Plan the whole cut job — penos & openings, blocks, cores & lifting
Get paid
💲
Quote & Invoice
Price the job from your own rates, then bill it — the plan rides behind the paper
⚙️
My Rates
Your price book — set it up once, every quote uses it
💲
Quote the job — from the plan
Price a planned job from your own rates and print the paper that wins the work. In final testing with real cutters — tap to see how it works.
On the tools
Overcuts
Calculate corner overcuts & stitch drilling
📄
PDF Report
Generate & share a job report
⛽
Fuel Mix
2-stroke oil ratio calculator
🧱
Block Weight
Concrete block weight from dimensions
⭕
Core Weight
Core cylinder weight & penetration
Wall Saw Setup
Anchor & foot distances by saw model
Drill Angle
Angled core drilling through floors & walls
📷
Cut Photo
Photo a surface & draw cut lines on it
📐
Level & Angle
Phone sensor — bubble level & angle
🌏
Setup
Country, units and concrete density
📲
Install
Add Cutulator to your home screen
⛽
2-Stroke Fuel Mix
Enter fuel, pick ratio, get oil amount
① How much petrol?
L
② Select mix ratio
25:1
36:1
40:1
50:1
:1
💾 Saved Ratios
Save current ratio as:
③ Add this much oil
—
millilitres
—
Mix breakdown
—
Petrol
+
—
Oil
=
—
Total
💡 Tip: Add oil first, then petrol on top. Shake well before use.
Recent mixes
🛢️
Enter fuel amount & select a ratio above
🧱
Concrete Block Weight
Rectangle or irregular shape × depth × 2.4
▭ Rectangle
⬡ Irregular Shape
📏 How to use: Enter the length and width in metres, and the depth in millimetres.
① Enter block dimensions
Length (metres)
m
in
Width (metres)
m
in
Depth (millimetres)
mm
① Grid size per cell
② Draw block shape
🟠 Tap corners · 🟢 Green ring = close shape
💡 Draw the approximate shape — you can enter the exact dimensions in Adjust Side Lengths as long as you have the correct number of sides.
③ Depth
mm
③ Adjust side lengths
Type to fine-tune
Each side of your shape is listed below. Enter an exact length to move that corner and recalculate.
⬡
Draw shape above then close it
Draw Block Shape
Tap corners · Green ring = close shape
💡 Draw approximate shape — adjust exact dimensions in side lengths below
0 points
Concrete Block Weight
—
kilograms
—
Calculation breakdown
Volume—
Concrete density2.4 t/m³
Weight—
Block shape — top view
Individual block — 3D view
💡 Note: Uses 2.4 t/m³ — standard for reinforced concrete. This is an ESTIMATE. Actual weight varies with mix, moisture, reinforcement and voids. Always work to the SWL / WLL of your lifting gear and verify before lifting.
🧱
Enter block dimensions above
Cut Size
Plan cuts for rectangles & irregular shapes
① Grid size per cell
Each square = one cell. Corners snap to grid intersections. Use larger cells for big slabs.
② Draw your slab shape
🟠 Tap to place corners · 🟢 Green ring = tap to close shape
💡 Draw the approximate shape — you can enter the exact dimensions in Adjust Side Lengths as long as you have the correct number of sides.
Draw Slab Shape
Tap corners · Green ring = close shape
💡 Draw approximate shape — adjust exact dimensions in side lengths below
0 points
③ Adjust side lengths
Type to fine-tune
Each side of your shape is listed below. Enter an exact length to move that corner and recalculate.
④ Slab depth
mm
Full penetration removal
Treat the slab as a penetration — cuts the full outer perimeter too
▸ For more detail on a penetration job → Job Builder
⑤ Block size
By Weight
By Dimensions
500 kg
5 kg1 t
kg
t
Fit to Slab
Lock Block Weight
Blocks are stretched slightly so they divide evenly into the shape. No offcut.
Resulting block dimensions
Length
—
m
Width
—
m
Fit to Slab
Lock Block Size
Blocks are stretched slightly so they divide evenly into the shape. No offcut.
m
in
m
in
Resulting block weight
—
Slab Area
—
m²
Total Weight
—
Block Count
—
pieces
Block Weight
—
Block dimensions
—
Cut depth
—
Total cut
—
Which way to cut it
Cut layout preview
Blocks shown clipped to shape boundary. Perimeter blocks will be partial pieces.
Penetration — 3D view
Individual block — 3D view
Full-size internal block — edge pieces will be smaller
💡 Note: Uses 2.4 t/m³. Block weights are for full internal blocks — edge pieces will be lighter. Add them separately for total piece count.
or switch back to rectangle
① Slab dimensions
m
in
m
in
mm
kg
Full penetration removal
Treat the slab as a penetration — cuts all 4 outer edges too
▸ For more detail on a penetration job → Job Builder
② Block Size
By Weight
By Dimensions
500 kg
5 kg1 t
kg
t
Blocks are stretched slightly so they divide evenly into the slab. No offcut.
Resulting block dimensions
Length
—
m
Width
—
m
Depth
—
mm
—
m
in
m
in
Blocks are stretched slightly so they divide evenly into the slab. No offcut.
Resulting block weight
—
—
Which way to cut it
🔓
Penetration removal
All 4 edges cut free — total slab weight must be lifted out
Penetration weight
—
Blocks
—
pieces
Columns
—
along length
Rows
—
along width
Slab plan — cut layout
Cut lines
Penetration — 3D view
Individual block — 3D view
All blocks are identical — dimensions shown on faces
Block breakdown
💡 Note: Uses 2.4 t/m³ concrete density. Blade kerf not included — add 3–4 mm per cut for precise work.
💡 Lifting: These blocks get lifted. Drilled core holes are not officially rated lifting points — they hold on ample surrounding concrete; rated anchors for heavy or overhead lifts. Work to the SWL / WLL of your gear with a competent person, and verify before lifting.
Price this as:
Floor saw
Hand saw
Wall saw
Push saw
Enter slab dimensions or draw an irregular shape
Drill Angle
Core drilling through floors & walls
① Drilling surface
🏗️ Floor
🧱 Wall
② Dimensions
mm
mm
in
③ Rig geometry — required for accurate anchor distance
These dimensions are used to accurately calculate the anchor distance at any drill angle. Defaults are set for the Hilti DD350-CA on DD-HD 30 stand. When using step-out spacers, update the hole centre → stand pivot distance to include the step-out size. The anchor distance is a fixed stand dimension and does not change.
Hole centre → anchor at 90° (no step-outs)
mm
Hole centre → stand pivot (at 90°)
mm
Pivot bolt height from drilling surface
mm
④ Drill angle
60°
15°30°45°60°75°90°
°
mm
Total Drilled
—
mm — min bit / barrel / core length
Barrel Length +10% Safety
—
mm — without partial core removal
Entry→Exit Offset
—
Anchor Dist
—
Entry Opening
—
Core Length
—
mm — centre entry to centre exit
Cross-section — Floor
—
Barrel diagram — Floor
Plan view — rig setup
Anchor distance from entry centre—
Entry hole opening — long axis
Ellipse on entry surface, measured along drill direction
—
Entry hole opening — short axis (= barrel ø)—
Entry → exit centre offset
How far apart entry & exit centres are on the surface
—
Core length
Centre entry to centre exit — straight-line path through material
—
Core weight
Concrete cylinder removed @ 2400 kg/m³
—
💡 Tip: Mark both entry and exit centre points before drilling. The entry ellipse long axis shows the actual surface opening to mark out. Bit/barrel length = the total distance drilled — order a barrel at least this long.
Enter hole diameter and concrete thickness above
Stitch Drilling
Plan hole patterns for concrete penetrations
① Circle diameter
mm
or switch back to rectangle
① Grid size per cell
② Draw penetration shape
🟠 Tap to place corners · 🟢 Green ring = tap to close shape
💡 Draw the approximate shape — you can enter the exact dimensions in Adjust Side Lengths as long as you have the correct number of sides.
Draw Penetration Shape
Tap corners · Green ring = close shape
💡 Draw approximate shape — adjust exact dimensions in side lengths below
0 points
③ Adjust side lengths
Type to fine-tune
Each side of your shape. Enter an exact length to move that corner.
or switch back to rectangle
① Penetration dimensions
m
in
m
in
② Penetration depth
mm
kg
② Core settings
mm
mm
③ Internal grid (optional)
Perimeter Only
+ Internal Grid
By Dimensions
By Weight
Fit to Penetration
Lock Block Size
Fewest cut lines. Blocks can come out heavier than you asked — check the resulting block weight.
mm
mm
Resulting block weight
—
500 kg
10 kg1 t
Resulting block dimensions
Length
—
Width
—
Total Cores
—
cores
Perimeter
—
cores
Internal
—
cores
Which way to cut it
Core pattern — top view
Standard
Clean Edge
Core centre sits inside the perimeter — leaves a small scallop on the inside face.
30 mm
Centre-to-centre spacing: — mm
Perimeter core
Internal core
Stitch pattern — 3D view
Drilling data
Total drill depth
—
metres
Material removed
—
kg by coring
Centre spacing
—
Penetration weight
—
Each core weight
—
kg per core
Remaining weight
—
kg after coring
Net block weight
—
—
—
Blocks
—
💡 Tip: Start corner cores first, then work along each side.
💡 Lifting: Blocks that fall out get lifted. Drilled core holes are not officially rated lifting points — they hold on ample surrounding concrete; rated anchors for heavy or overhead lifts. Work to the SWL / WLL of your gear with a competent person, and verify before lifting.
Oversized blade? Sink it past “just touching” and stop the machine short of the corner — the arc still reaches the critical corner with less overcut at the surface.
Stop short of corner
—
machine pullback at surface
Max sink
—
flange hits surface
0mm
Cross section
⚠️ Show overcut
🔩 Stitch to avoid overcut
Corner stitch drilling
Core overlap (eliminates web between holes)
5mm
Core drill diameter
mm
Job Builder
Plan the whole cut job — penetrations & openings: cuts, relief cores, lifting
① Penetration & edges
Slab / Floor
Wall
m
in
m
in
mm
💡 Draw the approximate shape — tap the grid to place corners, tap the first point (green ring) to close. Then type the exact side lengths below and Apply; the block grid re-fits automatically.
Adjust side lengths
Type the exact dims
Edges — tap a side on the picture
finished lineopen / freeagainst wall / floor
Standalone
Finish the obstructed edge with
Tap a side to cycle: finished line → free / open (no perimeter cut or relief — standalone slabs, blocks and walls) → against wall / floor (the machine's guards keep the cut off the wall; the leftover strip is jackhammered out or left). Standalone frees all four.
② Machine
Pick the saw — it sets how deep it reaches, the overcut, and the relief cores. Machines that can't do this peno are greyed.
Can the saw overrun past the finished line into the concrete you are keeping? No (default) — the overruns must be relieved. Yes — only where an engineer has approved it as safe; no relief cores.
Relief cores
Cores drilled so no cut overruns the finished line — at the 4 corners and where each internal cut meets the perimeter.
Core diameter
mm
Standard
Clean edge
Same as Stitch: holes overhang outside the line and the scallops between them land ON it — a clean finished face, and each core covers a full pitch along the line.
Overcut relief
Relief cores
Inner perimeter
Every corner and internal cut end gets relief cores where it meets the finished line.
Reduce the drilling with a ringsaw
Drill
Ring saw
Deep ring
④ Blocks
By dimensions
By target weight
Whole piece
mm
in
mm
in
kg
The block rectangle is derived from the peno's own shape at this weight — exact, because blocks are saw-cut rectangles.
No internal cuts — cut the perimeter and take the whole piece out in one. Corner relief still applies (the saw overcuts at the corners); check the piece weight below.
Fit to Peno
Lock Block Size
Fewest cut lines. Blocks can come out heavier than you asked — check the resulting block weight.
Which way to cut it
⑤ Lifting cores
None — blocks are hand-carried. Add cores if a crane or forklift will lift them.
Cored through each block for crane chains — in one hole, out the other.
Core diameter
mm
Per block
Edit mode: tap an empty spot in a block to add a core at the selected Ø, tap a core to remove it, drag a core to move it.
💡 Lifting: Weights are estimates (2.4 t/m³). Core holes aren't rated lifting points — rated anchors for heavy or overhead lifts. Work to your gear's SWL / WLL.
⑥ Slither cut
No slither
Slither cut
A thin hand-removable strip that gives the row below room to tilt out without jamming. Drag the hatched strip on the diagram to move it.
mm
Full width
One block
The strip runs the full width of the peno.
Enter the peno size, thickness, blocks and blade to plan the job.
The job
Blocks
—
Block weight
—
Total cores
—
Saw cutting
—
surface metres
Core drilling
—
drilled metres
Overcut at depth
—
each cut end
Plan view
Corner core overlap (eliminates web between holes)
20mm
Why the relief cores — cross-section at a cut end
The blade is round: stop the cut at the line on the surface and the bottom of the cut stops short. The relief cores finish what the blade can't reach — without them the cut overruns the line on the surface.
Plunge deeper (default: plunged as deep as it goes — back it off if something's behind)
0mm
Corner detail
Wire — to wrap each cut
This is ONLY the wire around the block. Add your machine's minimum wire to start (every saw holds a different amount) plus the extra to reach it if it isn't sitting at the cut — a saw set up away uses redirect pulleys to act like the machine drawn here.
Inner perimeter — where the overruns die
Internal cuts complete to the inner line; their overruns land inside the band, never reaching the finished line. The band is jackhammered out.
Marking-out plan
Include
Off
Running dimensions from a START corner, plus a marker on the plan — on screen and the PDF. Turn off to leave it out.
Marking out
📐
Level & Angle
Use your phone as a level or angle gauge
iOS requires permission to access motion sensors
⬜ Bubble Level
📐 Angle
Lay phone flat on surface
Left / Right
—
degrees
Front / Back
—
degrees
💡 Tip: Place your phone on the surface with the screen facing up. Green bubble = level.
Sit phone upright on its bottom edge
0° = perfectly plumb. Tilt left or right to read angle.
—
degrees
💡 Tip: Sit the phone on its bottom edge. 0° = plumb vertical. Only left/right tilt changes the reading — forward/back lean has no effect.
📐 ANGLE
—
degrees
📵
Sensors not available on this device or browser
Try opening in Safari on iOS or Chrome on Android
💲
Quote & Invoice
Price the job from your own rates, then bill it — same lines, same totals, two documents
① When is the job?
Crew:hrs ×men
＋ Add crew
Minimum charges follow the timing — if the lines come in under, the minimum is the price. The crew row prices your blokes: hours on site × how many men, one tap — at the LABOUR rate in business hours, the OVERTIME rate off-hours (automatic).
② Add a line
mm
mm
holes
mm
m
m
m
mm
m
Cross-cuts break the slab into liftable pieces. Leave spacing blank for the rule of thumb (spacing = width ≈ 3× the length in cutting) · your own spacing beats it · 0 = rails & ends only. Piece and total removal weights print on the line — set your density in ⚙ Setup.
m²
cuts
Minimum per cut applies to each cut — face is split evenly across them for the check.
hrs
×
days
hrs
Gear with an operator charges call-out + hours; dry-hire gear charges days — the box knows which it's holding.
$
＋ Add to quote
③ Who it's for
These print at the top of the quote. The number counts up on its own — set it once to match your books.
days
Attach the cutting plan
Quote only
📄 Quote
🧾 Tax invoice
The plan behind the quote is the picture that wins the job — it prints unless you turn it off.
④ Getting paid
Pay on completion
PREPAID job
Prepaid stamps the quote: payment required before work commences. Your bank details print automatically — set once in ⚙ My Rates.
⑤ The quote
＋ Add to this quote
🆕 Start fresh
✕ Cancel
%
$
Add a bit for the unforeseen — prints as its own labelled line, so the quote still reads calculated. Negative = discount.
📋 Copy
📄 PDF
✕ Clear
⚙️
My Rates
Your price book — set it up once, every quote prices from it
① The book
Quoting & invoicing — on the sample business
It all works — plan the job, price it, produce the paper. It just quotes as Sample Concrete Cutting on the sample price list, so you can see exactly what you'd be sending before you pay for anything.
Subscribe to put your rates and your details behind it.
Your job reports already carry your own logo and company name — that came with the app and it stays yours.
Subscribe
Not now
or unlock with a code
Every web purchase comes with a code. Founding testers — yours is on the house, straight from Jarrod.
✎ Start from this sample
↺ Reset to sample
⇩ Export book
⇧ Import book
＋ Client book
A client book starts as a copy of the current book — change what's special for them. The Quote tab asks which rates once there's more than one.
Starting copies the sample into YOUR book — then every number below is yours to change. Rates live on this device, never on our servers. Export = one file carrying your whole price list (rates, terms, bank details — never the You card); the office sends it to every phone.
🏢 Company
Who every document comes from — name, tagline and logo on the report, the quote and (soon) the invoice.
🖼
🖼 Upload / replace logo
💳 Getting paid
Entered once, kept on this device, printed on every quote so the customer can pay you. Travels with the book file when export lands — the office sets it once for every phone.
Take card payments straight to YOUR account: open a free Stripe account at stripe.com, make a Payment Link (no code, a few clicks), paste it here. AU: a sole-trader ABN is enough · US: individual or LLC · UK/EU: sole trader or limited company. Do it by the rules and this is a real little business.
🧑 You
Printed as "Quoted by" on every quote from THIS device — the client rings whoever quoted it. Personal to this phone/computer: it never travels with the company book.
Photo a surface, mark cuts & cores, share with client
Load Photo
Photo the surface. Tap to place dots — lines connect automatically. Tap any existing dot to branch from it. Add circles for cores.
Tap to place dots — lines connect automatically
Wall Saw Setup
Anchor & foot distances by saw model
Brand
Model
Always verify on your machine. Factory figures come from manufacturer manuals; "on site" figures are common field practice. Check against your own saw and manual before drilling.
🌏
Setup
Where you work, how you measure, what your concrete weighs
🧱 Concrete density
Every weight in Cutulator comes from this one number — block weights, core weights,
stitch blocks, the lifting notes and the job report. Change it and they all follow.
The default is what most cutters use, and it errs heavy on purpose because these are
lifting weights. Set it lighter for waste and removal figures if that is
what you are costing. Always work to your gear's SWL / WLL.
🌏 Where you work
Sets your currency, your tax and the way your paper reads. Your units stay
yours — metric and imperial are one tap either way, whichever country you pick.
Not on the list yet? Pick the closest — every rate in the book is yours to type over,
and the sizes go all the way up whether you use them or not.
📏 How you measure
Independent of where you work — Canada is metric on paper and imperial on
site, and a Briton is metric without being Australian. One tap either way,
and it is remembered.
Metric
Imperial
⚙️
Setup & Install
Your concrete, and getting the app on your phone
App URL
Copy this URL and paste it into Safari (iPhone) or Chrome (Android), then follow the steps below to install.
https://cutulator.app
📲 How to install on your phone
🍎 iPhone
🤖 Android
⚠️ Must use Safari on iPhone.
1
Open in Safari
2
Tap the Share button ⬆
3
Tap "Add to Home Screen"
4
Tap "Add" — done! 🎉
1
Open in Chrome
2
Tap ⋮ → "Add to Home screen"
3
Tap "Add" — done! 🎉
Preview
Job Report.pdf
📄 Job Report
Company details
RC
Job reference (printed at the top of the report)
Notes (optional — printed on the report)
Turn off to export without a timestamp.
Tap logo box to upload your company logo
Include sections
Orange = has data · Grey = no data entered · These shape the JOB REPORT — the Quote PDF has its own layout (lines, totals, terms, the plan behind).
The quote prints its lines from the 💲 Quote tab — add lines there first.
Pinch or scroll to zoom · drag to pan · double-tap zooms where you tap · tap outside to close
Draw Penetration Shape
Tap corners · Green ring = close shape · Count the squares to draw to scale
0 points
Edit planPinch to zoom · one finger to pan · press & hold a core or cut line to pick it up
Ø
💲 Quote the job — from the plan
Plan the job in Job Builder and the quote prices itself — every metre, every core, every line from your own rate book. Tap any line and rewrite it. The paper that goes out carries the cutting plan behind it.
Your rates live in your pocket, not on our servers.
In final testing with real cutters now — arriving in a free update.
