TryBuildCalc

Wall Putty Verification Checklist

Essential Checklist+

Complete these critical checks before approving the work or proceeding to the next construction stage.

✓16 Inspection Points
✓5 Verification Categories
✓Room & Surface Measurement+
  • Room length, width, and wall height (or a known wall area) were measured on site, not taken from a floor plan alone, since as-built dimensions commonly differ from drawings by several centimetres.
  • Every door and window opening was measured and entered as its own row — width, height, and quantity — rather than estimated or skipped.
  • Wall height was measured from finished floor to finished ceiling, not to the underside of a cornice, unless that area is genuinely excluded from puttying.
  • The decision on whether to include the ceiling was made and matches whether it's a plastered ceiling (needs full putty) or a suspended/false ceiling board (usually only needs joint filling, not full-area putty).
✓Surface Preparation and Coverage+
  • The wall surface is clean, dust-free, and free of loose plaster or old flaking paint before putty application — putty applied over loose material will crack and delaminate.
  • Surface Condition was set to match the actual wall — Smooth, Standard, Rough, or New Bare — since this changes the suggested coverage rate significantly.
  • Coverage rate used matches the specific product's data sheet, not a generic average, especially for a first-time brand or product line.
  • New plaster was allowed to cure and dry (typically a minimum of 1-2 weeks, longer in humid climates) before the first putty coat — applying putty over damp plaster causes cracking and adhesion failure.
✓Coats and Application Technique+
  • Two coats were budgeted as the default — the first fills gaps and levels unevenness, the second creates the smooth, sandable finish coat.
  • Each coat was allowed to dry fully (typically 24 hours, product- and climate-dependent) before the next coat or sanding step.
  • The final coat was sanded smooth (typically 120-180 grit) and dust was fully removed before primer, since primer applied over sanding dust won't bond properly.
✓Wastage, Bags, and Ordering+
  • Wastage allowance reflects the room's actual conditions (higher for rough/new-bare surfaces and multi-section jobs) rather than defaulting to the minimum every time.
  • The final quantity including wastage — not the pre-wastage raw total — is what was used to place the putty order.
  • Bag size was confirmed against the actual product label (commonly 1, 5, 20, or 40 kg — not the commonly assumed 25 kg), and Multiple Rooms' Same Putty Product setting matches whether every room really does share one putty order.
✓Final Checks Before Priming+
  • The puttied surface was checked for smoothness by hand and under raking (angled) light, which reveals ridges and unevenness that direct overhead light hides.
  • The surface was confirmed fully dry (not just surface-dry) before primer was scheduled, since trapped moisture under primer and paint causes blistering later.
Full QC Checklist+

Verify room and surface measurement, surface preparation, coats and application, wastage, and final pre-primer checks.

✓23 Inspection Points
✓5 Verification Categories
✓Room & Surface Measurement+
  • Room length, width, and wall height (or a known wall area) were measured on site, not taken from a floor plan alone, since as-built dimensions commonly differ from drawings by several centimetres.
  • Every door and window opening was measured and entered as its own row — width, height, and quantity — rather than estimated or skipped.
  • Wall height was measured from finished floor to finished ceiling, not to the underside of a cornice, unless that area is genuinely excluded from puttying.
  • The decision on whether to include the ceiling was made and matches whether it's a plastered ceiling (needs full putty) or a suspended/false ceiling board (usually only needs joint filling, not full-area putty).
  • For an irregular or multi-section room, Multiple Rooms mode was used to calculate each rectangular section separately rather than forcing one non-rectangular room into a single calculation.
✓Surface Preparation and Coverage+
  • The wall surface is clean, dust-free, and free of loose plaster or old flaking paint before putty application — putty applied over loose material will crack and delaminate.
  • Surface Condition was set to match the actual wall — Smooth, Standard, Rough, or New Bare — since this changes the suggested coverage rate significantly.
  • Coverage rate used matches the specific product's data sheet, not a generic average, especially for a first-time brand or product line.
  • Deep cracks or holes (larger than hairline) were pre-filled with a dedicated crack filler or patching compound before the general putty coats, since putty alone is too thin to bridge a large gap in one pass.
  • New plaster was allowed to cure and dry (typically a minimum of 1-2 weeks, longer in humid climates) before the first putty coat — applying putty over damp plaster causes cracking and adhesion failure.
✓Coats and Application Technique+
  • Two coats were budgeted as the default — the first fills gaps and levels unevenness, the second creates the smooth, sandable finish coat.
  • Each coat was allowed to dry fully (typically 24 hours, product- and climate-dependent) before the next coat or sanding step.
  • Applied thickness per coat stayed within the product's recommended range (commonly around 1-2 mm) — over-thick application is the most common cause of later cracking and delamination.
  • The final coat was sanded smooth (typically 120-180 grit) and dust was fully removed before primer, since primer applied over sanding dust won't bond properly.
  • Powder putty was mixed to the manufacturer's specified water ratio and used within its stated pot life, rather than mixed ahead of time and left to partially set.
✓Wastage, Bags, and Ordering+
  • Wastage allowance reflects the room's actual conditions (higher for rough/new-bare surfaces and multi-section jobs) rather than defaulting to the minimum every time.
  • The final quantity including wastage — not the pre-wastage raw total — is what was used to place the putty order.
  • Bag size was confirmed against the actual product label (commonly 1, 5, 20, or 40 kg — not the commonly assumed 25 kg), and Multiple Rooms' Same Putty Product setting matches whether every room really does share one putty order.
  • All putty for the same job was ordered from the same production batch where visible color/texture consistency matters (relevant for exposed/feature surfaces more than fully painted-over ones).
✓Final Checks Before Priming+
  • The puttied surface was checked for smoothness by hand and under raking (angled) light, which reveals ridges and unevenness that direct overhead light hides.
  • The surface was confirmed fully dry (not just surface-dry) before primer was scheduled, since trapped moisture under primer and paint causes blistering later.
  • Doors, windows, and any fittings that reduce the puttied area were physically re-checked against the opening list entered into the calculator immediately before the order was placed.
  • Primer and paint quantities were planned as the next step, using this same net wall area, rather than recalculated from scratch.
Inspection Notes+
Use the latest approved drawings, specifications, and site measurements.
Complete all critical checks before proceeding to the next work stage.
Record deviations and confirm rectification where required.

Related Calculators & Guides

Wall Putty CalculatorOpen the related calculator and verify the current project inputs.Primer, Putty and Paint SequenceCheck the correct wall finishing sequence — plaster, putty, primer, then paint — before application.Interior Painting GuideReview surface preparation, primer, putty, coats, finish selection, and inspection checks.Room Paint CalculatorCalculate the paint that comes right after this putty coat, for the same room.

FAQ

Use it after collecting the project inputs and again before approving or closing the relevant work stage.
No. It supports verification but does not replace approved drawings, specifications, codes, manufacturer requirements, or professional inspection.