Home project guides

Paint How much paint do I need for a room? Measure the walls, subtract openings and turn square feet into gallons and quarts, with a worked 12 × 12 ft example. Updated October 30, 2026 Read the guide Flooring How much flooring do I need? How to measure a floor, how much waste to add for plank and tile layouts, and how to round up to boxes. Updated October 30, 2026 Read the guide Roofing How to measure a roof and order shingles Measure the footprint from the ground, find the pitch and turn roof area into squares and bundles of shingles. Updated October 30, 2026 Read the guide Concrete How much concrete do I need for a slab? Turn slab dimensions into cubic yards for a truck or bags for hand mixing, with worked examples for 4 inch slabs. Updated October 30, 2026 Read the guide Fencing How to plan a wood fence Count posts, rails and pickets for a wood fence from its length, with the spacing and gap choices that change the order. Updated October 30, 2026 Read the guide Drywall How many sheets of drywall do I need? Work out the sheet count from room size, doors and windows, waste, and the 4×8 or 4×12 sheet you choose. Updated October 30, 2026 Read the guide