Build a kitchen renovation estimate from separate work scopes
A kitchen remodel combines trades and products with very different measurement units. Cabinets are often planned by linear run, countertop supply by surface area, flooring by installed square footage and appliances by quoted unit prices. A single generic price per kitchen square foot can hide these differences. This calculator keeps measured surfaces, cabinet length, purchased flooring and the main work categories visible in one project budget.
Enter the kitchen length and width for its floor footprint. Countertop area is approximated from the base cabinet run multiplied by the chosen counter depth, then increased by any measured island top. This is not a slab nesting or fabrication model: sinks, cooktop cutouts, seam placement, edge profiles and unusable offcuts affect actual fabrication charges. Use the separate countertop tool for a more detailed purchasing scenario if necessary, without adding the same supply cost twice.
Kitchen surfaces and budget formulas
Flooring order area = floor area × (1 + cut waste ÷ 100)
Countertop area = cabinet run × counter depth (in) ÷ 12 + island area
Cabinet supply = measured run × cabinet price per linear foot
Subtotal = floor + cabinets + counters + backsplash + labor + appliances/fixtures + additional trades + removal + other quotes
Worked example: an L-shaped kitchen budget
For a kitchen measuring 14 by 12 feet, the measured floor is 168 square feet. With a 10% flooring allowance, material-order coverage becomes 184.8 square feet. A base cabinet run of 18 feet beneath a counter 25 inches deep represents 37.5 square feet of counter. An island adding 16 square feet brings total countertop area to 53.5 square feet.
If the backsplash is separately measured at 35 square feet, it remains its own supply line. For a cabinet quote of $300 per linear foot, the cabinet supply contribution would be $5,400; this is an example entered rate, not a claim about prevailing market prices. Appliance, electrical and plumbing totals must come from the actual project scope.
Avoid double counting trades and finish costs
Some contractors provide a single installation quotation that already includes cabinetry, flooring, tile and finishing labor, while others price each item separately. The general renovation labor input should cover only the labor not already included in your other quote fields. Similarly, custom cabinets may include hardware, delivery and installation, whereas stock-cabinet pricing often excludes those services. Check the written scope before combining rates.
Changes to plumbing locations, electrical loads, ventilation or walls introduce work that cannot be inferred from floor area. Distinguish cosmetic finish replacement from layout alterations and structural changes. The model is useful for testing budget scenarios and comparing itemized bids; it does not establish whether a wall can be removed or a gas, water or electrical line can be relocated safely.
Kitchen remodeling questions
Does the calculator estimate the number of countertop slabs?
No. It estimates a simplified finished countertop surface from run length, depth and island area. Supplier slab dimensions, grain direction, seam positions and cutouts determine how many slabs are purchased and should be priced separately by a fabricator.
Why is flooring waste added before applying the material rate?
Cutoffs and breakage can require more material than the finished floor surface. Applying the material rate to the order area models this allowance. If your flooring is sold in complete cartons, use the Flooring Installation Calculator to round the purchase up to the actual package size.
Which costs should go in the additional trades field?
Include separately quoted plumbing, electrical and ventilation changes not already captured in the general labor allowance. Avoid adding identical charges in two fields, particularly when using a design-build contractor's bundled proposal.