Enter a room's dimensions, cabinet wall runs, and fixture clearances once and get cabinet linear footage, bathroom clearance checks, and tile count together.
A kitchen or bath remodel scope covers more ground than a generic room: cabinet layout and work triangle, fixture clearances, and wet-area tile. This page runs Room Layout once for floor area, then feeds that into Tile, alongside Cabinets and Bathroom fields entered separately since neither shares a dimension with a plain room rectangle. Each calculator below is the same one available on its own page — nothing here is a new formula.
Cabinet linear footage sums your wall runs and subtracts any openings (doorways or pass-throughs) that interrupt a run, then compares that to your actual cabinet widths to find filler strip length — the gap between cabinet boxes and the wall run they sit in. The kitchen work triangle (sink, fridge, cooktop) checks the sum of the three straight-line distances between those points against the common 13-26 ft reference range; too short can feel cramped, too long adds unnecessary walking distance while cooking.
Cabinet wall runs don’t derive from the room’s length and width automatically — an L-shaped or galley kitchen layout has its own run lengths that a room rectangle alone doesn’t determine, so this page asks for them separately.
Enter room dimensions once for floor area and tile. Cabinet wall runs, appliance positions, and bathroom fixture clearances are entered separately since a kitchen layout or bathroom fixture plan isn't determined by room length and width alone.
Floor area from room length and width — the shared backbone for Tile below.
This room has — sq ft of wall and — sq ft of floor.
This room has
The shoelace (surveyor's) formula for the area of a simple polygon, wrapping the last vertex to the first; the perimeter is the Euclidean distance summed around that same closed list. Both are mathematical identities -- no trade convention and no published source stands behind either, and none is needed.
Linear footage, filler strip length, and work triangle from cabinet wall runs and appliance positions.
This layout fits 0 cabinets across — ft of wall.
You'll need
The 26 ft ceiling is long-standing kitchen design guidance, not a code requirement. The 13-21 ft target the verdict is measured against is this tool's own rule of thumb -- nothing published sets it.
General-reference fixture clearance checks for toilet, shower, and lavatory placement.
IRC P2708.1 and its exception. Both are measured to the finished interior surfaces, exclusive of valves, shower heads, soap dishes and grab bars.
Tile count, grout weight, and thinset bags over the room's full floor area.
You'll need — tiles and — lb of grout for — sq ft.
You'll need
Tessellation geometry, not an allowance: each tile sits in a module one joint wider and one joint longer, and whatever the tile does not cover is grout. Nothing is estimated in this ratio.
Coverage per bag as printed on the bag, halved when back-buttering -- that halving is an estimated trade allowance, not a manufacturer figure. NOT area × notch depth × dry density -- that treats a ridged bed as a solid slab AND counts the mix water as powder, over-ordering ~2.5x.
Bathroom fixture clearances check toilet side and front clearance, shower size and front clearance, and lavatory front clearance against 2021 IRC R307.1 and Figure R307.1. Each of the six is the code minimum, not a planning rule of thumb. What they are not is a determination for your jurisdiction: local amendments are common, and an inspector reads the adopted local code — so verify before finalizing a layout.
Ceiling height feeds this check too, converted from the same feet value entered in Room dimensions to the inches Bathroom’s own clearance check expects.
Tile runs over the room’s full floor area from Room Layout here, which fits a fully tiled kitchen or bathroom floor. Tile count factors your tile size and waste percent; grout weight and thinset bag count come from joint width, joint depth, and a density constant you can adjust for your grout product.
If tile only covers part of the room (a shower surround, a kitchen backsplash), switch Tile to manual entry and enter that smaller area directly.
A kitchen's cabinet wall runs and a bathroom's fixture clearances are their own measurements that a room rectangle doesn't determine on its own -- an L-shaped kitchen or an offset bathroom layout needs its own numbers, entered separately, the same way Framing & Structural asks for footing dimensions separately from the wall run.
Yes, by default Tile runs over the full floor area from Room Layout. Switch Tile to "Manual entry" and enter a smaller area if only part of the room is tiled.
They are the 2021 IRC minimums — R307.1 and Figure R307.1 — not general planning figures. They are not a citation for YOUR jurisdiction: local amendments are common, so confirm against the code your inspector actually enforces before finalizing a layout.
Yes. Flip any section to "Manual entry" to edit its inputs directly without changing the room layout or the other calculators.
Material estimate and general reference only. Verify local code, fixture manufacturer specifications, and field conditions before ordering or starting work.