EIFS Calculator

EPS board, base coat, and finish for EIFS installation.

Wall area (sq ft)

EPS thickness (in)

Mesh overlap (in)

Base coat layers

Waste allowance (%)

Tab to move between fields

EPS boards (2×4 ft)

138

Finish coat (5-gal pails)

Wall R-value (EPS only)8

Mesh rolls (38"×150')3

Base coat (5-gal pails)6

Adhesive tubes40

EPS volume (cu ft)166.7

How to Use This Calculator

Enter Net Wall Area in sq ft — the surface receiving the EIFS system after openings are deducted.
Set EPS Thickness in inches for your required R-value (EPS provides R-4 per inch).
Enter Mesh Overlap at seams (minimum 2.5 in per code) and number of Base Coat Layers.
Set Waste Allowance (%) for field cuts around openings and corners.
Review EPS Boards, Mesh Rolls, Base Coat Pails, Finish Coat Pails, and Adhesive Tubes for material takeoff.

How the result changes with Wall area (sq ft)

Wall area (sq ft): Net exterior wall area for EIFS application.
EPS thickness (in): Expanded polystyrene insulation board thickness.
Mesh overlap (in): Fiberglass mesh overlap at seams (code minimum typically 2.5 in).
Base coat layers: Number of base coat application layers.
Waste allowance (%): Extra material for cuts and field fitting.

Identify Input Parameters
4 parameters
Wall area (sq ft) = 1000, EPS thickness (in) = 2, Mesh overlap (in) = 4, Base coat layers = 2 = 5 input(s) provided
Calculate EPS boards
EPS boards = ceil(netBoards * (1 + wastePct / 100))
138 = 138
Calculate Finish coat
Finish coat = ceil(finishCoatGal / 5)
4 = 4
Calculate Wall R-value
Wall R-value = epsThickness * 4
8 = 8
Calculate Mesh rolls (38
Mesh rolls (38 = ceil(meshArea / 475)
3 = 3