50 Specialist Calculators
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Additional Utilities

Additional Utilities
Calculators

Accurate quantities for specialist building materials that often get overlooked in project planning. From adhesives and construction glue to cable containment and gypsum board systems - calculate what you need before you order and keep your project on programme.

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Why Accurate Utilities Calculations Matter

Specialist building materials like construction adhesives, cable containment systems, and gypsum board are often quoted separately from main building materials and can represent a significant proportion of project cost - particularly on commercial and fit-out projects where cable tray runs can stretch for hundreds of metres.

Our additional utilities calculators handle the specific logic of each material type. Adhesive calculations work from bead size and spacing rather than simple area coverage; cable containment calculations count fittings as well as straight lengths; and gypsum board calculations account for specialist shaft wall and corridor board systems as well as standard sizes.

Whether you are a main contractor building out a commercial shell, an electrician running cable containment on an industrial project, or a dryliner specifying shaft wall construction, these tools help you arrive at accurate quantities quickly.

Key Factors in Utilities Calculations

  • Adhesive bead diameterConstruction adhesive yield depends heavily on the bead diameter. A 6mm bead covers roughly four times the length of a 12mm bead from the same cartridge. Always specify the application bead size when calculating.
  • Fittings cost more than trayBends, tees, reducers, and end caps can account for 30-40% of a cable tray budget on a complex installation. Always count fittings separately from straight tray lengths - they are often overlooked at the estimating stage.
  • Conduit fill ratiosIET Wiring Regulations limit cable fill in conduit to prevent overheating. Checking the fill ratio before specifying conduit size avoids having to upsize on site - an expensive and disruptive change.
  • Gypsum board fire ratingsDifferent gypsum board products have different fire ratings. Standard Gyproc Wallboard has no fire resistance. Fireline and Soundbloc boards achieve the ratings required by Building Regulations in specific locations.
  • Joint compound coverageJointing compound for gypsum board is typically applied in three coats. Coverage rates vary significantly between ready-mixed and powder products. Always check the manufacturer's data sheet for the specific product you are using.

Additional Utilities Calculators

Select a calculator below to get instant quantities for specialist building materials.

Adhesive & Glue Calculator

Calculate the number of adhesive cartridges, tubs, or tubes needed for construction bonding applications. Specify the bead diameter, bead spacing, total bonding length or area, and the cartridge yield for your product. Returns total adhesive volume in ml, number of cartridges or tubs to purchase, and an optional cost estimate. Covers grab adhesives, sealants, and structural adhesives.

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Cable Tray & Conduit Calculator

Estimate cable tray, cable trunking, or conduit lengths, bends, tees, reducers, brackets, and fixings for electrical containment installations. Enter the total run length and number of each fitting type. Returns number of standard tray or conduit lengths, fittings list, and support bracket quantities based on maximum span. Covers perforated, ladder, and solid bottom tray types.

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Gypsum Board Calculator

Calculate gypsum board sheet quantities, drywall screws, jointing tape, and jointing compound for drylining, shaft wall, and corridor systems. Select your board type and size, enter the total area, and specify the number of layers. Returns sheets required, screws per sheet, jointing tape length, and compound quantities in kg or bags. Supports Wallboard, Fireline, Soundbloc, and moisture-resistant boards.

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