HelpMEConstruct
HMC CONSTRUCTION PLANNER

Layout Planner

Explore two schematic room arrangements for a rectangular footprint, then carry your selected measurements into the material estimator.

How to use this tool

Set your footprint

Conceptual space allocations, not approved floor plans. They do not design access routes, doors, windows, setbacks, structure or services. Dimensions are gross room allocations; wall thickness is not deducted. A local architect must review any buildable design.

THE PRACTICAL GUIDE

How to use the Room Layout Planner

Compare two schematic room arrangements for a rectangular footprint with one to five bedrooms. This planner helps explore space allocation before you discuss a buildable design with an architect.

Step-by-step guide

  1. Enter the footprint and units

    Enter length and width in metres or feet. Use the rectangular footprint you want to explore. Changing units converts entered dimensions.

  2. Choose the bedroom count

    Select one to five bedrooms. Both options use this count. The size check only prevents very small schematics; it is not a local building-code or minimum-room-size check.

  3. Compare both options

    Choose Explore layouts. Use the numbered drawing and room list to compare gross room dimensions. Option A gives 55% of the length to the bedroom strip; Option B gives it 65%.

  4. Carry a selected option into the estimator

    Choose Use option A or Use option B in estimator. The footprint, units and that option’s schematic interior partition length transfer. Confirm wall height, openings, specifications and rates separately before calculating.

SEE THE NUMBERS

Worked example

Example: a 20 m Ɨ 15 m footprint with three bedrooms. Both options allocate the same 300 m², with a different split between the bedroom and service strips.

Example inputs and results
Measurement / resultCalculation
Option A bedroom allocationsThree spaces, each 11 m Ɨ 5 m
Option A service allocationsFour spaces, each 9 m Ɨ 3.75 m
Option B bedroom allocationsThree spaces, each 13 m Ɨ 5 m
Option B service allocationsFour spaces, each 7 m Ɨ 3.75 m
Interior partition length transferredOption A: 64 m; Option B: 62 m

The service strip contains Living / dining, Kitchen, Bathroom / utility and Circulation allocations. These are gross rectangles, not usable-area measurements after wall thickness. Selecting B transfers B’s partition length, not A’s.

How it calculates: method & limitations

How the schematic is formed

The footprint is divided into two strips. Bedrooms divide the first strip equally across the width. Four service allocations divide the second strip equally. The diagrams fill the footprint; they do not design doors, windows, furniture clearances or actual access routes.

How partition length transfers

Partition length = (bedrooms āˆ’ 1) Ɨ bedroom-strip length + 3 Ɨ service-strip length + footprint width. This counts the diagram’s internal dividing lines once. It is not a measured construction wall schedule.

What needs professional design

Setbacks, orientation, stairs, accessibility, ventilation, fire safety, plumbing, structure and local approvals are not assessed. An architect must turn a concept into a workable, compliant plan. Wall thickness is not deducted from the displayed room rectangles.

Common mistakes to avoid

  • Treating the schematic as an approved floor plan or a code-compliant design.
  • Confusing gross allocation area with usable internal room area.
  • Sending partition lengths to an estimate without reviewing actual walls and openings.
  • Changing a dimension and using an old option. Generate the layouts again after edits.

Your questions, answered

Are the floor plans ready to build?

No. They are schematic space allocations. They do not include approved access, structural design, services or regulatory checks.

Can I choose a different bedroom count?

Yes. Choose one to five bedrooms. The tool generates both options with your selected count.

Does a larger bedroom option increase total floor area?

No. Both options use the same footprint. Option B gives more of that footprint to the bedroom strip and less to the service strip.

Will selecting a layout calculate a final construction cost?

No. It transfers dimensions and a schematic partition length to the material estimator. You must confirm specifications and enter your own rates.