Chapter 10

The BUILD Blog is a discussion of modern design in the Pacific NW written by BUILD LLC, an industrious architecture company based in Seattle, Washington. Despite all of these liberties, however, the ship ladders to roof terraces still need to be perfectly safe, and the code simply puts the discretion in the hands of the architectural team. When considering a portable ladder for a work activity, the employer must select one of the appropriate grade/type for the intended use. The height of stair rail systems shall not be less than 30 inches from the upper surface of the tread.

Stairs need to be designed and installed to meet the most stringent requirements from the Occupational Safety & Health Administrations (OSHA) General Industry standard (29CFR1910), New York State Unified Code (Building and Fire Safety), and the National Fire Protection Association (NFPA 101). Cleats are ladder crosspieces of rectangular cross section placed on edge on which a person may step in ascending or descending.

The top of the uppermost rung of a ladder should be level with the top of the access/egress level or landing platform served by the ladder. There are the more common variety pictured above, and the less common alternating step stair variety pictured below. Companion way / Ships ladders complete with treads (rather than rungs) should be used between 65-75 degrees.

We will work with you to design and manufacture a ladder or ladder systems that will meet your exact requirements and will continue to perform well for many years. This is a white ship ladder with stainless steel railing and a special wheel & bracket system that allows the stair to slide against the wall & out of the way. A fastening is a device to attach a ladder to a structure, building, or equipment. Most ships ladder’s are used to access control rooms, roofs or even unoccupied areas.

Fixed access ladder installations must be periodically inspected by a competent person for rust, corrosion and structural integrity, and must be maintained in a good condition, not likely to endanger any worker. It’s been a great debate and I sincerely appreciate your input (and the ships ladder thing is truly useful), but let’s talk about something else. The Mezzanine Access Platform Ship Ladder features a platform connected to the top of the ladder.

Custom fabrication requirements are available options — please contact UPNOVR for further information. One added step is to remind your client how you are helping with maintenance” by your thorough attention to design. The purpose of this guideline is to clarify the training requirements for operators of elevating work platforms. The ladder must also be able to support additional weight due to ice buildup, rigging and impact.

These combined stair and platform units enable personnel to traverse safely up and over any pipe work, or similar obstruction to access all roof areas for maintenance and cleaning. Handrail and stair rail systems shall be surfaced to prevent injury to employees from punctures or lacerations, and to prevent snagging of clothing. The use of accessories such as tool lanyards to keep tools tethered to the worker can prevent them from falling while working on a ladder. ANSI ASC A14.7-2011 covers mobile ladder stands and mobile ladder stand platforms.

Use fiberglass or wood ladders, rather than metal, near power lines or other sources of electricity to avoid electrical shock hazards. There is a key phrase within the Washington State Amendments to the International Building Code (2012 IBC 1009.18) that allows an accessible rooftop of less than 200 square feet in area to be accessed by a ship ladder rather than a fully code-compliant stairway. For instance, depending on these factors and the particular circumstances, a Grade 1/Type I ladder (or higher) will typically be needed for the types of work activities undertaken on construction sites.

We specialize in custom access designs and have the capabilities to design and manufacture a safe ladder for your application, on budget and on deadline. A manufactured portable ladder must be marked for the grade of material used to construct the ladder and the use for which the ladder is constructed. With any cabin stair or ladder, you may also want to think about treating the tread nose with some sort of glow-in-the-dark paint or tape. Ladders and components are fabricated from aircraft grade 6061-T6 aluminum alloy and hand-selected choice hardwoods, fiberglass and meet or exceed OSHA and ANSI standards.

OSHA 1926.1053(a)(1)(iii) provides minimum loads for ladders, as does ASCE 7-10 chapter 4. When engineering ladders, I would expect to use the stricter of the two (ASCE 7 and OSHA) for each ladder construction, but that isn’t what this company does (I’m new here). Mobile ladder stand platforms are movable, fixed height, self-supporting units having at least one standing level with means of access or egress to the platform(s). The environment the finished ladder will encounter (electrical hazards, temperature extremes, corrosion, outdoor weathering, etc.) should determine the material.

This regulation applies to common types of portable wood ladders and not to specialty ladders such as shelf ladders, combination step and extension ladders, fruit picker’s ladders, stockroom and aisle-way stepladders and library ladders. Every ship’s ladder must be equipped with a cage or well to provide fall protection when the ladder length extends beyond 24 feet. Use a second person to hold the bottom of the ladder and prevent others from disturbing it. Keep a three-point grip on the ladder at all times (two hands and one foot or one hand and two feet). Modifications to the attachment of the ladder to the structure, building or equipment should be approved by a Professional Engineer.

Proper care and maintenance of portable metal ladders extends ladder life and improves user safety. However, new facilities where frequent entry is going to be made should be sized and installed with a proper fixed ladder. Consideration should also be given to the location of the handle and closing mechanism of the hatch as it will need to be within easy reach from the ship ladder. Construction requirements include weight and size categories for portable ladders. What I’m looking at is OSHA requiring two 250-lbf loads, and ASCE requiring 100 psf or 300-lbf load.

This is a close-up of the top bracket that allows the stair to slide up & out of the way when not in use. With manufacturers, hatch sizes, and opening mechanisms rather limited, this piece should be selected during the design development phase of a project and planned around early. Do not lean back and never stand on the top two rungs of a stepladder or top four rungs of an extension ladder. A number of fixed ladders (typically vertical mounted) were installed prior to OSHA requirements being imposed on this facility.

A: According to the U.S. Bureau of Labor Statistics, 50% of all ladder related accidents were due to individuals carrying items as they climbed. Safe Harbor’s engineers have the experience and application knowledge to design an accommodation ladder to meet your requirements, whether you need a vertical climb ladder to move between decks or a side ladder to provide external access to a ship. Top hung fold away ship type access ladder 2000 high with a retractable lower section. Since the treads alternate, this stair is not considered to be as safe as a standard ship ladder or spiral stair.

The design or selection of an appropriate warning system (intermittent horn or flashing light) to satisfy the requirement of section 13.25(1)(b) will depend on the circumstances of use of the platform. However, ladders generally are evaluated on their resistance to bending, strength in various positions and the quality of the individual components that make up the ladder. I recently helped a neighbor empty her attic and the ladder I climbed up was a lot like this one. Ladder Industries has set a high standard for rolling ladders They’re made to last.