12 phases. 80+ materials. Every step from raw land to your front door — built for American homeowners and owner-builders who want to know exactly what goes into their house, in what order, and why.
Every material, in the order you'll actually need it. Tap a phase to expand it. Check off materials as you research them.
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Before a single shovel hits the ground, your local jurisdiction has to approve what you're building — and your lot has to be made safe for construction.
Permit requirements vary significantly by state and county. In most US jurisdictions you'll need: a site plan, foundation plan, framing plan, and energy compliance report (IECC 2021 is the current model code, adopted in most states). Texas, South Carolina, and parts of Arizona have limited state building codes — check your specific county. Budget 4–12 weeks for permit approval in most major metros. Ask your local building department specifically about: setback requirements, lot coverage limits, impervious surface rules, and HOA covenants that go beyond code.
IRC Reference: IRC R105 — PermitsThe lot is cut to grade, soil is removed for the foundation, and drainage is planned before any concrete is poured.
US soil types vary enormously. In expansive clay soils (TX, OK, CO, parts of CA), over-excavate and replace with engineered fill — this prevents slab heaving. In sandy coastal soils (FL, GA, SC), you may require driven piling instead of a conventional footing. In the northern US frost belt (above USDA Zone 6), footings must extend below the frost line — typically 42" in Chicago, 48" in Minneapolis, 60" in Fairbanks. The frost line map is available from your local building department.
IRC Reference: IRC R401 — Footings and FoundationsContinuous concrete footings carry the entire weight of the house. They must be sized to the soil's bearing capacity and your local frost depth.
The IRC requires continuous footings to bear on undisturbed soil or engineered fill. Footing width is typically 2× the wall thickness (16" wide for an 8" wall). Depth is determined by your frost line. In cold climate states (Zone 5+), you must have a thermally insulated footing or a frost-protected shallow foundation (FPSF) — the FPSF method lets you pour footings at only 12" depth if properly insulated with rigid foam, which is popular in Scandinavia-influenced Midwest building. Concrete PSI: IRC requires 2,500 PSI minimum for footings not exposed to weathering. Most contractors spec 3,000 PSI for confidence margin.
IRC Reference: IRC R403 — FootingsThe foundation transmits all structural loads to the footings and separates the living space from the earth. Type depends on your region and lot.
Foundation type is heavily regional in the US. Full basements are standard in the Midwest and Northeast (frost depth + bonus space). Crawlspace foundations are common in the Southeast (Carolinas, Tennessee, Virginia) — the 2021 IRC now requires crawlspace encapsulation (sealed vapor barrier, conditioned air) in most climates. Slab-on-grade is the dominant type in the South, Southwest, and California — no frost issue, faster to build. ICF (Insulated Concrete Form) foundations and walls are gaining popularity in tornado zones (OK, KS, TX) and hurricane zones (FL, coastal SE) because they meet or exceed impact/wind codes with minimal added cost.
IRC Reference: IRC R404 — Foundation WallsThe skeleton of the house. Floor systems, load-bearing walls, interior partitions, and the roof structure — all built before any system is run inside the walls.
The "2×4 is not 2 inches by 4 inches" fact trips up every first-time builder. Actual lumber dimensions in the US: a 2×4 = 1.5" × 3.5". A 2×6 = 1.5" × 5.5". A 2×10 = 1.5" × 9.25". Lumber grades relevant for framing: No. 2 Southern Yellow Pine (SYP) is the South's standard. Douglas Fir-Larch (DFL) is standard in the West. Hem-Fir is common in the Northeast. Spruce-Pine-Fir (SPF) is common in the upper Midwest. All are acceptable under IRC — but span tables differ by species, so your plans must specify. Lumber is currently graded and stamped by the American Lumber Standards Committee. Engineered lumber (LVL, I-joists, LSL) must be used per the manufacturer's span tables — they can span much further than dimensional lumber for the same depth.
IRC Reference: IRC R602 & R802 — Wood Wall & Roof FramingThe roof is the house's first line of defense. It goes on before anything else is exposed to weather — in the US, a house should be "dried in" within weeks of framing.
Wind rating matters enormously in the US. Standard architectural shingles are rated for 110–130 mph winds. In wind zones 3 (Gulf Coast, hurricane zones — FL, TX coast, SC, NC coast) and tornado alley (OK, KS, NE, TX panhandle), upgrade to impact-rated shingles (Class 4 impact rating) — these save significantly on homeowner's insurance in those states. Florida has the most stringent wind code in the country (Florida Building Code) — many insurers require Miami-Dade County NOA-approved products. In California and Pacific Northwest, Class A fire-rated roofing is required in WUI (Wildland-Urban Interface) zones — no wood shakes allowed. Ice dams are a serious problem in Zones 5–8 (New England, Great Lakes, northern plains) — address this with proper air sealing, insulation, and ice shield extending to 24" inside the exterior wall line.
IRC Reference: IRC R905 — Requirements for Roof CoveringsWindows and doors are set in the rough openings during framing and sealed against the weather before rough-in work begins inside.
US window ratings are governed by NFRC (National Fenestration Rating Council) labels. Key metrics: U-Factor (lower = better insulation; IRC minimums by zone range from 0.35 to 0.55), Solar Heat Gain Coefficient (SHGC — lower = less solar heat; desired low in the South, higher in the North for passive solar gain), and Visible Transmittance (VT — higher = more light). Energy Star certification thresholds differ by climate zone (Northern, North-Central, South-Central, Southern). In hurricane zones (FL, TX coast), impact-resistant windows are required — look for ASTM E1886 / E1996 compliance and Miami-Dade County approval. Egress requirements (IRC R310): every bedroom must have at least one window with minimum 5.7 sq ft net clear opening, minimum 24" height, minimum 20" width, maximum 44" sill height from floor.
IRC Reference: IRC R308 & R310 — Glazing & Egress OpeningsThree trades work in parallel inside the open walls before insulation and drywall close everything up. The order: HVAC rough-in → plumbing rough-in → electrical rough-in.
Plumbing: PEX-A (expandable) is the current best practice in the US for new construction. It's freeze-resistant, highly flexible, and runs in long uninterrupted lengths from a manifold to each fixture — reducing fittings and potential leak points. Check local plumbing code amendments — California, New York, and several other states have their own plumbing codes that differ from the IPC.
Electrical: The US runs on 120/240V split-phase power. All US homes use the National Electrical Code (NEC) as the base standard. Arc fault circuit interrupter (AFCI) breakers are required in all habitable rooms since NEC 2020 — they are more expensive ($25–$45 each vs. $8 for standard breakers) but catch arc faults before fires start.
HVAC: HVAC sizing in the US is governed by ACCA Manual J (load calculation) and Manual S (equipment selection). The big regional split: Gas furnace + central AC is standard in the Midwest and Northeast. Heat pump systems (air-source or ground-source) are dominant in the South and West.
IRC Reference: IRC P2603, E3901, & M1305 — SystemsInsulation determines your home's energy efficiency for its entire life. The US uses climate zones 1–8 (IECC); your zone determines minimum R-values for every surface.
The IECC 2021 climate zone map divides the US into 8 zones. Zone 1 (southern FL) requires R-38 ceilings, R-13 walls. Zone 5 (Chicago, Denver, Boston) requires R-49 ceilings, R-20+R-5ci walls (ci = continuous insulation). Zone 7 (northern MN, MT, WY) requires R-60 ceilings. Look up your county's climate zone at energycodes.gov. The single biggest performance upgrade available: air sealing before insulation. Blower door testing to confirm air tightness is mandatory in most states (3 ACH50 limit for Zones 3–8; 2 ACH50 for colder areas).
IRC Reference: IECC R402 — Thermal Envelope & IRC R316 — Foam PlasticAfter all rough-in inspections pass, the walls close up. Drywall goes in, taped, mudded, and finished — transforming framing into rooms.
Drywall is measured in sheets (4'×8', 4'×12', 4'×16'). A 2,000 sq ft home typically requires 7,500–9,000 sq ft of drywall, approximately 240–290 sheets of 4×12. Regional texture preferences in the US: Smooth/flat walls — Northeast, Pacific Northwest. Orange peel texture — standard in most of the West and Midwest. Knockdown texture — common in the Southwest and South. Popcorn ceilings — avoid, as they may contain asbestos if the home is pre-1978 and the product was applied before the 1977 EPA ban. Garage walls: IRC R302.6 requires 1/2" Type X drywall on the garage side of a dwelling separation wall (or 5/8" Type X on the ceiling).
IRC Reference: IRC R702 — Interior Covering & R302.6 — Garage SeparationThe final layer — the surfaces people will live with, touch, and see every day for decades. Flooring, trim, paint, cabinets, and fixtures.
Flooring: LVP (luxury vinyl plank) has overtaken hardwood as the most-installed floor covering in new US construction as of 2022. It's waterproof, scratch-resistant, and runs $2–$7/sq ft installed. Real solid hardwood should not be installed in high-moisture areas (basements, bathrooms).
Paint: VOC regulations are strict in California (OTC Region), Colorado, and parts of the Northeast — use zero-VOC or low-VOC paint throughout.
Kitchen & Bath: Countertops: quartz (engineered stone) has dominated the US market since 2017. Bathroom toilet placement: 12" standard rough-in from the finished wall (not framing) is the US plumbing default.
The face of the house — siding, trim, and the immediate site work that makes the lot livable. These are the last materials before your Certificate of Occupancy.
Siding selection is intensely regional in the US. Vinyl siding dominates the Midwest and Northeast — look for VSDA-certified product; minimum .044" thickness. James Hardie HardiePlank is the dominant premium product in the West and Southeast — ring-shank nails only, 1-1/4" from edge minimum. Stucco: in the Southwest, 3-coat stucco (scratch, brown, color coat) is standard. Brick: construction brick (veneer) in the US is typically a 4" wythe tied to the framing — it's cladding, not structural. Grading: final grade must slope away from the foundation (6" drop in 10' per IRC R401.3) to protect foundation waterproofing.
IRC Reference: IRC R703 — Exterior Covering & R401.3 — GradingNot a materials phase — a documentation phase. Your inspector walks every system; you get your Certificate of Occupancy; the house becomes a home.
Every US jurisdiction requires a Certificate of Occupancy (CO) before the home can be legally occupied. The CO is issued by the local building/zoning department after a final inspection confirms the home was built per the approved plans and adopted codes. In many states, the CO is also required before a title company will close on a new construction mortgage. HERS rating: most Energy Star Certified Homes require a HERS score of 57 or lower (scale of 0–150; 100 = average 2006 home; 0 = net zero). Many lenders now offer "green mortgage" programs with lower rates for homes below HERS 55.
Common questions about construction scheduling, building code compliance, and using the roadmap.
The Materials Roadmap is an interactive reference guide detailing the 13 essential stages of building a home in the United States. It outlines all 202 materials needed—from survey stakes and site prep permits to shingles, siding, and final Certificate of Occupancy tests—to help owner-builders and homeowners understand the scheduling sequence, typical costs, and code rules.
Cost ranges are calculated based on national averages for standard builder-grade materials and typical subcontractor labor rates for a 2,000 sq ft home. Keep in mind that local labor availability, premium finish choices, complex structural engineering, and municipal fees can significantly influence your final building budget.
The guidelines are sourced from the International Residential Code (IRC) for structural and safety rules, the National Electrical Code (NEC) for wiring, and the International Energy Conservation Code (IECC) for thermal envelope standards. Always cross-reference these with your municipal building department's local amendments before purchasing materials.
Insulation (R-values), window glazing coefficients (SHGC/U-factor), slab depth, and venting rules depend heavily on local climate. By selecting your IECC Climate Zone using the filter tool above, the roadmap highlights components (such as specialized insulation sheets or vapor barrier wraps) specifically required for your region.
Yes. Any material you mark as "Researched" is automatically saved to your browser's local storage. You can click the "Save Progress" bookmark icon in the sticky dashboard to verify state saving, or click "Print Checklist" to generate a physical paper copy or PDF of your completed tasks.