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7312 12 ft Type IAA Fiberglass Step Ladder

Performance Overview

StyleSizeReach HeightLoad Capacity
Single-Sided12 ft16 ft375 lbs

The 7312 Fiberglass 12 ft Step Ladder has a duty rating of 375 pounds and features heavy duty aluminum HolsterTop. With a full set of horizontals and heavy duty internal spreaders, these ladders are built for the long haul. The molded external rail shields and the EDGE® bracing system help decrease damage to the rails. The slip-resistant TRACTION-TRED® steps are single riveted and have extra wide knee braces. The GLAS*MARK® Violator stripes increase the visibility of the ladder on the jobsite. Fiberglass rails are non-conductive for working near electricity.


  • Extra heavy duty aluminum HolsterTop with thick side plates
  • Shoulder bolt and lock nut on top hinge; 4 solid aluminum rivets attach top to each front rail
  • Slip-resistant TRACTION-TRED® steps are single riveted and have extra wide knee braces
  • Heavy duty internal spreaders
  • Full set of rear horizontals spaced one per foot
  • SPILL-PROOF® Plastic pail shelf automatically closes with Step Ladder
  • EDGE® bracing system helps to decrease damage to rail
  • Molded external rail shield helps protect against abrasion damage
  • Slip-resistant foot pads attached to the EDGE® structure
  • Plastic external rail shield helps protect against abrasion damage
  • Every rivet backed up by metal, metal plates or washers to protect rails
  • Optional manual pail shelf kit, model no. PK76-9 or automatic closing pail shelf kit model no. 76-2


FeatureSize / Details
Size12 ft
Reach Height16 ft
Max. Standing Height9 ft 7 in
Load Capacity375 lbs
CertificationsANSI A14.5 (2007); OSHA
Approx. Spread79 in
Edge BracingHeavy
Spreader MaterialSteel
Approx. Shipping Weight Lbs.50
Approx. Cu. Ft. Per Unit14.8
Description of Top FeaturesParts tray, 2 drill holes, 2 tool slots, 3 tool holes
Performance Rating

Package Contents

Part NumberQtyDescription


Top Dimension7-1/4 in x 14-7/8 in
Front Rails Dimension3-1/8 in
Front Flange Dimension1-3/16 in
Rear Rails Dimension1-7/8 in
Rear Flange Dimension1-3/16 in
Steps Dimension3 in

Additional 7300 Series Models

Model No.SizeReach HeightMax. Standing HeightApprox. SpreadApprox. Shipping Weight Lbs.Approx. Cu. Ft. Per UnitBuy Online
73033 ft7 ft1 ft23-1/2 in132.5
7303S3 ft7 ft1 ft23-1/2 in16.52.5
73044 ft8 ft1 ft 11 in29-3/4 in163.5
7304S4 ft8 ft1 ft 11 in29-3/4 in19.53.5
73055 ft9 ft2 ft 10 in35-7/8 in19.54.6
7305S5 ft9 ft2 ft 10 in35-7/8 in234.6
73066 ft10 ft3 ft 10 in42 in22.55.8
7306S6 ft10 ft3 ft 10 in42 in265.8
73088 ft12 ft5 ft 9 in54-3/4 in318.5
7308S8 ft12 ft5 ft 9 in54-3/4 in348.5
731010 ft14 ft7 ft 8 in66-5/8 in40.511.4
7310S10 ft14 ft7 ft 8 in66-5/8 in43.511.4
731212 ft16 ft9 ft 7 in79 in5014.8
7312S12 ft16 ft9 ft 7 in79 in5314.8

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.