Formwork quote-scope workflow
Concrete Formwork Cost Calculator
Answer first: concrete formwork cost is driven by formed linear feet, extra edges, stakes, bracing, layout labor, stripping, and cleanup. Price those lines before comparing a bundled slab, patio, driveway, footing, or foundation bid.
20x20 example
88 formed ft
A simple 80 ft perimeter with a 10% irregular allowance becomes 88 planning ft before stakes and labor.
Default worksheet
$1,014.38
Sample forms, stakes, bracing, 8 labor hours, stripping, cleanup, and material waste at local-editable rates.
Quote check
$11.53 / formed ft
Use cost per formed linear foot to compare a visible worksheet with a bundled contractor allowance.
Forms, stakes, bracing, and labor worksheet
Price the formwork line before it disappears inside the slab bid
Enter the formed perimeter, extra edges, material, stakes, bracing, layout labor, and stripping cleanup. The worksheet turns those assumptions into a cost per formed linear foot and a quote-review checklist.
Current decision
Labor controls the line
Compare layout, checking square, grade setup, curves, access, stripping, and cleanup hours across bids.
Measure the formed edges
Price materials, labor, and bid comparison
Formed linear feet
88 ft
80 ft base plus 8 ft irregular allowance
Stakes
22
Screened from 4 ft spacing before corner and soft-ground review
Subtotal
$1,014.38
$11.53 per formed ft
Bid comparison
-$34.38
-3.39% versus the bundled formwork allowance
Material
$308.88
Form boards/flexible forms with 8% allowance
Stakes
$60.50
22 stakes in the worksheet
Labor
$440
Layout, grade checks, bracing, and forming time
Area context
$2.54/sq ft
400 sq ft used only as a comparison context
| Cost line | Cost | Basis | Quote check |
|---|---|---|---|
| Form boards or flexible forms | $308.88 | 88 formed ft with 8% material allowance | Confirm whether reusable boards, flexible forms, release agent, and replacement material are included. |
| Stakes | $60.50 | 22 planning stakes | Ask how corners, curves, bulkheads, thickened edges, and soft ground change stake spacing. |
| Bracing and hardware | $85 | Entered allowance | Ask whether screws, duplex nails, kickers, braces, clamps, and blowout prevention are included. |
| Layout and forming labor | $440 | Entered labor hours x rate | Separate layout, checking square, grade setup, bracing, and rework time from concrete placement labor. |
| Stripping forms and cleanup | $120 | Entered allowance | Confirm who removes forms, pulls stakes, handles nails, and cleans up lumber or debris. |
| Scope scenario | Formed ft | Estimated cost | Decision signal |
|---|---|---|---|
| Rectangle only | 80 ft | $922.40 | Use only when all four outside edges are the whole formwork scope. |
| With extra edges | 80 ft | $922.40 | Use when bulkheads, step edges, apron edges, or staged-pour edges are added. |
| 10% irregular screen | 88 ft | $1,014.38 | Use when curves, flares, jogs, thickened edges, or checking time add forming pressure. |
Contractor questions to copy into the quote request
What this does not price
This worksheet does not design shoring, wall form pressure, reinforcement, code compliance, or a structural foundation. Use it to normalize flatwork and light forming scope before asking a contractor for the written responsibility.
Interactive workflow
Run the numbers, then save or export the project
Save this estimate or download a PDF report
The PDF report uses the current calculated result. Save the estimate first when you want to reuse the inputs later.
What generic slab cost pages usually hide
Many cost pages quote a square-foot or cubic-yard number. Formwork is different: it follows the edge line, not just the slab area. This worksheet keeps that scope visible before a bid comparison.
Slab area only
- Replace with local input
- Show formed linear feet from perimeter, bulkheads, steps, flares, staged-pour edges, and irregular allowances.
- Next check
- Ask whether the bid priced the same edge length and shape that you measured.
Forms included
- Replace with local input
- Separate boards or flexible forms, stakes, bracing, layout labor, stripping, cleanup, and waste.
- Next check
- Request written inclusion/exclusion language instead of accepting one vague installed price.
Cheap cost per square foot
- Replace with local input
- Compare the bundled formwork allowance against cost per formed linear foot and area context.
- Next check
- Use the quote reviewer when two bids have similar concrete volume but different edge complexity.
Concrete volume calculator
- Replace with local input
- Keep formwork separate from cubic yards, reinforcement design, wall pressure, shoring, and code compliance.
- Next check
- Open slab, footing, pier, or foundation tools for geometry and approved quantities.
Formwork cost lines to verify
Use this checklist when a contractor quote says forms are included but does not show the assumptions behind that line.
Formed linear feet
The quote counts outside perimeter plus bulkheads, step faces, apron flares, thickened edges, isolation edges, and staged-pour stop ends.
Ask every bidder to price the same measured edge length before comparing totals.
Form material and height
Boards, flexible forms, release agent, replacement pieces, tall edges, and edge depth are named or excluded.
Separate ordinary 2x forms from taller, curved, reusable, or thickened-edge forming.
Stakes and bracing
Stake spacing, corners, soft ground, kickers, clamps, braces, and responsibility for movement or blowouts are clear.
Get bracing language in writing before placement starts.
Layout and grade labor
Checking square, line, grade, slope, tie-in elevation, curves, and rework time are not hidden inside placement labor.
Compare labor hours across bids when material costs look similar.
Stripping and cleanup
Form removal, stake pulling, nail cleanup, scrap lumber, debris removal, and yard protection are included or excluded.
Add a cleanup allowance before deciding one bid is cheaper.
Engineering boundary
The worksheet is not being used for structural shoring, wall form pressure, foundation design, reinforcement, bearing, or code compliance.
Use approved plans and qualified local review for structural formwork and foundations.
| Signal to check | What it means | Next step |
|---|---|---|
| Formed linear feet | The quote counts outside perimeter plus bulkheads, step faces, apron flares, thickened edges, isolation edges, and staged-pour stop ends. | Ask every bidder to price the same measured edge length before comparing totals. |
| Form material and height | Boards, flexible forms, release agent, replacement pieces, tall edges, and edge depth are named or excluded. | Separate ordinary 2x forms from taller, curved, reusable, or thickened-edge forming. |
| Stakes and bracing | Stake spacing, corners, soft ground, kickers, clamps, braces, and responsibility for movement or blowouts are clear. | Get bracing language in writing before placement starts. |
| Layout and grade labor | Checking square, line, grade, slope, tie-in elevation, curves, and rework time are not hidden inside placement labor. | Compare labor hours across bids when material costs look similar. |
| Stripping and cleanup | Form removal, stake pulling, nail cleanup, scrap lumber, debris removal, and yard protection are included or excluded. | Add a cleanup allowance before deciding one bid is cheaper. |
| Engineering boundary | The worksheet is not being used for structural shoring, wall form pressure, foundation design, reinforcement, bearing, or code compliance. | Use approved plans and qualified local review for structural formwork and foundations. |
Related concrete planning tools
Move from a single calculation into a purchase, proposal, or pour-day decision with connected calculators and checklists.
How do I calculate concrete formwork cost?
Start with formed linear feet: outside perimeter plus extra edges, bulkheads, steps, flares, or staged-pour stop ends. Then add form material, stakes, bracing, labor, stripping, cleanup, and waste before dividing by formed linear feet.
What is included in formwork cost?
A useful formwork line should name layout, form boards or flexible forms, stakes, bracing, hardware, checking line and grade, stripping forms, pulling stakes, and cleanup. If those items are bundled, ask for the assumptions.
Is formwork cost based on square feet or linear feet?
For flatwork edges, linear feet is the clearer comparison because forms follow the perimeter and extra edge lines. Square-foot context can help compare bids, but it can hide curves, flares, bulkheads, and thickened edges.
Does this calculator estimate wall form pressure or shoring?
No. This page is a planning and quote-normalization worksheet for formwork cost. It is not formwork engineering, shoring design, wall pressure calculation, reinforcement design, or code compliance advice.
Why can two slab bids have different formwork costs?
Two bids can differ because one includes curves, thickened edges, tall forms, soft-ground bracing, form stripping, cleanup, or tie-in detail while the other hides or excludes those items.
Should cleanup be included in formwork pricing?
It should be clearly stated. Form stripping, stake removal, nails, scrap lumber, debris, and yard protection can affect the real installed total even when the concrete volume is unchanged.
Planning disclaimer
This page is a planning worksheet for concrete formwork cost and quote review. It is not structural design, formwork engineering, shoring design, wall-pressure calculation, code compliance advice, or a guarantee of local labor pricing. Confirm drawings, site conditions, safety requirements, and local contractor scope with qualified professionals.