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Britannia
Architectural Metalwork Ltd
Metal staircases spiral
staircases uk cast iron spiral staircase.
Ornate Cast Iron Straight & Spiral Staircases
Britannia’s standard range of ornate cast iron straight staircases are
replica Victorian Designs modified to accommodate the standard widths
required by today’s builders. The staircases can be supplied either ready to
assemble complete with all screws and bolts etc. or just the castings for
assembly by the client’s own metalworkers. In addition to this standard
range, Britannia can make specially designed staircases to order.
The Range
The standard tread design is based on the rose pattern which was in common
use during the Victorian period. The tread is designed to be side fixed to
the stringers and is available in five widths as follows:
600mm, 800mm, 900mm, 1000mm and 1100mm wide.
The spirals are made in 1200mm, 1500mm & 1800mm diameters.
Tread Dimensions
The dimensions of the treads referred to in the diagram below are given in
the table on the right.
Table of Tread Dimensions:
600mm x 240mm
800mm x 240mm
900mm x 240mm
1000mm x 240mm
1100mm x 280mm
landing plate
1050mm x 240mm
Balusters
The standard baluster used with both our spiral and straight staircases is
our pattern A01 (or tulip baluster). These balusters are available in the
sizes illustrated which are designed so that they can be modified to
accommodate any balustrade height between 900mm and 1100mm so as to comply
with the Building Regulations. The majority of other Britannia balusters can
be specially adapted for use with the staircases.
Finishes
The standard finish for all staircases is one coat of oxide primer ready for
site decoration.
Rise and Going
The rise and going of the staircase can be adjusted so as to accommodate
most applications by changing the pitch of the stringers and the position of
the treads and their overlap within the stringers (see sketch).
Stringers
The treads are supported on two mild steel stringers which transfer the
weight of the staircase to the buildings structure. The fixing gusset
plates at the top and bottom of these stringers can be modified to suit site
conditions.
Landings
Cast decking for landings of the same width as the stairs can be made up of
the same design of casting but without the upstand. Britannia also
manufacture a matching decking plate 1050mm long which is designed to rest
on a steel framework.
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Britannia Architectural Metalwork Ltd
The Old Coach House
Draymans Way
Alton,
Hampshire
GU34 1AY
Tel: 01420 84427
Fax: 01420 89056
To email this company
click here
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