DIY guides

How to estimate materials for common home and garden projects.

How Many Tiles Do I Need for a Bathroom Floor?

Measure a bathroom floor, work out tiles and boxes for 12x12, 12x24 or mosaic tile, and estimate grout and thinset, with a worked example.

Bulk vs Bagged Mulch: How Much You Need and Which Is Cheaper

How to work out mulch in cubic yards or bags, when bulk delivery beats bags, and how deep to spread it, with worked examples.

How Much Concrete Do I Need for a Driveway?

Cubic yards of concrete for one- and two-car driveways at 4, 5 and 6 inches thick, plus base, reinforcement and how to order ready-mix.

Deck Materials List: How Many Boards, Joists and Screws?

Plan the materials for a rectangular deck: deck boards, joists, beams, posts and screws, with a worked 16 x 12 ft example and spacing rules.

How Much Drywall Do I Need to Finish a Basement?

Work out drywall sheets, screws, joint compound and tape for a basement, with a worked 20 x 30 ft example and tips on board types.

How Many Fence Posts, Rails and Pickets Do I Need?

Plan a wood privacy or picket fence: posts, rails, pickets and concrete, with a worked 150 ft example and tips on spacing, gates and depth.

How Much Gravel Do I Need for a Driveway?

Work out tons of gravel for a new or refreshed driveway, which stone to use in each layer, and how deep each layer should be.

How Much Laminate or Vinyl Plank Flooring to Buy

Measure rooms, add the right waste, and work out boxes, underlayment, baseboard and transitions for laminate or vinyl plank flooring.

How to Measure a Roof for Shingles (Without Climbing It)

Estimate roof area from the ground using your house footprint and pitch, then convert to squares and bundles of shingles, with a worked example.

How to Calculate Square Footage of a Room or House

Measure square footage for rooms, L-shaped spaces, odd shapes and whole houses, and convert to square yards, square meters and acres.

How Many Bags of Concrete Do I Need? (Chart + Examples)

How to work out how many 80, 60 or 40 lb bags of concrete you need for a slab, post holes or a pad, with a quick chart and worked examples.

How Much Paint Do I Need for a Room? A Simple Guide

Work out how many gallons of paint you need for a bedroom, living room or ceiling, with the formula, a room-size chart and tips to avoid buying too much.