Walls, Paint & Ceilings

Walls and ceilings need a surface estimate before a product estimate. Measure each wall or ceiling plane, then deduct openings where appropriate. Paint coverage depends on the coating, surface texture, color change, and number of coats; the figure on a can is a starting point, not a guarantee for every surface. Drywall and sheetrock require sheet counts, sheet orientation, openings, and a cutting allowance. Insulation is chosen by the required area and product rating, with framing depth and local requirements checked separately. Decorative finishes introduce other measurements. Wallpaper rolls have a usable width and repeat pattern, so the roll count can differ from a simple wall area calculation. Board and batten and wainscoting depend on trim spacing and finished height. Siding estimates need wall area, openings, and product exposure width. A dropped ceiling uses the grid layout as well as tile counts. Epoxy coverage varies with substrate and coat thickness. Use paint tools for coating quantity, drywall tools for board count, and layout tools for repeated panels or trim. Check product data and the finished dimensions before ordering.