Surfaces & Finishes Calculators

Figure out what you need for paint, tile, flooring, drywall, and decking. These tools account for waste factors, pattern layouts, coverage rates, and finish levels so you buy the right amount the first time.

Common Tasks

Paint Walls and Ceilings

Tile or Install Flooring

Hang and Finish Drywall

Build an Outdoor Deck

All Surfaces & Finishes Calculators

Paint Coverage Calculator

paint

Calculate how many liters of paint you need for walls, ceilings, and trim using room dimensions, coat count, and standard coverage rates.

Tile Calculator

flooring

Work out how many tiles to order for floors and walls, with waste factors adjusted for grid, diagonal, and herringbone patterns.

Flooring Calculator

flooring

Estimate flooring materials — laminate, vinyl, or hardwood — for any room size, including waste allowance for cuts and fitting.

Drywall Calculator

interior

Calculate the number of drywall sheets for walls and ceilings, with deductions for doors, windows, and standard sheet sizes.

Decking Calculator

outdoor

Calculate deck boards needed for your outdoor deck, with waste factors adjusted for board direction, joist spacing, and deck shape.

Self-Leveling Compound Calculator

flooring

Calculate bags of self-leveling compound for floor preparation based on area, pour depth, and product coverage rate.

Primer Calculator

paint

Calculate primer gallons needed for drywall, wood, masonry, or previously painted surfaces with coverage rates by surface type.

Joint Compound Calculator

interior

Calculate joint compound, paper tape, and drywall screws by sheet count and finish level per Gypsum Association standards.

In-Depth Guide

Learn the concepts behind these calculators with worked examples and reference tables.

Surfaces & Finishes Guide →