Calculadora de Grade de Forro — Formula

How to Calculate Ceiling Grid Materials

Components

  • Main Runners: Run the length of the room, spaced 4 ft apart. Sold in 12 ft sections.
  • 4-ft Cross Tees: Connect between main runners, spaced every 4 ft along the runner.
  • 2-ft Cross Tees: Used only with 2x2 tiles; they split each 2x4 bay in half.
  • Wall Angle: L-shaped trim around the perimeter where the grid meets the wall.

    • Layout Tips

    Center the grid so border tiles on opposite walls are equal. Avoid border tiles narrower than half a tile width for a balanced appearance.

    Exemplo Resolvido

    A 20 x 16 foot room using 2 ft x 2 ft ceiling tiles.

    1. Ceiling area = 20 x 16 = 320 sq ft
    2. Main runners = ceil(20/12) x ceil(16/4) = 2 x 4 = 8 pieces (12 ft each)
    3. 4-ft cross tees = ceil(20/4) x (4+1) = 5 x 5 = 25 pieces
    4. 2-ft cross tees = ceil(20/2) x 4 = 10 x 4 = 40 pieces
    5. Wall angle = ceil(72/12) = 6 pieces (12 ft each)
    6. Tiles = 10 x 8 = 80 tiles (2x2)