Offline-first construction estimating
Estimate materials and costs from the job site—even offline.
Calculate walls, roofs, blocks, concrete, labour and delivery using your own prices, units and currency. Save the project and export a clear estimate in minutes.
- Works without a data connection
- Your local prices and currency
- PDF and CSV export
12.4 m checked wall
3 openings deducted
LOCAL PRICES
APPLIED OFFLINE
READY
APPLIED OFFLINE
READY
Try the idea
Move a measurement. See the estimate respond.
This small demonstration shows the BlockToBlock principle: checked site inputs become visible quantities and costs. The mobile app provides the complete calculators.
8.0 m
2.7 m
3.33 m² openings
Net wall area18.3 m²
Indicative blocks190
Block cost2,280.00
Illustrative demo only. Openings, waste, mortar, labour and site conditions require review in the app.
Start with today’s job
What are you trying to estimate?
Open a focused workflow instead of searching through a feature list.
01Wall or boundaryArea, openings, blocks and local cost
02Concrete workSlab volume, waste and cost basis
03RoofingPitch, sheets, timber, fixings and cost
04Block productionBatch yield, cement, sand and allowance
05Mortar mixWall area, consumption and materials
06Block purchaseQuantity, breakage, trips and delivered cost
07Client quotationLabour, delivery, markup and clear hand-off
08Connected project workspaceScope, BoQ, prices, purchasing, actuals and documents
Show the commercial outcome
A total is not enough. Show what the client is paying for.
Professional estimates should separate quantities, material cost, labour, delivery, waste and markup while preserving the assumptions behind the revision.
- Project and client identity
- Visible cost sections
- Revision and validity information
- Assumptions and exclusions
ProjectBoundary Wall — East Plot
MaterialsNLe 2,394.00
Labour & deliveryNLe 1,000.00
Example totalNLe 3,801.28
One connected workflow
From measurement to a usable estimate
BlockToBlock keeps the calculation transparent, so you can check every input before sharing the result.
- 1Choose the job
Start with a wall, building, roof, block purchase, concrete or mortar calculation.
- 2Enter checked measurements
Use Metric or Imperial presentation while calculations retain a consistent engineering base.
- 3Review quantities and costs
Apply your saved materials, labour, transport, tax, discount and local delivery assumptions.
- 4Save and share
Keep the project on-device, revise it later, or export through your phone’s native share sheet.
Built for work in the field
The essentials without the enterprise overhead
Offline by default
Keep calculating, saving and reviewing when site connectivity is slow or unavailable.
Prices that match your market
Maintain a private materials and costs list with your currency, units, vendors and delivery notes.
Work you can hand over
Save projects, duplicate estimates and export PDF or CSV without pretending an order or payment was sent.
Trust through boundaries
Useful calculations, honest limitations and visible decisions.
BlockToBlock should earn confidence by explaining how units, rounding, prices, local data and human review work—not by presenting every output as certainty.
Inside the app
Tools for the calculations builders repeat
For independent builders and growing crews
Start simple. Standardise when the team grows.
Use shared starter files, price books and setup guidance today. BlockToBlock remains honest about which collaboration features are local and which require future accounts and cloud services.
Designed around real site conditions
Local prices. Mobile crews. Unreliable signal. Clear hand-offs.
BlockToBlock is shaped for builders working with block construction, corrugated roofing, truck delivery and changing material prices—including the realities of Sierra Leone and wider West African markets.
Ready for the next estimate?
Take BlockToBlock to the job site.
Available for iPhone and Android. Store pricing can vary by region and tax.