner Customer Care
Date published: 2013-10-22

Can you stand on the platform?

Asked by: pd
Yes, the platform on the all of the platform ladders is designed to be stood on. The platform provides a large, safe area which the user can comfortably stand on to work.
Answered by: Werner Customer Care
Date published: 2015-05-20

What is the total height of the P414 when opened?

I'm looking to use this ladder in a high school auditorium to reach our stage lights. The lights are 15' 4" from the stage to the bottom of the lights and so I'm looking for a ladder that would fit under the lights but could still reach them. Would this ladder fit when opened?
Asked by: James Bagnall
Answered by: Werner Customer Care
Date published: 2016-09-08

Aluminum Type

What type of aluminum is this ladder made out of? For example, Type 6061 Aluminum.
Asked by: Chad N
Answered by: Werner Customer Care
Date published: 2017-07-20

What is the weight of the ladder itself?

Asked by: EAK
The P406 Platform Ladder weighs 33-1/2 pounds.
Answered by: Werner Customer Care
Date published: 2014-09-22

How much does the P410 ladder weigh?

Asked by: Ross
The P410 weighs 54.5lbs.
Answered by: Werner Customer Care
Date published: 2017-08-29

What are the dimensions of the platform itself?

Asked by: EAK
The P406 has a large aluminum standing platform that measures 12-5/8 inches by 18 inches.
Answered by: Werner Customer Care
Date published: 2014-05-17

is the 13.5' height when the ladder is in A-form and do you sell ladders which are taller in A configuration?

Asked by: Sam
Yes the height to the platform would be 13' 5". We do manufacture stepladders up to 20ft.
Answered by: Werner Customer Care
Date published: 2014-10-22

Can you get casters for P414 and total weight is.

I like the podium but tallest podium is 12 feet and really need 14 feet. This platform is the right height and looks to be useful than a normal step ladder.
Asked by: Chuck
The total weight is 79.5 lbs. You cannot get this ladder with casters.
Answered by: Werner Customer Care
Date published: 2016-12-13
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Different types of ladders are designed to keep you safe and productive when climbing or standing. Using the wrong style of ladder or simply ignoring the limitations of climbing equipment can result in a fall or serious injury.
Height is referring to the actual ladder height. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line. The highest standing level is four rungs down from the top. The highest permitted standing level on a stepladder is two steps down from the top.

Reach height is the maximum reach assuming a 5’6” person with a vertical 12” reach.
Ladders are designed to safely hold up to a specific amount of weight. The Werner Performance System defines five different capacities using a color and star rating system. The Duty Rating is defined as the maximum safe load capacity of the ladder. A person’s fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the load capacity.

Werner offers ladder made from fiberglass and aluminum. Each material has characteristics which make it best for certain applications, or one material may simply fit the personal preferences of the user. For example, if working around electricity users should select fiberglass products due to their non-conductive side rails.