Download free high quality cad drawings blocks and details of metal ladders organized by masterformat.
Roof access ladder details.
Side members are 1 4 x2 x2 steel angle.
Ceiling mount foldaway ladders access roofs commercial attics and mezzanines from inside with these ceiling mount ladders.
Constructed with lightweight corrosion resistant low maintenance aluminum and heavy duty stainless steel hardware these interior or exterior roof access ladders are designed for maximum climbing comfort and user safety.
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Ladders are designed for applications where safe landing access is required.
Wall attachment hardware is also available on request.
At o keeffe s we offer a complete line of customizable interior or exterior roof access ladder models that allow for safe and easy access to rooftops mezzanines and many other elevated areas.
They are one piece welded assemblies for use in applications less than 20 in vertical height.
Fixed ladders with walk thru handrails.
Precision ladders llc cad details for ladders.
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These ladders have been thoroughly tested for strength and are able to withstand a 1500 loading without failure.
Shear strength each and have been tested to 3 000 without deformation.
When not in use they fold up for a flush fit with the ceiling surface.
3 4 corrugated steel round climbing rungs on 12 centers.
D 2 of this section with minimum clearances for intermediate pitches varying between these two limits in proportion to the slope except as provided in subparagraphs 3 and 5 of this paragraph.
On fixed ladders the perpendicular distance from the centerline of the rungs to the nearest permanent object on the climbing side of the ladder shall be 36 inches for a pitch of 76 degrees and 30 inches for a pitch of 90 degrees fig.
Precision s ladder treads are a full 2 1 4 in width and they are deeply serrated to maximize traction.