Surface guides
The questions that come up when you are covering a surface: how much extra tile to buy, whether to subtract windows from paint, and what a square of shingles is.
How Many Bags of Mortar Per 100 Blocks?
Eight bags of pre-blended, or three of masonry cement plus sand. The two answers are three and a half times…
How Many Nails Per Shingle?
Four, and six on the exceptions. The code sets four as a floor and hands the rest to the manufacturer,…
How Many Screws Per Sheet of Drywall?
Twenty eight on a wall, thirty five on a ceiling. Nobody publishes a count, so here is the spacing rule…
How Many Coats of Primer Do You Need?
One, in almost every case. The number that actually varies is the spread rate, and a drywall primer covers less…
How Much Does a Bundle of Shingles Weigh?
About 65 to 70 pounds for architectural, 63 for three tab. Almost no manufacturer publishes the figure, so here is…
How Much Drywall Mud Do I Need?
About 10 gallons or 140 pounds per 1,000 square feet of board, which is roughly 90 pounds for a 12…
How Much Thinset Do I Need?
A 50 pound bag covers 90 to 100 square feet with a quarter inch notch and 42 to 47 with…
How Much Grout Do I Need?
A 25 pound bag covers 146 square feet of 3 inch tile and 776 of 24 inch tile, because grout…
How Many Shingles Are in a Bundle?
Twenty six for an old 12 by 36 shingle and about 21 for a modern metric one. Both bundles cover…