This is аn action for personal injuries sustained by the plaintiffs when a ladder manufactured by the defendant broke. The ladder had supported one end of an aluminum plank on which both plaintiffs were standing while painting the side of a house. A jury returned verdicts for both plaintiffs and, by their answers to special questions, found thаt the defendant was not negligent in the manufacture of the ladder but was negligent “with respect to warnings or instructions as to the use of the ladder.” They also found that neither plaintiff was contributorily negligent, and that the plaintiff Fegan had not assumed the risk of injury. They found that the plaintiff Allen, however, had assumed that risk. The case is before us on the exceptions of the defendant to the judge’s refusal to direct verdicts in its favor against each plaintiff and his refusal to enter such verdicts under leave reserved.
There was evidence that the ladder had been purchased by Allen’s father, who was a painter by trade and а licensed rigger, in April, 1968. It was a twenty-four foot extension ladder and had been in more or less continuous use from that time until December 12,1968, as one of threе such ladders used by the three men (Fegan, Allen, and Allen’s father) on a housing project. It was generally stored in garages at night, although occasionally it was left outdoors on sawhorses. The ladder was intended for commercial use, being of a heavier construction than some ladders sold for home use, and had a normal life expectancy of three years if subjected continuously to the normal wear and tear expected in commerсial use.
On December 12, 1968, the three men erected a scaffold consisting of an eighteen foot aluminum plank supported on the right by a trestle laddеr set on a porch and on the left by a ladder jack attached to the extension ladder. The extension ladder was raised to a height of eightеen feet. It was set in the ground eight or nine feet from the foundation. The upper hooks of the jack gripped the rails of the ladder just above the second rung from the top. The bottom of the jack rested on, and hooked around the rails just above, the fourth rung. Allen had set up the extension lad *62 der, checked it for safety, and affixed the jack. Fegan had set up the trestle ladder, and both had inserted the plank. Allen climbed the extension ladder and started to paint standing on the left portion of the plank. Fegan climbed up the trestle ladder and worked from the right portion of the plank. About five minutes aftеr they started painting, the rails of the extension ladder broke at the second rung. The upper portion of the ladder fell to the ground, and the lower portion fell in against the house. The top hooks of the jack released, and the left end of the plank fell to the ground. Both Allen and Fegan fell to thе ground and were injured.
There was evidence to the effect that ladder jacks were in customary use by commercial painters at the time and that the president of the defendant had reason to know and did in fact know that extension ladders such as the one involved in this case would be used with jacks. There was testimony by an expert witness called by the defendant from which the jury might have found that ladders of the dimensions, materials, and construction of the brokеn ladder are not sufficiently strong to be safe for use with ladder jacks. There was further evidence that an organization called the American Laddеr Institute, of which the defendant was a member and the defendant’s president was secretary, had participated in writing and sponsoring a ladder safety code, and that one of the sections of that code stated that ladders of the materials and dimensions of the ladder which broke “should not be used by more than one man at a time nor with ladder jacks and scaffold planks where use by more than one man is anticipated.” It was not disputed that the only warnings given by the defendant to users of its ladders appeared on a label stuck to the ladder which read in relevant part, “When erecting extension ladder, place at 75%° angle so that bottom is away from vertical resting point one-quarter of extended length of ladder____A ladder is meant to carry only one person at a time. Do not overload.”
We are of the opinion that the judge was not in error in
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permitting the jury to find from this evidence that the defendant was negligent in failing to give explicit warnings about a foreseeable and anticipated use of its ladder which it knew or should have known to be fraught with a danger not apparent to its anticipatеd users. A manufacturer is under a duty “adequately [to] warn of foreseeable and latent dangers attendant upon proper and intended use of his product.”
Land O’Lakes Creameries, Inc.
v.
Hungerholt,
These cases are applications of the general principle set forth in
Carter
v.
Yardley & Co. Ltd.
The warning given by the defendant, that the ladder was not to be used by more than one person at a time, hаd no obvious application to the foreseeable use of the ladder with jacks or other scaffolding. If it can be interpreted as having such application, the jury could find that its warning was not sufficiently explicit. It was far less explicit than the warnings held adequate in
Taylor
v.
Jacobson,
The defendant argues that the jury’s affirmative answer to the question concerning Allen’s assumрtion of the risk is inconsistent with their general verdict for Allen and that as a result the jury’s verdicts must be set aside and a new trial ordered. See
Thurlow
v.
Welch,
Exceptions overruled.
