Turn wall dimensions into accurate AAC estimates. See blocks, adhesive, pallets, and costs instantly today. Reduce waste, plan deliveries, and build with confidence always.
| Wall (L×H) | Openings | Block (L×H×T) | Waste | Estimated blocks | Adhesive bags (25 kg) |
|---|---|---|---|---|---|
| 6 m × 3 m | 2.4 m² | 600×200×150 mm | 5% | ~138 | ~3 |
| 10 m × 3 m | 3.0 m² | 600×200×200 mm | 7% | ~242 | ~5 |
| 4 m × 2.7 m | 1.8 m² | 600×250×100 mm | 5% | ~56 | ~2 |
This calculator converts wall dimensions into block, adhesive, and logistics quantities for estimating and procurement. It supports preliminary takeoff, budgeting, and delivery planning before detailed shop drawings and bond layouts are finalized. Use it for single walls, then repeat for each wall run and sum results for a full level. For fast checks, keep units consistent, and record assumptions in the exported report for team review later weekly site meetings.
Gross wall area is calculated from length and height, then reduced by the total openings area for doors, windows, and major service penetrations. Accurate openings input prevents over-ordering and helps match site stacking space and crane handling plans. If a wall has multiple opening types, measure each and add their areas to a single total.
Block face area uses the selected length and height, while thickness is used for wall volume and weight checks. The block count is rounded up to whole units because partial blocks still require purchase and handling. A waste allowance adds a controlled margin for cutting, breakage, and offcuts. Increase waste where there are returns, frequent chases, lintels, or nonstandard module adjustments.
Thin-bed adhesive demand is estimated from net area multiplied by an adjustable usage rate, then rounded to full bag counts for procurement. The rate varies with surface flatness, trowel size, and crew consistency, so treat it as a project parameter. Optional blocks-per-pallet converts total blocks into pallet quantities so you can schedule truckloads, unloading equipment, and weather-protected storage with minimal double handling.
Optional unit prices estimate block and adhesive costs for quick comparisons between wall thicknesses or suppliers. Density-based weight estimation supports structural coordination, scaffold planning, and manual handling limits, especially on upper floors. Review the results against elevation drawings, corner details, and manufacturer tolerances, and adjust for site-specific wastage, curing conditions, and inspection requirements before issuing purchase orders.
Calculate each wall run separately using its net dimensions, then add block, adhesive, and pallet totals. For repeating floors, multiply by the number of similar levels and adjust openings where layouts differ.
Do not subtract small boxes. Treat only doors, windows, and large continuous voids as openings. For heavy chasing, increase the waste allowance and verify adhesive consumption with your site team.
For simple rectangular walls, 3–5% is often workable. For corners, curved layouts, many openings, or frequent services, use 7–10%. Track actual breakage and cutting to refine the allowance.
Adhesive is calculated from net wall area times your selected usage rate, then increased by the waste factor. The result is rounded up to full bags using the bag weight you enter.
Blocks and bags are supplied as whole units, and partial quantities still require purchase, delivery, and storage. Rounding up also protects the schedule from minor measurement errors and on-site losses.
Yes, but update the adhesive rate to match your mortar consumption per square meter, and consider adding extra waste. For thick joints, block count may also change with joint thickness and bond pattern details.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.