LT2 Seating
  • SIS Global Seating's upholstered LT2 lecture theatre seat can be tailored to suit individual design requirements, both in terms of dimensions and finishes.
  • The underside of the seat can be either upholstered, exposed polished or a veneered plywood panel. The same detail can also be reflected on the outside of the back rest.
  • A number of alternative finishes of writing shelves are also available, including laminated, veneered, linoleum and solid timber.
  • A wide range of seat cover fabrics are available, including tweeds, vinyl, velour and leather. All fabrics and seat foams meet the appropriate fire regulations.
  • The writing shelf width varies depending on the tier depth and rise per row of the lecture theatre. Please contact our design office for details.
  • The seat centres of the Model LT2 chair can be varied to suit site dimensions. Chairs can be spaced at a minimum of 450mm centres up to 610mm centres.
  • The heights and lengths of the back rest can vary depending on the height of the lecture theatre’s tiered risers. Ideally, the top of the upholstered back rests will abut to the underside of the writing shelf creating a modesty panel effect for the seats in the row behind.
  • A typical seat centre in a lecture theatre would be 500 mm
  • All SIS retractable units have their respective CE Marking Certification (please see Accreditations).
  • SIS has CHAS Certification (Contractors Health and Safety Assessment Scheme) – SSISP (please see Accreditations).
  • SIS has Constructionline Certification – Gold Member – Construction Supply Chain Compliance – SSISP (please see Accreditations).
  • SIS Global Seating has been officially certified and operates an accredited ISO 9001 : 2015 Quality Management System (please see Accreditations).
  • SIS Global Seating has been officially certified and operates an accredited ISO 14001 : 2015 Environmental Management System (please see Accreditations).
  • These certifications mean that everything that SIS Global Seating design, manufacture and installs meets with these high exacting standards.
LT2 Seating Features

Framework

  • Steel frame constructed of 50 x 25 x 2.0mm ERW complete with 100 x 100 x 5mm floor plate and 50 x 10mm writing shelf support plate. 1 no pair of swivel brackets provided per seat place, complete with nylon bushes for friction free tipping action designed to give a minimum of 100,000 cycles of operation.
  • All metal work to have all weld spatter removed prior to being thoroughly de-greased and de-scaled before being powder coated. Colours available from the British Standard or RAL colour range.

Upholstery and Shelves

  • Seat base measures 400 mm deep. Interior 18mm thick plywood base with all corners rounded and all sharp edges removed.
  • Seat foam to be 75mm thick overall, consisting of 50mm thick, 6lb recon foam core topped with 25mm thick, 25/30kg/m3 CMHR foam. Top foam to be complete with skirt which is to be long enough to be wrapped over all edges of seat plywood base to give protection to the seat base covering fabric. Underside of the seat to be finished with 3mm thick plywood base covered with selected fabric.
  • Back rests vary in depth owing to the height of the riser. Back rest has interior 15mm thick plywood base with all corners rounded and all sharp edges removed. Back foam to be 40mm thick, 25kg/m3 CMHR foam. Back foam to be complete with skirt which is to be long enough to be wrapped over all edge of the back plywood base to give protection to the back unit covering fabric. Back unit complete with Tee nuts for assembly to the supporting metalwork. Back unit covered in selected fabric.
  • Where the tiers of a lecture theatre are high the back rest can be extended so as to form a modesty panel for the seat row behind.
  • Upholstery complies with BS 5852 Source Ignition 0,1 & 5 (Crib 5) flame retardancy standard.
  • Chair and seat tilt mechanism has been tested to BS EN 12727:2000 Level 4 for strength & durability.
  • Writing shelves to have various widths dependant on tier depth and riser height but has a standard width of 290mm wide and laminated on one face with Formica Fundamentals laminate. All edges to be ABS type to match the writing shelf laminate.
  • Portable writing shelf units to be provided for use by wheelchair bound students.

Company

  • SIS has CHAS Certification (Contractors Health and Safety Assessment Scheme) – SSISP (please see Accreditations).
  • SIS has Constructionline Certification – Gold Member – Construction Supply Chain Compliance – SSISP (please see Accreditations).
  • All SIS retractable units have their respective CE Marking certification (please see Accreditations).
  • SIS Global Seating has been officially certified and operates an accredited ISO 9001 : 2015 Quality Management System (please see Accreditations).
  • SIS Global Seating has been officially certified and operates an accredited ISO 14001 : 2015 Environmental Management System (please see Accreditations).
  • These certifications mean that everything that SIS Global Seating design, manufacture and installs meets with these high exacting standards.

 

Fixed Tier Structures

Please visit the Fixed Tier Structures page for more details relating to the fixed tier structures that support our Upholstered Seating.