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D1200-3 Series Aluminum Multi Section Extension Ladders

>Series Callout
The D1200-3 series aluminum extension ladders are Compact, 3 section ladders that have a duty rating of 225 lbs and interlocking side rails. The TRACTION-TRED® D rungs are slip resistant. Spring-loaded locks operate smoothly for easy operation. Shoes rest flat or are held in spur position with SHU-LOK® feature. Mar-resistant end caps help protect the surface ladder is leaning against. Exclusive ALFLO® rung joint means TWIST-PROOF® performance every time.


  • Durable shoe rests flat on slip resistent pad or is held in spur position with Shu-Lok® feature

Performance Overview

SizeStyleApprox. Closed LengthReach HeightLoad CapacityPerformance Rating
16 ft -- 24 ftMulti Section6 ft -- 9 ft15 ft -- 23 ft225 lbs


Rails DimensionFlange DimensionRung DimensionFly Width
3 in1 in1-1/2 in -- 1-3/4 in15-1/4 in


Model No.SizeMax. Safe Working HeightMax. Open Extended LengthFoot MaterialCertificationsApprox. Closed LengthBuy Online
D1216-316 ft13 ft13 ftSlip-resistant padANSI A14.2 (2007); OSHA; Special Purpose6 ft
D1224-324 ft21 ft21 ftSlip-Resistant padANSI A14.2 (2007); OSHA9 ft


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.