Crosstrack
 

An Economic Analysis of Crosstrack

Economics of the Crosstrack Cable Management System

Cost Analysis Brief

Crosstrack versus in ceiling cabling and conventional pedestal floors

  • Unit rates have generally been taken from Rawlinsons Australian Construction Handbook 1996
  • The study only analysed direct quantifiable costs
  • The following cost analysis compares the product with the major alternatives i.e. in ceiling cable distribution and the traditional pedestal floor
  • Figures for churn downtime have been averaged from a number of sources including a consultant report on Hong Kong Bank (HK) and studies by Ackermann Systems, Europe and Robertsons Ceco in the USA
  • The cost per workstation per hour has been allowed at $100.00
  • Floor area per workstation is assumed to be 15 square metres
  • Average "churn" for large organisations is typically estimated at 40-60% per annum. In this analysis the figure of 40% has been assumed
  • Total floor area is 800 square metres
  • material replacement cost is costed at $55.00 per square metre. Flooring replacement is at 2% per annum. In ceiling replacement is at 5% per annum
  • The analysis is based on an occupancy period of 10 years, on the assumption that major refurbishment will be undertaken at the end of this period
  • Future costs have been discounted to net present value (npv) at a rate of 15% pa. This is approximately twice the prime bond yield to allow for uncertainty.

Cost Comparison

Cost Over 10 Years Crosstrack
$/Sq Mtr
200 MM Pedestal
Floor $/Sq Mtr
In Ceiling Wiring
$/Sq Mtr
Basic floor system
supply and install
$86.00 $95.00  
Increase floor to
floor height $105/M
rise/m sq UFA
$8.40 $21.00  
Cable trays @ 1 linear
mtr per 6 sq mtr
  $3.50 $5.00
Power poles @ 1 per
20 sq mtr
    $15.75
Outlet boxes @ 1 per
10 sq mtr
$12.00 $15.00  
Ramps @1 per 50 sq mtr $4.00 $10.00  
Cable installation $40.70 $40.70 $50.00
Initial Installation Costs $151.10 $185.20 $70.75

Operation Costs

Ongoing Operation
Costs
Crosstrack
$/Sq Mtr
200 MM Pedestal
Floor $/Sq Mtr
In Ceiling Wiring
$/Sq Mtr
Material replacement
per annum (refer brief)
$1.10 $1.10 $2.75
Relocation downtime-
personnel and equipment
1 hour 1.5 hours 8 hours
Annual churn cost $2.67 $4.00 $21.33
Total operation
cost per annum
$3.77 $5.10 $24.08
Total cost 10 years
operation (NPV @ 15%)
$21.74 $29.44 $139.00
Total cost -
installation plus
operation costs
$172.84 $214.64 $209.75

The Crosstrack Advantage - Please Consider

In short why use Crosstrack Integrated Access Flooring?

The initial cost of installing cabling through the ceiling or under pedestal floors may be less than installing a dedicated Crosstrack cable management system. However, the following issues need to be examined closely:

  • Initial costs of cabling in ceiling
  • Building height may need to be increased to permit an increase in ceiling space for cable clearance above/below air conditioning ducts, beams, column heads, etc.
  • Cable trays will be needed. These should have cantilever supports to allow cables to be laid in from the side.
  • Vertical ducts will be needed at regular intervals viz power poles, ducts in columns, partitions dados, skirtings.
  • Cable installation time is longer and interferes with other trades (including ceiling hangers, a/c installers, lighting electricians, thermal alarm installers, partition fixers).
  • Cable installation is more difficult and time consuming due to extra length of cables and awkwardness of hauling cables into ceiling and threading into vertical ducts.
  • Cable costs can be significantly higher due to extra cable length and occasional higher specification requirements.

Ongoing costs

  • Relocation and re-wiring causes major disruptions to the office and additional ongoing maintenance cost.
  • Additional cable usage.
  • Lengthy equipment downtime to complete the work.
  • Greater disruption to workplace, and eventual soiling and damage of ceiling tiles and support grid.

Non-Quantifiable Costs

  • Aesthetics are degraded by down-poles and surface-mounted duct poor cable organisation increases the risk of data corruption due to electromagnetic interference.
  • In the process of re-wiring ceiling dust and debris will be dislodged, fouling desks and computer equipment.
  • Business activities will be disrupted.
  • Ceiling services will be disturbed (e.g. air conditioning registers and flow adjustment, also thermal alarm systems and lighting).

Crosstrack Advantages

Why use Crosstrack cable management system?

  • Greater flexibility in office lay-out
  • Better data and power cable distribution
  • More economical electrical installation
  • Easier access to cabling network
  • "Open plan" office environment
  • Minimise risk of computer network breakdowns
  • Less interruptions during electrical rework
  • Better acoustic flooring properties

Why use Crosstrack v.s. Generic raised pedestal flooring?

Requirement Crosstrack Generic Pedestal Floor
Low height
1. Increase in profitable space
2. Minimal ramping
3. Easier to retro-fit
Nominal 78mm Nominal 150 mm.
If lower there will be very little space left for cross over bridges, trays and ducts.
Acoustic properties Each 600 x 600 mm module is supported on 16 off individual point and is glued to the floor with a rubber based adhesive making the floor more quiet and solid. Each 600 x 600 mm deck plate is supported at the 4 corners only. Pedestals are placed directly on concrete. All this makes the floor potentially noisy and unsteady. Regular maintenance is needed.
Ducting Integrated cable ways allow for proper cable segregation and cross-overs at right angles. Cable ways are clearly marked on deck panel for easy recognition. Additional ducts and support trays are major hidden extra costs.
Access
Consider:
1. disturbance to office personnel
2. cost of re-wiring
3. time to locate breakdown
Only one deck panel will need to be lifted to gain access and to allow for cabling to be fed longitudinally or transversely. Cables are always segregated properly. A number of deck panels need to be removed to ensure correct cabling. Unable to feed cables without disturbing large areas of flooring due to existing cabling bridges and tie-downs to existing ducts. Easy to compromise existing power/data cable separation.
On-going maintenance NIL Pedestals need adjustment to ensure floors remain stable to eliminate noise.
Installation More economical. Tongue and groove interlock. Individual pedestal adjustments.
If this is not done properly:
1. Flooring will rock
2. Flooring will be noisy


Crosstrack Overview
Economic Analysis
Installation Information
Contract Specification
Site Reference List
Crosstrack Projects
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80 Maribyrnong St, Footscray, Victoria 3011, Australia
ABN: 17 084 174 621 | ACN: 084 174 621
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