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Professional Line Striping for Contractors

Article 02 of 24

Reading Plans, Specifications, Contracts, and Scope Documents

The Most Expensive Line May Be the One You Did Not Price

Many striping losses begin before the crew reaches the jobsite. A contractor sees the obvious parking stalls, calculates paint and labor, submits a price, and later discovers that the project also includes accessible symbols, access aisles, fire lanes, curbs, loading zones, directional arrows, words, numbers, traffic-control work, multiple mobilizations, or removal of existing markings.

Professional estimating requires more than counting visible lines. The contractor must read the complete set of documents, identify conflicts and missing information, establish the limits of the work, and clearly state what is included and excluded.

The Contract Documents Work as a System

A single drawing rarely contains every requirement. The complete contract package may include drawings, general conditions, supplementary conditions, technical specifications, bid schedules, addenda, approved submittals, manufacturer instructions, owner standards, meeting minutes, written clarifications, and change orders.

Requirements may be located in unexpected places. Pavement markings might appear on civil drawings, architectural plans, accessibility details, traffic-control sheets, landscape drawings, fire-department plans, electrical plans, or project notes.

Never assume that the drawing controls simply because it contains a picture. The contract should establish the order of precedence used when documents conflict. Read that provision before deciding which requirement governs.

Start with the Scope of Work

The scope of work should answer four basic questions:

1. What work is being performed?
2. Where does the contractor’s work begin and end?
3. Who is responsible for each supporting activity?
4. What conditions must be met before the work is accepted?

Words such as “complete,” “all necessary,” “as required,” and “match existing” can create broad obligations. When those words appear, identify exactly what they mean for layout, preparation, materials, equipment, labor, traffic control, mobilization, cleanup, inspection, and repair.

Striping Scope Checklist

Confirm whether the following items are included, excluded, furnished by others, or priced separately:

• Site measurement and original layout
• Restriping the existing layout
• Parking stalls and crosshatching
• Accessible stalls, access aisles, and symbols
• Directional arrows, words, letters, and numbers
• Fire lanes, loading zones, and curb markings
• Wheel stops, signs, posts, and bollards
• Removal or covering of existing markings
• Cleaning and surface preparation
• Primers or specialty surface treatments
• Paint, thermoplastic, tape, beads, or specialty materials
• Traffic control, barricades, flaggers, and spotters
• Night, weekend, or phased work
• Multiple mobilizations and return trips
• Protection of completed markings during cure
• Testing, measurement, reports, and photographs
• Punch-list work, warranty work, and final cleanup

Reading the Drawings

Begin with the cover sheet, drawing index, legends, abbreviations, general notes, and revision history. Verify the drawing date and confirm that the set includes every referenced sheet. Do not estimate from a partial or obsolete plan set.

Check the Scale

Never rely on a printed or displayed scale without checking it. Drawings may have been reduced, enlarged, scanned, or printed using “fit to page.” Use a stated dimension to verify the scale. Written dimensions normally take priority over measurements taken from the drawing, subject to the contract’s order-of-precedence provisions.

Read Notes and Details

A plan view may show only a symbol or line. The associated detail may establish width, color, dimensions, spacing, material, thickness, accessibility requirements, or installation method. Follow every reference bubble, section number, and detail callout.

Review Revisions

Confirm that all addenda and revisions issued before the bid are included. A small revision cloud can change quantities, traffic flow, accessible spaces, materials, or phasing. Record the drawing dates and addenda used to prepare the proposal.

Reading the Technical Specifications

Technical specifications should identify the required materials, preparation, application, workmanship, tolerances, quality-control procedures, and acceptance criteria. Look for requirements covering:

• Approved manufacturers and products
• Material type, color, packaging, and shelf life
• Surface condition and preparation
• Application temperature and weather limits
• Line width and permitted tolerance
• Wet- or dry-film thickness
• Application rate and material coverage
• Glass-bead type and application rate
• Drying or no-track requirements
• Retroreflectivity or performance testing
• Submittals, certifications, samples, and records
• Inspection, correction, and final acceptance

When a specification names a material standard, obtain the referenced standard and confirm that the proposed product complies. Similar color or appearance does not establish technical equivalence.

Quantities and Takeoffs

Count and measure each type of marking separately. Do not combine four-inch lines, wider lines, crosshatching, curbs, symbols, arrows, words, and removal into one unidentified quantity.

Record the drawing sheet, area, marking type, color, width, length, quantity, material, and calculation method. Separate new work from restriping because layout, preparation, and production rates may differ.

Add realistic allowances for machine setup, color changes, stencil work, overspray control, cleanup, waste, material remaining in containers and hoses, touch-up, irregular pavement, and test passes. Theoretical coverage is not the same as usable field coverage.

Requests for Information

A request for information, commonly called an RFI, is used to obtain written clarification when the documents are incomplete, inconsistent, or unclear. A useful RFI identifies the exact drawing or specification, explains the conflict, states why clarification is needed, and requests a specific decision.

Do not silently choose the least expensive interpretation. Do not rely on an undocumented conversation with a superintendent, owner, or property manager. The person giving the instruction may not have contractual authority to change the work.

Changes Require Written Authorization

Field conditions frequently require changes. Extra markings, revised layouts, additional colors, removal, phased access, or return mobilizations can increase labor, material, equipment time, and risk.

Before performing changed work, document:

• Who requested the change
• What is being added, deleted, or revised
• The additional or reduced price
• The schedule effect
• Any effect on warranty or performance
• Written authorization from the responsible party

A signed change order is best. When immediate action is necessary, follow the contract’s written-notice procedure and preserve photographs, measurements, messages, daily reports, and cost records.

Build a Clear Proposal

A strong proposal should identify the project, drawing set, addenda, quantities, materials, preparation, work hours, traffic-control responsibilities, number of mobilizations, price, payment terms, schedule assumptions, exclusions, warranty, and proposal expiration.

Avoid vague proposals such as “stripe parking lot complete.” That phrase does not define the quantity, layout, material, preparation, standard, or responsibilities. A precise proposal protects both the contractor and the customer.

Before You Submit the Price

1. Confirm that the plans and specifications are complete.
2. Verify the drawing dates and all issued addenda.
3. Read the contract’s order-of-precedence provision.
4. Compare the drawings, notes, details, and specifications.
5. Visit the site and document existing conditions.
6. Prepare a traceable quantity takeoff.
7. Resolve conflicts through written questions.
8. Identify inclusions, exclusions, and work by others.
9. Price traffic control, phasing, and mobilization.
10. Keep the documents used to prepare the proposal.

Technical References

• FHWA FP-24 — Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects
  An official example of organized construction specifications, contract requirements, control of work, materials, measurement, payment, and pavement-marking provisions.
• FHWA — MUTCD, 11th Edition with Revision 1
  Federal traffic-control-device requirements. Verify the edition and any state supplement adopted for the project.
• OSHA 29 CFR 1926.20 — General Safety and Health Provisions
  Addresses employer accident-prevention responsibilities and inspection of jobsite conditions, equipment, and materials.
• FHWA-1273 — Required Contract Provisions for Federal-Aid Construction Contracts
  An example of mandatory provisions that may be incorporated into applicable federal-aid contracts.

Professional responsibility: This article is educational and does not provide legal advice. Contract requirements vary by project and jurisdiction. Have uncertain, high-risk, or disputed provisions reviewed by a qualified construction attorney or other appropriate professional before signing the contract or performing disputed work.

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