01 / Scope
Which project information should define the flooring takeoff scope?
Use the supplied drawings and project information as the basis for quantities, schedules and preparation allowances. FathomTrowel takeoff outputs appear only where that information supports them. Missing, conflicting or ambiguous details are flagged for clarification or recorded as assumptions, never silently estimated. Exclusions identify work outside the stated scope or unsupported by the supplied information.
Site verification, design responsibility, specification review and procurement advice are excluded unless separately agreed. Contractors supply their rates and retain responsibility for margin, preliminaries, their commercial offer and the final bid. FathomTrowel does not set rates, submit the bid or guarantee a tender outcome.
02 / Material allowances
How should I use the reported flooring waste figures?
Treat the supplied UK commercial flooring tender report’s material-waste allowances as illustrations, not project rates or bid defaults. The report lists examples by material and laying pattern:
| Material or pattern | Example allowance | Report note |
|---|---|---|
| Illustrative wet-area package | 7–12% | [1] |
| Ceramic tile — straight lay | 10% | [2] |
| Ceramic tile — brick bond | 12% | [2] |
| Ceramic tile — diagonal | 15% | [2] |
| Ceramic tile — herringbone | 15–20% | [2] |
| Carpet tile | 5–10% | [2] |
| Sheet and general vinyl | 10–20% | [2] |
Product, pattern, cuts, layout and usable offcuts change the allowance. None of these figures is a universal rate or an automatic default; assess the selected product and project layout before carrying an allowance into a tender.
03 / Labour inputs
How should I set labour hours for a flooring tender?
Set labour hours by activity from a stated, reviewable basis and keep them separate from contractor rates. If tender documents do not settle the time input, label it as an assumption for contractor review [3]. These report examples are illustrative only—not standard productivity figures, rate guidance or bid defaults:
- Resilient and carpet installation
- Two-person crew · 248 hours × £32.50/hour = £8,060 [4]
- Porcelain setting and grouting
- Two-person crew · 104 hours × £34/hour = £3,536 [4]
- Preparation and clean-down
- One-person crew · 72 hours × £27/hour = £1,944 [4]
04 / Subfloor and installation
What should I confirm about the subfloor and installation system?
Confirm the exposed subfloor condition and selected product system against actual readings and project requirements before setting preparation scope. The supplied flooring tender report treats a clean, dust-free surface as a preparation assumption [5]. In refurbishment, assess the subfloor after old floorcoverings have been removed [7]. It calls for calibrated hygrometer testing and moisture management at or above 75% RH, or 65% for timber/wood flooring [6][7]. It also says cracks up to 50 mm may be filled in most cases [6][7]. Treat these figures as report findings to check against actual readings and project requirements, not universal tender rules.
Smoothing underlayment, laitance removal and old-adhesive removal depend on the selected system and actual condition. The report says laitance should be removed before underlayment, and old adhesive mechanically removed unless the underlayment is suitable over the residue [6]. Proper preparation is a prerequisite for flooring product performance guarantees [6].
Adhesive-free installation is specification-driven. The report identifies LVT, carpet tiles and woven vinyl as possible applications [5][8]. Traditional adhesives are not reversible fixings and may contaminate the covering or subfloor on uplift [9]. Confirm the specification, actual readings and manufacturer requirements; these are report findings to check, not universal tender rules.
05 / Site conditions and exclusions
Which site conditions can change flooring scope or cost?
Access, working hours, handover, protection and waste handling can change scope or cost, so confirm them from the project information. The supplied flooring tender report’s illustrative labour and cost basis uses standard access, normal working hours and clear handover areas. It excludes floor protection, furniture moves, disposal and out-of-hours work [4]. Those examples are not universal exclusions or automatic charges.
Restricted access, extended hours, waste handling, occupied-space protection, existing-floor removal and post-removal assessment, moisture management, residue removal, remedial preparation, or unsuitable-subfloor repair and underlayment can change scope or cost [4][6][7]. The report did not quantify weather delays or cure times [4]. Its reviewed tender documents also did not establish a universal client/contractor supply boundary; confirm who supplies each item from the project documents.
06 / Tender review
A short check before the bid is prepared
- Confirm current drawing revisions and the information used for each quantity.
- Review stated exclusions and coordinate the flooring scope with other trades [10].
- Keep open clarifications, assumptions and project-specific scope changes visible.
The supplied flooring tender report flags outdated plans, rushed measurement, coordination errors and missed specification notes as takeoff risks [10]. It also describes how quantity errors can lead to waste, shortages, delays or extra storage and return costs [11]; these are general report findings, not claims about a particular project.
Research basis
What the numbered notes mean
Research claims above are attributed to the supplied report, “Common Assumptions and Exclusions in UK Commercial Flooring Tenders: Source-Linked Findings” (work item 6489213, report 5213936). The supplied snapshot is truncated, and its available notes contain no bibliography destination URLs. Markers [1]–[11] preserve only the supported numbered references in that snapshot; no source names or links are inferred. The illustrative figures are report findings, not independently verified standards.
Primary-source context for measurement and estimate records
The RICS and Infrastructure and Projects Authority sources below support general measurement and estimate-documentation context only. They do not substantiate the supplied flooring report’s numbered findings or examples, which remain illustrative pending individual verification. The government guidance is not a flooring-specific tender rule.
- RICS identifies NRM 2 as its detailed measurement volume for building works. RICS: NRM 2: Detailed measurement for building works
- The guidance says estimate reports should identify their evidence sources and maturity, assumptions, and exclusions. Infrastructure and Projects Authority: Cost Estimating Guidance