Multifamily interior finishes span four CSI MasterFormat divisions: Division 06 for finish carpentry and cabinets, Division 09 for flooring and wall finishes, Division 10 for specialties, and Division 12 for countertops. Getting them right on an apartment project comes down to three decisions that repeat in every unit: what you specify, the order you install it, and whether you confirm the substrate and site conditions before material goes down. This page covers all three for both new construction and value-add renovation, with the product standards and regional conditions that apply across the western states.
The scope reads simple on a finish schedule. The execution is where projects lose time. A cabinet delivered before drywall is finished, a plank installed on a slab that never got a moisture test, a grab bar with no blocking behind it: each one turns into a change order, a punch item, or a callback. The rest of this guide is about avoiding that.
What interior finishes cover on a multifamily project
Interior finishes are the products a resident sees and touches inside the unit. On a multifamily project they group cleanly under four CSI MasterFormat divisions, and a general contractor can award all four to a single subcontractor or split them among specialists.
| CSI division | Scope on a multifamily unit | Typical products |
|---|---|---|
| Division 06 Wood, Plastics, and Composites | Finish carpentry and cabinetry | Kitchen and vanity cabinets, trim, closet shelving |
| Division 09 Finishes | Flooring and wall finishes | LVP, carpet, tile, resilient base, paint |
| Division 10 Specialties | Manufactured specialty items | Bath accessories, grab bars, mirrors, signage, mailboxes |
| Division 12 Furnishings | Countertops and window treatments | Quartz and laminate tops, roller shades, blinds |
Consolidating these divisions under one subcontract removes the coordination gaps that show up when four separate subs share the same unit. The countertop template depends on the installed cabinet. The grab bar depends on Division 06 blocking. The flooring transition depends on the finish schedule for the adjoining room. When one party owns the handoffs, fewer of them get dropped. Innergy covers Division 6 finish carpentry and cabinets, Division 9 flooring, and Division 10 specialties under a single subcontract for multifamily work.
Specification grades by product class
Specification grade should match the property’s rent position, not a default template. Under-specifying a Class A urban tower costs leasing velocity because prospective residents tour three to five competing properties at the same rent. Over-specifying a workforce property spends money the rent roll will not return. The finish schedule sets the grade, and the same product families scale across the range.
Countertops carry the clearest tiers. Class A specifies quartz with a detailed edge profile. Class B specifies quartz or upgraded laminate. Workforce and affordable specify durable laminate. For cabinets, Division 06 grades run from custom and semi-custom with plywood box construction at the top to builder-grade at the workforce end. Cabinet performance standards from the Kitchen Cabinet Manufacturers Association (ANSI/KCMA A161.1) give a common test basis regardless of grade, and composite panels should confirm particleboard (ANSI A208.1) or MDF (ANSI A208.2) core specification.
Flooring specification centers on luxury vinyl plank. Class A and most current Class B specify LVP at a 20 mil wear layer, with carpet retreating to bedrooms or disappearing entirely. Tile appears in Class A showers and amenity spaces. Door hardware and bath accessories under Division 10 grade by ANSI/BHMA A156 series, with commercial grade appropriate for high-turnover student and workforce properties where residential-grade hardware fails early.
Selection and submittals: confirm this before you buy
Confirm four things at submittal review, before any product is ordered: substrate readiness, moisture tolerance, emissions compliance, and accessibility requirements. Each one is cheaper to catch on paper than in a finished unit.
Substrate governs flooring. LVP over concrete follows ASTM F710 for slab preparation, and the slab needs a moisture check before installation. ASTM F2170 (in-situ relative humidity probes) is the current standard method, and ASTM F1869 (calcium chloride) covers moisture vapor emission rate. A plank that meets spec still fails if it goes over a slab above the manufacturer’s moisture limit. Our LVP flooring installation process runs moisture testing as a documented gate, not an assumption.
Emissions compliance matters on every project and is mandatory on green-certified ones. Composite wood in cabinets and doors must meet the EPA TSCA Title VI and CARB Phase 2 formaldehyde limits. Green building programs add FloorScore or Greenguard Gold certification for flooring and low-VOC confirmation for adhesives. Tile assemblies follow the ANSI A108 installation and A118 mortar standards, with tile itself specified to ANSI A137.1. Accessibility drives Division 10: grab bar locations, mounting heights, and reinforcement follow ANSI A117.1 and the Fair Housing Act, and the blocking has to be set during Division 06 rough work because there is no adding it later.
Pre-templating is the selection step that renovation projects skip at their cost. Measuring countertop dimensions before a unit vacates, then ordering fabrication on a rolling schedule, pulls the ten-to-fourteen-day quartz lead time out of the active work window entirely.
Sequencing: the order finishes go in
Finishes install in a fixed order because each trade depends on the one before it, and skipping ahead creates rework. The standard multifamily unit sequence runs: paint prime, cabinet set, countertop template and install, flooring, then Division 10 specialties and accessories, then final paint touch-up.
Cabinets set before countertops because the fabricator templates to the installed base. Flooring in a kitchen usually follows cabinet installation so plank runs to the toe kick rather than under a fixed base, though the finish schedule can call for flooring first. Bath accessories, mirrors, and grab bars go in near the end, into blocking that Division 06 placed during rough carpentry. Our cabinet installation scope coordinates directly with the countertop template so the two trades do not collide in the same unit on the same day.
The one hard prerequisite that cuts across the whole sequence is conditioned air. Permanent HVAC, or documented temporary conditioning, has to be running before flooring and cabinets go in. Every major flooring and cabinet manufacturer sets an installation temperature and humidity range, and installing outside it voids the warranty.
New construction versus renovation
New construction and renovation share the same products and the same divisions, but they run on different clocks and different constraints. New construction installs finishes into an empty building on a linear schedule. Renovation installs into an occupied property, one unit at a time, inside a turnover window.
| Factor | New construction | Value-add renovation |
|---|---|---|
| Access | Whole floors, open schedule | Unit-by-unit, 7 to 14 day turn window |
| Substrate | New slab, needs first moisture test | Existing slab, demo and re-prep |
| HVAC | Permanent system near end of schedule | Often decommissioned, may need temporary cooling |
| Countertops | Batch templating | Pre-template before tenant vacates |
| Documentation | Submittals, closeout | Unit-level before/after photo record |
Renovation lives and dies on the access window. The subcontractor gets a unit when the prior resident moves out and has to finish before the next one moves in, often seven to fourteen days in a strong rental market. That window has no room for a countertop fabrication wait, which is why pre-templating drives renovation scheduling. Renovation also carries a documentation load new construction does not: institutional owners want unit-level before-and-after photos for the portfolio’s due diligence record at refinance or sale.
The renovation economics are consistent across western value-add markets. The common scope replaces worn carpet with LVP, dated laminate with quartz, and original cabinet hardware with a coordinated contemporary finish. Payback periods of three to five years are typical when the renovation-driven rent premium is supported by real submarket demand, which is why sizing the scope against current comparable rents matters more than applying a portfolio template.
Moisture, temperature, and western climate conditions
The western states split into two climate problems for interior finishes: heat and dryness across the interior West, and wet-season moisture across the Pacific Northwest. Both change how and when finishes install.
Heat drives the desert and interior markets. In Arizona from May through September, an unconditioned unit can reach 120 to 130 degrees in the afternoon, well above the installation range for LVP and cabinets. HVAC operational status has to be confirmed and documented before each day’s installation, or the work moves to early morning hours. St. George, Utah, and the Texas summer create the same constraint. Low humidity at altitude in Colorado, Utah, and New Mexico affects material acclimation: cabinets and wood products should reach the building’s operating humidity before installation to prevent cupping or edge cracking, and LVP installation should confirm the in-unit humidity sits inside the manufacturer’s range, which a dry winter unit can fall below.
The Pacific Northwest reverses the problem. Washington and Oregon wet-season construction, October through April, requires floor-by-floor moisture testing before flooring goes in and careful cabinet delivery timing against the building’s moisture conditions. High UV exposure at elevation, common across the Mountain West, argues for UV-stable window treatments and hardware finishes in units with south or west solar exposure.
Regional notes across the western states
Specification standards and compliance requirements shift by state and metro, even though the product families stay the same.
- Arizona and Texas: the highest-volume markets, spanning workforce garden-style through Class A urban, with summer heat as the governing installation constraint.
- Washington and Oregon: premium Class A specification in Seattle, Bellevue, and Portland, plus affordable-unit obligations under Seattle’s Mandatory Housing Affordability program and Portland’s density bonus, which require separate procurement tracking and housing-agency documentation.
- Colorado: the widest specification range in the region, from Denver Class A to mountain resort premium to Front Range value-add, with CHFA LIHTC and Denver inclusionary compliance where affordable units apply.
- Utah and New Mexico: strong value-add renovation markets on dry-climate material rules, with a thinner subcontractor pool that rewards lining up a finishes partner before the schedule goes live.
Across all of them, LIHTC and inclusionary affordable units need unit-level documentation confirming they received the housing agency’s minimum specification, procured separately from the market-rate units while avoiding visible disparity between the two.
Common questions
What is included in multifamily interior finishes? Interior finishes cover CSI Divisions 06 (cabinets and finish carpentry), 09 (flooring, tile, paint), 10 (bath accessories, grab bars, mirrors, signage), and 12 (countertops and window treatments). On an apartment unit that means the cabinets, countertops, flooring, and specialty items a resident sees and touches.
In what order do interior finishes get installed? Cabinets set first, then countertops template to the installed cabinet, then flooring, then Division 10 accessories and mirrors into blocking placed during rough carpentry, then final paint touch-up. Permanent or temporary HVAC has to run before flooring and cabinet installation.
What is the difference between new construction and renovation finishes? Both use the same products and divisions. New construction installs into an empty building on a linear schedule. Renovation installs unit by unit inside a seven-to-fourteen-day turnover window, which makes countertop pre-templating and access-window discipline the deciding factors on schedule.
Do you have to test the slab before installing LVP? Yes. LVP over concrete follows ASTM F710 for slab preparation, with moisture verified by ASTM F2170 relative humidity probes or ASTM F1869 calcium chloride before installation. A compliant plank still fails over a slab above the manufacturer’s moisture limit.
Which product standards apply to multifamily finishes? CSI MasterFormat organizes the scope. Cabinets follow ANSI/KCMA A161.1 with composite cores to ANSI A208.1 or A208.2. Flooring follows ASTM F710, F2170, and F1869. Tile follows ANSI A108, A118, and A137.1. Formaldehyde emissions follow EPA TSCA Title VI and CARB Phase 2. Accessibility follows ANSI A117.1 and the Fair Housing Act.
Work with a single finishes subcontractor
One subcontractor across Divisions 6, 9, 10, and 12 removes the handoff gaps that produce punch items: the countertop that templates to the wrong cabinet, the grab bar with no blocking, the plank over an untested slab. Innergy handles multifamily interior finishes for new construction and value-add renovation across the western states, with substrate testing, temperature confirmation, and pre-templating built into the process rather than left to chance. For multifamily interior finishes on a new build or a renovation program, contact us and we respond within one business day.
Related: Multifamily Cabinet Installation · Multifamily LVP Flooring Installation · Multifamily Countertop Installation · Division 6 Finish Carpentry and Cabinets · Division 9 Flooring · Division 10 Specialties · Multifamily Market