PDCA to PCA
The Painting and Decorating Contractors of America (PDCA) is now the Painting Contractors Association (PCA). PCA publishes a set of industry standards, numbered P1 through P25 (P18 and P25 were discontinued in December 2022), that many painting contracts and specifications reference. PDCA also published the Cost and Estimating Guide in two volumes: Volume I on estimating methods and Volume II with production rates and tables. PCA's own measurement standard points estimators to those volumes for supplemental examples.
The PCA standards estimators use most
| Standard | What it settles | Why the estimator cares |
|---|---|---|
| P1 Touch-up and properly painted surface | Defines a properly painted surface, judged without magnification at 39 in. (1 m) or more under finished lighting from a normal viewing position | Puts a measurable line under punch lists; repair of damage by others is separate |
| P4 Inspection and acceptance of surfaces | Who inspects and accepts substrates before painting | Prior-trade defects (drywall finish, patching) are not your scope to fix for free |
| P5 Benchmark samples | Full-scale sample procedure | Price the sample area and the approval wait |
| P10 Measurement of surface area | Consistent measuring rules for unit pricing | Makes your production rates comparable job to job |
| P14 Levels of repaint surface preparation | Four levels: Basic, Standard, Superior, Supreme, tied to MPI repaint conditions DSD-0 to DSD-4 | Prep level is the biggest labor swing on repaints |
| P23 Typical exclusions | Items not implied in painting scope unless the documents say so | A ready-made exclusion list for proposals |
Measuring by PCA P10
P10 exists so that measured area relates consistently to labor and material. Key rules:
- No object is measured at less than one foot wide: measure one square foot per linear foot.
- Pipes, rods, structural steel and lumber under one foot in perimeter are measured as one foot; otherwise use actual perimeter.
- Closely fabricated items such as chain-link fence, open web joists and grating are measured as solid, doubled if both sides are finished.
- Small openings are ignored. Deduct openings that run floor to ceiling and are wider than five feet, and any opening of 100 sq ft or more.
- Cabinets, tubs and showers that restrict access are not deducted.
- Group items only when surface, finish, application method and accessibility match; otherwise list them separately.
A 30 ft x 20 ft room with 9 ft walls has two 3 ft x 7 ft doors, three 4 ft x 5 ft windows, and one 8 ft wide floor-to-ceiling storefront opening.
Doors and frames are still counted and priced as their own items. Measuring "net of every opening" would give 900 − 42 − 60 − 72 = 726 sq ft and an under-priced wall if your rates were built on P10-style measurements.
Production rates: your data first
Published references such as PDCA Volume II give starting points by surface, method and condition. Your crews' rates, measured on completed jobs, are better. Track hours by system and surface, and record the conditions: height, occupancy, spray versus roll, color changes, cut-in density.
Crews roll gypsum walls at a tracked 150 sq ft per hour per coat. 20,000 sq ft at two coats:
These rates are examples, not benchmarks. The rate assumption moves the bid more than almost anything else, which is why it should come from your job history.
Specifications and coatings data
Specifications decide which products, systems and inspection apply. Read Section 09 91 00 (Painting) and 09 96 00 (High-Performance Coatings) before taking off. Many specs reference MPI product and system standards; industrial and high-performance work often references AMPP (formerly SSPC and NACE) surface preparation standards and dry film thickness requirements. Use the manufacturer's technical data sheet for spread rate and recoat time, and remember that theoretical coverage assumes no loss.
Lead and repaint rules
- EPA's Renovation, Repair and Painting (RRP) Rule applies to work that disturbs painted surfaces in pre-1978 housing and child-occupied facilities: certified firm, certified renovator, lead-safe work practices and cleaning verification. Price containment, cleanup and records.
- OSHA's lead in construction standard (29 CFR 1926.62) applies to worker exposure on any job that disturbs lead paint, including commercial work outside RRP.
- Use P14 to agree on the repaint prep level before pricing; Level 1 Basic does not warrant existing coats are well adhered.
Exclusions: use P23
P23 lists items typically excluded from painting scope unless the documents say otherwise, including electrical boxes and conduit, mechanical ducts and pipes, sprinkler piping, exposed steel and concrete ceilings, prefinished items, roof items and fences. On commercial work, many specs do call for painting exposed structure and MEP in open ceilings. Read the paint schedule and finish legend; if it is silent, list the items you excluded.
Proposal checklist
- Standards referenced by number: P1 for acceptance, P4 for substrate acceptance, P14 prep level for repaints.
- Measurement basis (P10) for any unit prices.
- Number of coats, systems and sheen by area.
- Color count and accent walls: color changes cost cut-in time.
- Exclusions per P23 and the documents.
- Lead status and responsibility.
Where AI fits: measuring, not pricing
Measuring is automatable; production rates and judgment are your edge. RenderDraw's AI takeoff proposes room areas, wall lengths and door counts with sheet sources; the estimator reviews systems, heights and deductions, then your rates price the work. Try it with a free sample takeoff.
