Room Construction Calculator with GI Sheet Roof Nepal
Estimate bricks, plaster, and GI/CGI roof sheets for a single room — including common 12×15 ft room sizes. Free construction calculator for Nepal homeowners.
How this works
floor = L × W net wall area = perimeter × height − openings bricks ≈ net wall volume × 500 / m³ GI sheets from slope area + coverage width + sheet length
Worked example
Defaults approximate a 15×12 ft room (4.57×3.66 m) with 2.9 m walls, 4 m² openings, 30% roof slope, and 12 ft CGI sheets.
FAQ
Can I estimate a 12×15 room with GI sheet roof?
Yes. Enter length and width in metres (12 ft × 15 ft ≈ 3.66 × 4.57 m) or convert first. The calculator estimates bricks, plaster materials, GI sheets, and a rough material cost.
Is labour included?
Default cost is materials only (bricks, cement, sand, GI sheets). Add labour, foundation, electrical, and finishing separately for a full budget.
How are GI sheets counted?
Sheets are laid using effective coverage width after side lap and sheet length along the slope with end lap — the same approach as the dedicated Roof Sheet calculator.
Are openings deducted?
Yes. Enter total door and window area so wall brick and plaster quantities reduce for openings.
Is this a structural design?
No. It is a planning takeoff for homeowners and small builders. Use drawings and an engineer for foundations, seismic detailing, and municipal approval.