FREE CONTRACTOR RESOURCE CENTER

Free Contractor Calculators & Business Templates

Instant field tools for concrete yardage, roofing squares, stud framing, drywall, and job margin markup—plus free downloadable estimate, change order, and invoice templates.

calculate Job-Site Figuring Tools

Interactive Construction Calculators

foundation Concrete Slab & Yardage Estimator

Calculation Results

Cubic Yards Needed 7.41
80lb Bags (Premix) 334
60lb Bags (Premix) 445
Rebar Grid (18" Spacing) 800 ft

Note: Calculation includes a 10% safety overage margin for uneven subgrade or excavation variance.

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Free Contractor Form Templates

Download, copy, or print these editable professional form templates for your contracting business.

Estimate Proposal Printable HTML / Text

Construction Estimate & Bid Proposal Template

Complete formal estimate proposal template with customer details, scope of work breakdown, payment terms, and authorization signature line.

[COMPANY NAME] - Construction Proposal

Client: [CLIENT NAME] | Location: [JOB ADDRESS]

Date: [DATE] | Valid Until: [EXPIRATION DATE]


SCOPE OF WORK:

1. [TASK 1 DESCRIPTION] - $[COST]

2. [TASK 2 DESCRIPTION] - $[COST]

TOTAL ESTIMATE: $[TOTAL AMOUNT]

Client Signature: __________________ Date: ____

Change Order Printable HTML / Text

Contractor Scope Change Order Form

Protect your profit margins when scope changes on the job site. Includes extra labor, material costs, schedule adjustments, and client signature.

CONTRACT CHANGE ORDER #___

Project: [JOB TITLE] | Original Contract Date: [DATE]

Description of Work Added / Modified:

- [ADDED SCOPE DETAILS]

Original Contract Amount: $[AMOUNT]

Net Change (+/-): $[CHANGE AMOUNT]

New Revised Contract Total: $[NEW TOTAL]

Approved By Client: __________________ Date: ____

Subcontractor Printable HTML / Text

Subcontractor Work Order Agreement

Clear task assignments, safety requirements, completion milestones, and payment schedule for subbed-out trades.

SUBCONTRACTOR WORK ORDER

General Contractor: [COMPANY] | Subcontractor: [SUB NAME]

Trade Task: [TRADE TYPE] | Start Date: [START DATE]

Scope & Milestones:

1. [MILESTONE 1] - Pay $[AMOUNT]

Subcontractor Signature: _______________ Date: ____

Job Invoice Printable HTML / Text

Itemized Job Invoice & Payment Receipt

Professional billing invoice tracking deposit received, current work progress payment, and remaining balance due.

INVOICE #[INV-NUMBER]

Bill To: [CUSTOMER NAME] | Date: [DATE]

Contract Total: $[TOTAL]

Deposit Received: -$[DEPOSIT]

BALANCE DUE: $[BALANCE]